Diabetes Drugs and Insulin Types PART 3 https://youtu.be/xEkoAv2W6iQ?si=yGJvDts7K_t7RixU

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Questions and Answers

A patient with type 1 diabetes is prescribed insulin to manage their blood glucose levels during meals. Which type of insulin would be most appropriate for this purpose, considering its rapid onset of action?

  • Insulin lispro (correct)
  • NPH insulin
  • Regular insulin
  • Insulin glargine

A patient requires a long-acting insulin to provide basal coverage throughout the day. Which of the following insulin types would be most suitable to meet this need?

  • Insulin aspart
  • NPH insulin
  • Insulin detemir (correct)
  • Regular insulin

A patient newly diagnosed with type 2 diabetes is prescribed Metformin. What primary mechanism of action contributes to Metformin's ability to lower blood glucose levels?

  • Increasing insulin release from the pancreas
  • Inhibiting hepatic gluconeogenesis (correct)
  • Enhancing the effects of incretin hormones
  • Slowing the absorption of carbohydrates from the intestine

A patient taking Metformin is scheduled for a CT scan with contrast. Which potential adverse effect should the healthcare provider be most concerned about when administering contrast to this patient?

<p>Lactic acidosis (B)</p> Signup and view all the answers

A patient experiences hypoglycemia while taking a sulfonylurea medication. What mechanism of action underlies this adverse effect?

<p>Increased insulin release from the pancreas (D)</p> Signup and view all the answers

Which of the following insulin types has a duration of action that lasts approximately 4 to 6 hours?

<p>Regular (C)</p> Signup and view all the answers

A patient taking a medication ending in 'ide' is counseled about a potential disulfiram reaction. Which class of anti-diabetic drugs is most likely being used by this patient?

<p>Sulfonylureas (D)</p> Signup and view all the answers

A patient with type 2 diabetes is prescribed a medication that works by depolarizing the potassium channel in pancreatic cells. Which drug class does this medication belong to?

<p>Sulfonylureas (D)</p> Signup and view all the answers

A patient with renal insufficiency is prescribed an oral anti-hyperglycemic medication. Which of the following medications should be used with caution or avoided due to the increased risk of lactic acidosis?

<p>Metformin (C)</p> Signup and view all the answers

Which class of medications shares a similar mechanism of action to sulfonylureas but binds to a different site to cause insulin release?

<p>Meglitinides (C)</p> Signup and view all the answers

A patient taking a medication ending in '-gliptin' is likely undergoing treatment that directly impacts which enzyme?

<p>Dipeptidyl peptidase-4 (DPP-4) (D)</p> Signup and view all the answers

Which of the following best describes the mechanism of action of medications ending in '-flozin'?

<p>Inhibiting the reabsorption of glucose in the kidney (B)</p> Signup and view all the answers

A patient reports increased gas and bloating after starting a new medication for diabetes. Which class of drugs is most likely responsible for these symptoms?

<p>Alpha-Glucosidase Inhibitors (B)</p> Signup and view all the answers

Pramlintide is classified as an amylin analog and is often used in conjunction with insulin. What is its primary mechanism of action in managing blood glucose levels?

<p>Working alongside insulin to help lower glucose levels. (B)</p> Signup and view all the answers

Which of the following adverse effects is most closely associated with the use of thiazolidinediones (TZDs)?

<p>Increased risk of heart failure (B)</p> Signup and view all the answers

A new antidiabetic drug is developed that functions by potentiating glucagon-like peptide-1 (GLP-1). Which of the following suffixes would most likely be part of the drug's name?

<p>-tide (A)</p> Signup and view all the answers

Which of the following best explains how DPP-4 inhibitors lower glucose levels in patients with type 2 diabetes?

<p>By inhibiting the breakdown of GLP-1, thus increasing insulin release and decreasing glucagon secretion. (C)</p> Signup and view all the answers

A patient taking canagliflozin should be monitored for which of the following potential adverse effects?

<p>Hyperkalemia (D)</p> Signup and view all the answers

Which drug class prevents the breakdown of oligosaccharides into absorbable glucose?

<p>Alpha-Glucosidase Inhibitors (D)</p> Signup and view all the answers

A patient on antidiabetic medication develops a urinary tract infection. Which class of drugs could be the most likely cause?

<p>SGLT2 Inhibitors (C)</p> Signup and view all the answers

A patient with type 1 diabetes requires a rapid-acting insulin to manage post-meal glucose spikes. Considering the pharmacokinetic properties, which of the following insulin analogs would be most appropriate?

<p>Insulin lispro (C)</p> Signup and view all the answers

A patient is prescribed NPH insulin as part of their diabetes management. Approximately how long does NPH insulin typically last?

<p>10-16 hours (A)</p> Signup and view all the answers

A patient with type 2 diabetes is prescribed metformin. What is the primary mechanism by which metformin lowers blood glucose?

<p>Inhibiting hepatic gluconeogenesis (A)</p> Signup and view all the answers

A patient taking metformin is scheduled to undergo a procedure requiring contrast dye. What potential adverse effect associated with metformin use is of greatest concern in this scenario?

<p>Lactic acidosis (A)</p> Signup and view all the answers

A patient on glyburide reports experiencing frequent episodes of lightheadedness, shakiness, and sweating. What is the most likely cause of these symptoms?

<p>Hypoglycemia (A)</p> Signup and view all the answers

A patient is prescribed glimepiride for type 2 diabetes. Which of the following best describes the mechanism of action of this medication?

<p>Increases insulin release from pancreatic beta cells (C)</p> Signup and view all the answers

Which of the following antidiabetic medications is most likely to cause a disulfiram-like reaction if taken with alcohol?

<p>Glipizide (C)</p> Signup and view all the answers

A patient is started on a medication that works by binding to a different site on the potassium channel than sulfonylureas but causes a similar effect. Which class of medications is this patient most likely taking?

<p>Meglitinides (C)</p> Signup and view all the answers

A patient newly diagnosed with type 2 diabetes asks about the duration of action for Regular insulin. Which duration is most appropriate to share with the patient?

<p>Approximately 4-6 hours (C)</p> Signup and view all the answers

A patient is prescribed metformin and asks the healthcare provider about potential vitamin deficiencies related to the medication. Which vitamin deficiency is most associated with long-term metformin use?

<p>Vitamin B12 (D)</p> Signup and view all the answers

A patient is prescribed a medication ending in '-gliflozin'. Which of the following mechanisms of action best describes how this medication works?

<p>Inhibiting the sodium-glucose co-transporter 2 (SGLT2) in the kidney to reduce glucose reabsorption. (D)</p> Signup and view all the answers

A patient taking acarbose reports experiencing increased intestinal gas and bloating. What is the primary mechanism by which acarbose leads to these gastrointestinal side effects?

<p>Reduced breakdown and absorption of complex carbohydrates in the intestine. (D)</p> Signup and view all the answers

A patient with type 2 diabetes is prescribed pioglitazone. What is the primary mechanism of action of this medication in improving glycemic control?

<p>Increasing the sensitivity of peripheral tissues to insulin. (B)</p> Signup and view all the answers

A patient taking canagliflozin is counseled on potential adverse effects. Which of the following is most closely associated with this medication?

<p>Urinary tract infections. (A)</p> Signup and view all the answers

A patient asks about the mechanism by which sitagliptin lowers blood glucose. Which of the following explanations is most accurate?

<p>It inhibits the breakdown of incretin hormones, thereby increasing insulin release and decreasing glucagon levels. (B)</p> Signup and view all the answers

Which of the following antidiabetic medications is most likely to cause hypoglycemia as a primary adverse effect when used as monotherapy?

<p>Pramlintide. (D)</p> Signup and view all the answers

A patient with a history of heart failure should be closely monitored while using which class of antidiabetic medications?

<p>Thiazolidinediones (TZDs). (D)</p> Signup and view all the answers

For which of the following medications should patients be educated about the possibility of post-meal hypoglycemia?

<p>Acarbose. (B)</p> Signup and view all the answers

Which of the following antidiabetic medications is administered via subcutaneous injection?

<p>Exenatide. (D)</p> Signup and view all the answers

Which class of antidiabetic drugs alters the conversion of ogliosaccharides to monosaccharides?

<p>Alpha-Glucosidase Inhibitors. (C)</p> Signup and view all the answers

A patient is prescribed repaglinide. Which of the following mechanisms of action best describes how this medication lowers blood glucose?

<p>Stimulating insulin release from pancreatic beta cells by binding to a specific site, distinct from sulfonylureas. (A)</p> Signup and view all the answers

A patient taking sitagliptin reports a new onset of a mild upper respiratory tract infection. Which of the following mechanisms is most closely associated with this adverse effect?

<p>Inhibition of DPP-4, leading to altered immune responses. (A)</p> Signup and view all the answers

A patient is prescribed liraglutide. What primary mechanism of action explains its effect on blood glucose levels?

<p>Potentiation of GLP-1, leading to increased insulin release and decreased glucagon secretion. (A)</p> Signup and view all the answers

Canagliflozin is prescribed to a patient with type 2 diabetes. Which of the following is a key mechanism of action of this drug?

<p>Inhibiting the reabsorption of glucose in the proximal tubules of the kidneys. (B)</p> Signup and view all the answers

A patient taking acarbose experiences frequent episodes of gas and bloating. What is the most direct cause of these gastrointestinal symptoms?

<p>Accumulation of unabsorbed oligosaccharides in the intestine. (D)</p> Signup and view all the answers

Pioglitazone improves glycemic control through which of the following mechanisms?

<p>Activating PPARγ receptors to increase insulin sensitivity. (C)</p> Signup and view all the answers

A patient with type 2 diabetes is prescribed pramlintide as an adjunct to insulin therapy. What is the primary mechanism by which pramlintide aids in glycemic control?

<p>Reducing glucagon secretion and slowing gastric emptying. (B)</p> Signup and view all the answers

A patient with type 1 diabetes needs an insulin that closely mimics the body's basal insulin secretion. Which of the following insulin types would be most appropriate?

<p>Glargine (C)</p> Signup and view all the answers

Which of the following best describes how DPP-4 inhibitors lower blood glucose levels?

<p>By inhibiting the enzyme that degrades GLP-1, thereby increasing insulin secretion and decreasing glucagon secretion. (C)</p> Signup and view all the answers

A patient with type 2 diabetes who also has moderate renal impairment is prescribed metformin. Which potential adverse effect should the healthcare provider monitor most closely?

<p>Lactic acidosis (A)</p> Signup and view all the answers

Which of the following best explains the rationale for temporarily discontinuing metformin in a patient undergoing a CT scan with contrast?

<p>To minimize the risk of contrast-induced nephropathy leading to metformin accumulation (B)</p> Signup and view all the answers

A patient taking glipizide asks how the medication works. Which of the following explanations is most accurate?

<p>It stimulates your pancreas to release more insulin. (A)</p> Signup and view all the answers

A patient taking a sulfonylurea reports experiencing sweating, trembling, and confusion. Which of the following actions is most appropriate?

<p>Administer glucagon (D)</p> Signup and view all the answers

A clinician is considering prescribing a medication to help manage a patient's postprandial blood glucose levels. Which of the following medications primarily targets postprandial hyperglycemia by delaying glucose absorption in the small intestine?

<p>Acarbose (C)</p> Signup and view all the answers

A patient with type 2 diabetes asks why they need to avoid excessive alcohol consumption while taking a sulfonylurea. What is the most appropriate explanation?

<p>Alcohol can cause a disulfiram-like reaction when taken with sulfonylureas (A)</p> Signup and view all the answers

A patient is prescribed NPH insulin at 7:00 AM. Around what time of day should the patient be educated to be most vigilant for potential hypoglycemic reactions due to the insulin's peak effect?

<p>3:00 PM to 4:00 PM (A)</p> Signup and view all the answers

How would you rank the duration of action of rapid-acting, short-acting, intermediate-acting and long-acting insulin from shortest duration to the longest duration?

<p>Rapid-acting, short-acting, intermediate-acting, long-acting (C)</p> Signup and view all the answers

A patient with type 2 diabetes is prescribed Metformin. The patient asks how this medication will help in lowering their blood sugar. What is the most appropriate response?

<p>Inhibits glucose production in the liver, increases glucose utilization in the muscles, and reduces intestinal glucose absorption. (A)</p> Signup and view all the answers

A patient with type 1 diabetes is using rapid-acting insulin before meals. If the patient injects insulin at 7:00 AM, when should they expect the peak effect of the rapid-acting insulin?

<p>8:00 AM to 8:30 AM (D)</p> Signup and view all the answers

Metformin is contraindicated or used with caution in patients with renal impairment due to the risk of lactic acidosis. Which of the following factors contributes most significantly to this risk?

<p>Metformin-induced increase in lactate production combined with reduced renal excretion of both metformin and lactate (A)</p> Signup and view all the answers

Which of the following mechanisms of action is characteristic of drugs ending in '-gliptin'?

<p>Inhibition of the enzyme dipeptidyl peptidase-4 (DPP-4). (D)</p> Signup and view all the answers

A patient taking a medication ending in '-tide' asks about its mechanism of action. Which of the following is the most appropriate explanation?

<p>It mimics the effects of glucagon-like peptide-1 (GLP-1). (D)</p> Signup and view all the answers

Canagliflozin, an SGLT2 inhibitor, lowers blood glucose through which mechanism?

<p>Blocking glucose reabsorption in the kidney. (A)</p> Signup and view all the answers

Acarbose is prescribed to manage a patient's diabetes. What is the primary mechanism of action of this drug?

<p>Inhibiting the breakdown of complex carbohydrates into glucose. (A)</p> Signup and view all the answers

Which of the following best describes the action of thiazolidinediones (TZDs) on insulin sensitivity?

<p>They enhance insulin sensitivity in peripheral tissues by acting on PPARγ. (C)</p> Signup and view all the answers

What is the primary mechanism by which pramlintide helps regulate blood glucose levels?

<p>Delaying gastric emptying and suppressing glucagon secretion. (B)</p> Signup and view all the answers

A patient taking nateglinide asks how the medication works. Which of the following is the most accurate explanation?

<p>It stimulates the pancreas to release insulin. (B)</p> Signup and view all the answers

A patient on dapagliflozin is counseled about potential adverse effects. Which of the following is most closely associated with this medication?

<p>Urinary tract infections and glucosuria. (B)</p> Signup and view all the answers

What potential adverse effect should a healthcare provider monitor when administering contrast dye to a patient taking an alpha-glucosidase inhibitor?

<p>Exacerbation of gastrointestinal side effects. (B)</p> Signup and view all the answers

A patient is started on pioglitazone. Which of the following adverse effects requires careful monitoring?

<p>Heart failure. (D)</p> Signup and view all the answers

A patient with type 2 diabetes is prescribed metformin. What is the primary mechanism by which metformin lowers blood glucose levels?

<p>Inhibiting hepatic gluconeogenesis and increasing peripheral glucose uptake. (B)</p> Signup and view all the answers

A patient with type 2 diabetes is prescribed glipizide. Which of the following best describes the mechanism of action of this medication?

<p>It promotes insulin release from pancreatic beta cells by depolarizing the potassium channel. (B)</p> Signup and view all the answers

Which of the following best describes the rationale for temporarily discontinuing metformin in a patient undergoing a CT scan with contrast?

<p>Contrast dye can cause nephropathy, which, combined with metformin, increases the risk of lactic acidosis. (A)</p> Signup and view all the answers

A patient taking glyburide reports experiencing sweating, trembling, and confusion. Which of the following actions is most appropriate?

<p>Provide a rapid-acting carbohydrate source to treat potential hypoglycemia. (A)</p> Signup and view all the answers

Which of the following statements best differentiates the mechanisms of action between sulfonylureas and meglitinides?

<p>Both drug classes stimulate insulin release, but meglitinides bind to a different site on the potassium channel than sulfonylureas. (D)</p> Signup and view all the answers

A patient with type 1 diabetes requires basal insulin coverage to mimic normal pancreatic function. Which of the following insulin types would be most appropriate?

<p>Glargine (B)</p> Signup and view all the answers

Which of the following correctly ranks the duration of action of rapid-acting, short-acting, intermediate-acting, and long-acting insulin from shortest duration to the longest duration?

<p>Rapid-acting, short-acting, intermediate-acting, long-acting (D)</p> Signup and view all the answers

A patient is prescribed a medication ending in '-glitazone'. Through which mechanism does this medication improve glycemic control?

<p>Increasing insulin sensitivity in peripheral tissues. (C)</p> Signup and view all the answers

Which of the following potential adverse effects is most directly linked to the increased glucose excretion caused by SGLT2 inhibitors?

<p>Increased risk of fungal urinary tract infections. (B)</p> Signup and view all the answers

A patient taking acarbose is counseled to expect which of the following potential adverse effects due to the drug's mechanism of action?

<p>Increased flatulence and abdominal bloating. (B)</p> Signup and view all the answers

What is the primary mechanism by which pramlintide, an amylin analog, helps to regulate postprandial blood glucose levels in patients with diabetes?

<p>Delaying gastric emptying and suppressing glucagon secretion. (B)</p> Signup and view all the answers

Which of the following mechanisms accounts for the primary glucose-lowering effect of DPP-4 inhibitors?

<p>Enhancing the activity of glucagon-like peptide-1 (GLP-1). (A)</p> Signup and view all the answers

A patient is prescribed a medication ending in '-flozin.' Which of the following mechanisms of action best describes how this medication lowers blood glucose levels?

<p>Promoting the excretion of glucose through the urine. (D)</p> Signup and view all the answers

A patient is prescribed pioglitazone for type 2 diabetes. What is the primary mechanism of action by which pioglitazone improves glycemic control?

<p>Increasing insulin sensitivity in peripheral tissues. (A)</p> Signup and view all the answers

A patient taking an alpha-glucosidase inhibitor reports increased gas and bloating. Which of the following best explains the cause of these symptoms?

<p>Undigested carbohydrates fermenting in the colon. (B)</p> Signup and view all the answers

A patient who recently started taking pramlintide reports experiencing frequent mild hypoglycemic episodes. What is the most likely contributing factor?

<p>Pramlintide enhances the action of co-administered insulin, increasing the risk of low blood sugar. (C)</p> Signup and view all the answers

Which class of antidiabetic drugs is known to carry a risk of heart failure and should be used with caution in patients with pre-existing heart conditions?

<p>Thiazolidinediones (TZDs) (D)</p> Signup and view all the answers

A patient with type 1 diabetes requires a long-acting insulin to mimic basal insulin secretion. Which of the following characteristics is most important when choosing an appropriate insulin?

<p>A duration of action lasting approximately 24 hours with no pronounced peak. (A)</p> Signup and view all the answers

A patient with type 2 diabetes is prescribed metformin. The patient's eGFR is consistently between 30-45 mL/min. Which of the following is the most appropriate course of action regarding the Metformin prescription?

<p>Reduce the dose of metformin and monitor renal function closely. (B)</p> Signup and view all the answers

A patient taking glipizide consistently forgets to eat meals after taking their medication, leading to frequent hypoglycemic episodes. Which of the following would be the most appropriate intervention?

<p>Educate the patient on the importance of consistent meal timing and consider a different medication regimen if adherence is a persistent issue. (C)</p> Signup and view all the answers

A patient is prescribed repaglinide to manage post-meal glucose excursions. Which of the following instructions should be emphasized to the patient for safe and effective use?

<p>Skip the medication if a meal is skipped to prevent hypoglycemia. (B)</p> Signup and view all the answers

A patient with type 2 diabetes is taking metformin and plans to start a strenuous exercise program. What advice regarding their medication is most appropriate?

<p>Monitor blood glucose levels closely, especially post-exercise, and be prepared to adjust medication or carbohydrate intake as needed. (C)</p> Signup and view all the answers

A patient with type 2 diabetes is prescribed a medication ending in '-gliptin.' Which of the following best describes the primary mechanism of action of this class of drugs?

<p>Inhibition of the DPP-4 enzyme, prolonging the action of incretin hormones. (A)</p> Signup and view all the answers

A patient is prescribed NPH insulin to be administered at 8:00 AM. At what time of day is this patient most at risk of experiencing hypoglycemia?

<p>4:00 PM to 6:00 PM (A)</p> Signup and view all the answers

Which of the following best illustrates the relationship between sulfonylureas and meglitinides in terms of mechanism of action and binding site?

<p>Both drug classes facilitate insulin release through similar mechanisms, but meglitinides bind to a different site on the pancreatic beta cells than sulfonylureas. (C)</p> Signup and view all the answers

A patient taking metformin experiences persistent gastrointestinal side effects, including nausea and diarrhea, despite dose adjustments. Which of the following strategies might be considered to improve tolerability?

<p>Switch to extended-release metformin, taken with the evening meal. (A)</p> Signup and view all the answers

A patient is prescribed glargine insulin. When should the patient administer their insulin?

<p>Once daily, at the same time each day. (D)</p> Signup and view all the answers

A patient with type 2 diabetes is prescribed repaglinide. What is its primary mechanism of action?

<p>Stimulating insulin release from pancreatic beta cells by binding to potassium channels. (D)</p> Signup and view all the answers

Which antidiabetic medication is most likely to cause gastrointestinal side effects like bloating and gas due to its mechanism of action?

<p>Acarbose (D)</p> Signup and view all the answers

A patient is prescribed canagliflozin. What is the primary mechanism of action of this medication?

<p>Inhibiting SGLT2 in the kidneys to increase glucose excretion. (B)</p> Signup and view all the answers

Which class of antidiabetic medications is associated with an increased risk of urinary tract infections (UTIs) due to its mechanism of action?

<p>SGLT2 Inhibitors (A)</p> Signup and view all the answers

A patient has recently started taking exenatide. By what primary mechanism does this medication lower blood glucose levels?

<p>Stimulating insulin release and inhibiting glucagon release. (A)</p> Signup and view all the answers

Which of the following medications increases insulin sensitivity by binding to PPARγ?

<p>Pioglitazone (B)</p> Signup and view all the answers

A patient taking a medication for type 2 diabetes experiences frequent hypoglycemia, particularly when meals are skipped. Which of the following medications is most likely responsible for this?

<p>Glipizide (C)</p> Signup and view all the answers

What is the primary action of DPP-4 inhibitors in the management of type 2 diabetes?

<p>Inhibiting the breakdown of GLP-1 to increase insulin secretion and decrease glucagon levels. (A)</p> Signup and view all the answers

A patient with type 1 diabetes is prescribed pramlintide to manage postprandial glucose levels. How does pramlintide work?

<p>By slowing gastric emptying and suppressing glucagon secretion. (B)</p> Signup and view all the answers

How does metformin affect patients with renal impairment?

<p>The excretion of the drug is reduced, leading to potential toxic accumulation (C)</p> Signup and view all the answers

A patient with type 2 diabetes who also has a history of mild heart failure is prescribed metformin for glycemic control. Which of the following considerations is most important when initiating metformin therapy in this patient?

<p>Monitoring for signs and symptoms of heart failure exacerbation (A)</p> Signup and view all the answers

A patient with type 1 diabetes is started on lispro insulin. When should the patient administer this type of insulin in relation to mealtimes?

<p>Just before or with meals (A)</p> Signup and view all the answers

A patient taking NPH insulin reports experiencing hypoglycemia in the mid-afternoon. The insulin is administered at 7:00 AM. What is the most likely reason for this hypoglycemic episode?

<p>The peak effect of NPH insulin is occurring. (C)</p> Signup and view all the answers

A patient with type 2 diabetes is prescribed metformin. The patient's eGFR is 40 mL/min. Which of the following is the most appropriate course of action regarding the metformin prescription?

<p>Start metformin at a low dose and monitor renal function closely. (B)</p> Signup and view all the answers

A patient with type 1 diabetes requires an insulin regimen that will provide a constant level of background insulin throughout the day and night. Which of the following insulin types is most appropriate for this?

<p>Glargine insulin (A)</p> Signup and view all the answers

A patient is prescribed glipizide for type 2 diabetes. The patient also has a history of frequently skipping meals. What is the most significant risk associated with this combination?

<p>Hypoglycemia (C)</p> Signup and view all the answers

A patient with type 2 diabetes is prescribed metformin. The patient asks what they should do if they develop persistent diarrhea after starting the medication. What is the most appropriate response?

<p>Take the medication with food and continue taking metformin as prescribed. (D)</p> Signup and view all the answers

A patient with type 2 diabetes is prescribed metformin. Which of the following instructions should be emphasized to the patient to minimize the risk of lactic acidosis?

<p>Avoid excessive alcohol consumption. (D)</p> Signup and view all the answers

A patient with type 1 diabetes is prescribed regular insulin to be administered before meals. If the patient injects the insulin at 7:00 AM, when should they expect the peak effect of the regular insulin?

<p>9:30 AM (A)</p> Signup and view all the answers

A patient with type 2 diabetes is prescribed metformin. The patient reports experiencing persistent nausea and abdominal bloating. What is the most appropriate initial strategy to manage these side effects?

<p>Divide the daily dose and administer it with meals. (A)</p> Signup and view all the answers

A patient with type 2 diabetes is started on metformin. Which of the following mechanisms contributes to metformin's ability to lower blood glucose levels?

<p>Inhibiting hepatic gluconeogenesis and increasing peripheral glucose uptake (C)</p> Signup and view all the answers

A patient with type 2 diabetes is prescribed glipizide. What is the primary mechanism by which sulfonylureas, such as glipizide, lower blood glucose?

<p>Blocking potassium channels in pancreatic beta cells, leading to insulin release (B)</p> Signup and view all the answers

Which of the following mechanisms of action is associated with medications ending in '-gliptin'?

<p>Inhibition of dipeptidyl peptidase-4 (DPP-4) (B)</p> Signup and view all the answers

Canagliflozin lowers blood glucose through which of the following mechanisms?

<p>Inhibiting the reabsorption of glucose in the proximal renal tubule (A)</p> Signup and view all the answers

Which insulin has the longest duration of action and is designed to provide basal coverage throughout the day?

<p>Glargine (B)</p> Signup and view all the answers

A patient prescribed NPH insulin at 7:00 AM should be educated to be most vigilant for potential hypoglycemic reactions around what time, due to the insulin's peak effect?

<p>3:00 PM (A)</p> Signup and view all the answers

A patient taking acarbose reports increased intestinal gas and bloating. What is the primary mechanism by which acarbose leads to these gastrointestinal side effects?

<p>Accumulation of unabsorbed oligosaccharides in the intestine (B)</p> Signup and view all the answers

A patient with type 2 diabetes is prescribed a medication that increases insulin release by binding to potassium channels on pancreatic beta cells, but at a different site than sulfonylureas. Which class of medication is the patient most likely taking?

<p>Meglitinides (D)</p> Signup and view all the answers

A patient taking canagliflozin reports symptoms of a urinary tract infection. What is the most likely mechanism contributing to this adverse effect?

<p>Reduced glucose reabsorption in the kidneys, leading to glucosuria. (D)</p> Signup and view all the answers

Acarbose is prescribed to a patient with type 2 diabetes. What is the primary mechanism of action of this medication?

<p>Inhibiting the breakdown of complex carbohydrates into glucose in the intestine. (C)</p> Signup and view all the answers

A patient is prescribed liraglutide. What is the primary mechanism of action that explains its effect on blood glucose levels?

<p>Activating GLP-1 receptors, thereby enhancing insulin secretion and suppressing glucagon secretion. (A)</p> Signup and view all the answers

A patient with type 2 diabetes who is also being treated for hypertension is prescribed canagliflozin. What potential electrolyte imbalance should be monitored due to the mechanism of action of this medication?

<p>Hyperkalemia (D)</p> Signup and view all the answers

A patient taking metformin asks how the medication works to lower their blood sugar. Which of the following is the most appropriate explanation?

<p>It decreases sugar production in the liver and improves your body's use of sugar (A)</p> Signup and view all the answers

How do DPP-4 inhibitors lower glucose levels in patients with type 2 diabetes?

<p>By enhancing the effects of incretin hormones, leading to increased insulin release and decreased glucagon secretion. (B)</p> Signup and view all the answers

A patient with a history of cardiovascular disease is prescribed an antidiabetic medication. Which class of drugs requires careful monitoring due to potential adverse cardiovascular effects?

<p>Thiazolidinediones (TZDs) (C)</p> Signup and view all the answers

A patient with type 2 diabetes is prescribed a medication that works by directly inhibiting an enzyme that degrades incretin hormones. Which of the following drug classes is this patient most likely taking?

<p>DPP-4 inhibitors (C)</p> Signup and view all the answers

Which of the following mechanisms explains how sulfonylureas lower blood glucose?

<p>Stimulating insulin release from pancreatic beta cells by depolarizing the potassium channel. (D)</p> Signup and view all the answers

A patient taking glipizide is counseled to avoid excessive alcohol consumption due to the risk of what adverse effect?

<p>Disulfiram reaction. (B)</p> Signup and view all the answers

How do meglitinides stimulate insulin release?

<p>By binding to a different site on the potassium channel than sulfonylureas. (B)</p> Signup and view all the answers

Which of the following best describes the primary mechanism of action of DPP-4 inhibitors?

<p>Inhibiting an enzyme that inactivates GLP-1, thereby increasing insulin release and decreasing glucagon secretion. (B)</p> Signup and view all the answers

A patient is prescribed sitagliptin. What is the mechanism of action of this medication?

<p>It inhibits DPP-4, increasing incretin levels and improving glucose control. (D)</p> Signup and view all the answers

What is the mechanism of action of GLP-1 agonists?

<p>Potentiating glucagon-like peptide-1 (GLP-1) to stimulate insulin release and inhibit glucagon release. (B)</p> Signup and view all the answers

Which of the following mechanisms of action is associated with SGLT2 inhibitors?

<p>Inhibiting the reabsorption of glucose in the proximal tubule of the kidney. (D)</p> Signup and view all the answers

A patient has been newly prescribed canagliflozin. What potential adverse effect should the patient be educated about?

<p>Increased risk of urinary tract infections (D)</p> Signup and view all the answers

What is the primary mechanism of action of alpha-glucosidase inhibitors?

<p>Inhibiting the breakdown of complex carbohydrates into glucose in the intestine. (D)</p> Signup and view all the answers

What best describes the primary mechanism of action of thiazolidinediones (TZDs) in the treatment of type 2 diabetes?

<p>Increasing insulin sensitivity in peripheral tissues. (C)</p> Signup and view all the answers

A patient with type 2 diabetes is prescribed metformin. Which of the following mechanisms of action contributes to its ability to lower blood glucose levels?

<p>Inhibiting hepatic gluconeogenesis and increasing peripheral glucose uptake (C)</p> Signup and view all the answers

A patient is prescribed NPH insulin at 7:00 AM. Around what time of day should the patient be advised to monitor for potential hypoglycemic reactions due to the insulin's peak effect?

<p>3:00 PM - 4:00 PM (D)</p> Signup and view all the answers

A patient taking metformin is scheduled for an elective surgery. Which of the following considerations regarding metformin is most accurate?

<p>Metformin should be discontinued 24 hours before surgery and resumed only after renal function is confirmed to be normal post-operatively. (C)</p> Signup and view all the answers

A patient has been consistently using metformin for several years. Which potential long-term adverse effect should be monitored regularly?

<p>Vitamin B12 deficiency (D)</p> Signup and view all the answers

A patient newly diagnosed with type 1 diabetes asks about the role of long-acting insulin. Which of the following best describes the primary function of long-acting insulin?

<p>To provide a constant level of insulin to mimic basal secretion (C)</p> Signup and view all the answers

A patient is prescribed rapid-acting insulin to be taken before meals. If the patient injects the insulin at 7:00 AM, approximately when should they expect the peak effect of the rapid-acting insulin?

<p>8:00 AM - 8:30 AM (C)</p> Signup and view all the answers

A patient is taking metformin and reports new and persistent nausea, abdominal pain, and fatigue. Which of the following conditions should be suspected, particularly if the patient has impaired renal function?

<p>Lactic acidosis (D)</p> Signup and view all the answers

A patient with diabetes is started on insulin therapy. They are prescribed both long-acting insulin and rapid-acting insulin. What is the purpose of administering both?

<p>To mimic the basal insulin secretion of the pancreas and cover mealtime glucose excursions. (B)</p> Signup and view all the answers

Study Notes

Diabetes Drugs Overview

  • Diabetes drugs primarily treat either type 1 or type 2 diabetes.
  • Insulin is the primary treatment for type 1 diabetes.
  • Oral anti-hyperglycemic drugs are the primary treatment for type 2 diabetes, but crossover may occur depending on severity.
  • Diabetes drugs can be categorized into type 1 and type 2 treatments

Insulin Types

  • Key aspects of insulin include their peak time and duration.
  • Pertinent data for each insulin type include name, category, peak time, and duration.
  • Key information for each insulin: name, category, peak time, and duration

Rapid-Acting Insulins

  • Includes lispro, aspart, and glulisine.
  • Peak time is approximately 1 to 1.5 hours.
  • Duration is 3 to 4 hours.
  • Used by type 1 diabetics during meals or to correct high blood glucose levels.
  • "Rapid insulins do not LAG" is the mnemonic (lispro, aspart, glulisine).
  • Represented in red on the insulin level versus time graph.
  • Used by type 1 diabetics at meal times or when blood glucose needs quick correction

Short-Acting Insulins

  • Regular insulin is the only short-acting insulin to know.
  • Peak time is 2.5 hours.
  • Duration is 4 to 6 hours.
  • "Regular and short" is the mnemonic.
  • Duration is longer than rapid-acting insulins.
  • Represented in blue on the insulin level versus time graph.
  • Only one: regular insulin

Intermediate-Acting Insulins

  • NPH insulin is the main type.
  • Peak time is approximately 8 hours.
  • Duration is 10 to 16 hours.
  • "Intermediate is not particularly HAsty" (NPH) is the mnemonic.
  • Represented in purple on the insulin level versus time graph.
  • Main type: NPH insulin

Long-Acting Insulins

  • Includes glargine and detemir.
  • Have no peak time.
  • Duration is 24 hours.
  • Taken once daily to replace the basal insulin function in type 1 diabetics.
  • Provides baseline coverage without a peak, mimicking normal pancreatic function.
  • "God Damn 24 hours is a long time" (glargine, detemir) is the mnemonic.
  • Represented in green on the insulin level versus time graph.
  • Provide basal insulin coverage for type 1 diabetics, mimicking normal pancreatic function

Mnemonics for Insulin Types

  • "Rapid insulins do not lag" (LAG - lispro, aspart, glulisine)
  • "Regular and short" (Regular insulin is short-acting)
  • "Intermediate insulins are not particularly hasty" (NPH)
  • "God damn 24 hours is a long time" (GD - glargine and detemir)
  • Rapid-acting insulins: "Rapid insulins do not LAG" (Lispro, Aspart, Glulisine)
  • Short-acting insulin: "Regular and short"
  • Intermediate-acting insulin: "Intermediate insulins are not particularly hasty" (NPH)
  • Long-acting insulins: "God damn 24 hours is a long time" (Glargine, Detemir)

Type 2 Diabetes Medications: Oral Anti-Hyperglycemics

  • Includes metformin, sulfonylureas, meglitinides, DPP-4 inhibitors, GLP-1 agonists, SGLT2 inhibitors, Acarbose, Thiazolidinediones, and Amylin analogs.
  • Includes Metformin, Sulfonylureas, Meglitenides, DPP4 Inhibitors & GLP-1 Agonists

Metformin

  • A biguanide.
  • Metformin is the prototypical type 2 diabetes oral agent.
  • It is often the initial treatment for type 2 diabetes.
  • Inhibits hepatic gluconeogenesis.
  • Increases glycolysis.
  • Increases peripheral glucose uptake.
  • The net effect is decreased glucose levels.
  • Adverse effects include lactic acidosis, B12 deficiency, and GI upset.
  • Lactic acidosis is more common and dangerous in patients with renal insufficiency.
  • Lactic acidosis can be fatal, especially with renal insufficiency.
  • Metformin is excreted by the kidneys.
  • Contrast-induced nephropathy can occur when contrast is given during imaging.
  • Contrast can temporarily damage kidney function.
  • Impaired kidney function during contrast exposure can cause metformin buildup, leading to lactic acidosis.
  • Kidneys are needed to excrete Metformin; if they cannot, it can build up and cause toxic lactic acidosis.
  • Metformin is often held in hospitalized patients who may need contrast.
  • "Met"formin for "met"abolic acidosis (lactic acidosis) is the mnemonic.
  • Metformin starts with "met," and lactic acidosis is a type of metabolic acidosis.
  • Lactic acidosis is a potentially fatal adverse effect.
  • Prototype for type 2 diabetes oral agents.
  • Category: Biguanide
  • Mechanism:
    • Inhibits hepatic gluconeogenesis
    • Increases glycolysis
    • Increases peripheral glucose uptake
    • Net effect: decreases glucose

Metformin Adverse Effects

  • Lactic acidosis in renal insufficiency
  • Vitamin B12 deficiency
  • GI upset

Metformin and Lactic Acidosis

  • Metformin is normally excreted by the kidneys
  • Contrast used in CT scans can cause contrast-induced nephropathy, temporarily impairing kidney function
  • Impaired kidney function prevents metformin excretion, leading to buildup and potential lactic acidosis
  • Metformin is often held when patients are admitted to the hospital to avoid complications with potential contrast use

Mnemonic for Metformin

  • "Met" for metformin reminds of "metabolic" because lactic acidosis is a type of metabolic acidosis.

Sulfonylureas

  • Increase insulin release by depolarizing the potassium channel.
  • Stimulate insulin release by blocking potassium channels, leading to cell depolarization and calcium influx.
  • Increase the release of insulin.
  • Adverse effects include hypoglycemia and disulfiram reaction.
  • Drugs end in "ide" (glymepiride, glipizide, glyburide).
  • "I'd take your sulfonylurea" helps remember the "ide" ending is the Mnemonic.
  • "I'd take your sulfonylurea if I were you" is the mnemonic
  • Mechanism: Increase insulin release by depolarizing the potassium channel
  • Adverse effects: Hypoglycemia, disulfiram reaction
  • Drugs end in "-ide": Glimepiride, Glipizide, Glyburide
  • Mnemonic: "I'd take your sulfonylurea"

Meglitinides

  • Mechanism is similar to sulfonylureas but has a different binding site.
  • Bind to a different site on potassium channels compared to sulfonylureas.
  • Cause depolarization, calcium channel opening, and insulin release.
  • Also increase insulin release
  • Drugs also end in "ide" (netaglinide, repaglinide).
  • Meglitinides are almost identical to sulfonylureas.
  • Can also cause hypoglycemia.
  • "I'd take your meglitinides" helps remember the "ide" ending is the Mnemonic.
  • Similar to sulfonylureas
  • Mechanism: Same as sulfonylureas, but bind to a different site on the potassium channel
  • Drugs end in "-ide": Nateglinide, Repaglinide
  • Mnemonic: "I'd take your meglitenide"

DPP-4 Inhibitors

  • Drugs end in "gliptin" (lenagliptin, saxagliptin, sitagliptin).
  • Inhibit dipeptidyl peptidase-4 (DPP-4).
  • Reduce urinary and respiratory infections
  • Potentiate glucagon-like peptide-1 (GLP-1).
  • DPP-4 normally inhibits GLP-1, which promotes insulin release and inhibits glucagon release.
  • Inhibiting DPP-4 increases GLP-1 activity, lowering glucose levels.
  • Promote stimulation of insulin release and inhibition of glucagon release.
  • Example drugs are Sitagliptin or Saxagliptin
  • DPP-4 inhibitors also stimulate insulin release and inhibit glucagon release but through a different mechanism than GLP-1 agonists.
  • Lipton Tea makes you pee pee four more times, associating "Lipton" with the drug suffix and "pee pee four" with DPP-4. is the Mnemonic
  • Remember by associating "-liptin" with "Lipton" iced tea; "Lipton makes you pee pee four more times," thus "DPP4" is the Mnemonic
  • DPP-4 inhibitors and GLP-1 agonists work similarly by promoting insulin release and inhibiting glucagon release, but they do so through different mechanisms.
  • All DPP-4 inhibitors end in "-liptin".
  • Drugs end in "-gliptin": Linagliptin, Saxagliptin, Sitagliptin
  • Mechanism: Inhibit DPP-4, potentiating GLP-1
  • Adverse effects: Urinary infections, respiratory infections

DPP-4 Inhibitor Mechanism Explained

  • Eating food releases glucagon-like peptide 1 (GLP-1) which promotes insulin and inhibits glucagon release
  • DPP-4 is an enzyme that inhibits GLP-1
  • DPP-4 inhibitors prevent DPP-4 from inhibiting GLP-1, leading to increased insulin release and decreased glucagon release

GLP-1 Agonists

  • Drugs end in "tide" (exenatide, liraglutide).
  • Potentiate glucagon-like peptide-1 (GLP-1).
  • Potentiate the process of stimulating insulin release and inhibiting glucagon release, similarly to DPP-4 inhibitors but more directly.
  • GLP-1 agonists stimulate insulin release and inhibit glucagon release, similar to DPP-4 inhibitors but more potent.
  • Gulping Tide Pods, relating "gulp" to GLP-1 and "tide" to the suffix.
  • Remember by associating "GLP-1" with "gulping" and the "Tide Pod challenge," thus "tide" for "-tide" drugs (e.g., exenatide, liraglutide) is the memonic.
  • Example drugs are Exenatide or Liraglutide
  • GLP-1 is normally released after eating and promotes insulin release and inhibits glucagon release.
  • DPP-4 normally inhibits GLP-1.
  • DPP-4 inhibitors prevent the inhibition of GLP- by inhibiting DDP-4, resulting in increased insulin release and decreased glucagon release, leading to lower glucose levels.
  • Think of "gulping" like GLP, and recall the "Tide Pod Challenge" where teenagers swallowed Tide Pods (laundry detergent pods).
  • Most GLP-1 agonists end in "-tide".
  • Drugs end in "-tide": Exenatide, Liraglutide

GLP-1 Agonists

  • GLP-1 agonists potentiate the process of stimulating insulin release and inhibiting glucagon release.
  • GLP-1 agonists and DPP-4 inhibitors work similarly by promoting the same process, but do so differently.
  • GLP-1 agonists typically end in "tide" (e.g., exenatide, liraglutide).
  • The mnemonic for remembering GLP-1 agonists involves thinking of someone "gulping" down "tide pods".

DPP-4 Inhibitors

  • DPP-4 inhibitors promote insulin release and inhibit glucagon release.
  • DPP-4 inhibitors typically end in "liptin" (e.g., sitagliptin, saxagliptin, linagliptin).
  • The mnemonic for remembering DPP-4 inhibitors is, "Lipton makes you pee pee four more times," associating "liptin" with "Lipton" iced tea and its diuretic effect.

SGLT2 Inhibitors

  • Mechanism: inhibit the sodium-glucose co-transporter 2 (SGLT2) in the proximal convoluted tubule of the kidney, decreasing glucose reabsorption.
  • Adverse Effects: glucosuria, urinary tract infections, vaginal yeast infections, hyperkalemia, and dehydration.
  • Inhibition reduces the reabsorption of glucose, leading to more glucose excretion in the urine.
  • Glucosuria: Excess glucose in the urine provides a food source for pathogens.
  • The drugs in this class end in "-flozin".
  • Examples: Canagliflozin, Dapagliflozin, Empagliflozin
  • Inhibit the sodium-glucose co-transporter 2 (SGLT2) in the proximal convoluted tubule of the kidney.
  • Flows-in go through the urine, linking the drug suffix to their mechanism of action in the kidneys is the mnemonic.
  • SGLT2 inhibitors end in "-gliflozin" (e.g., canagliflozin, dapagliflozin, empagliflozin).
  • "-gliflozin" drugs cause glucose to "flow" through the urine.
  • SGLT2 inhibitors end in "flozin" (e.g., canagliflozin, dapagliflozin, empagliflozin).
  • They inhibit the sodium-glucose cotransporter 2 (SGLT2) in the proximal convoluted tubule of the kidney.
  • Inhibition of SGLT2 decreases the reabsorption of glucose, leading to glucose excretion in the urine.
  • Adverse effects include glucosuria, urinary tract infections, and vaginal yeast infections due to increased glucose in the urine.
  • Other adverse effects include hyperkalemia and dehydration.
  • A mnemonic is: "flows in" through the urine.

Alpha-Glucosidase Inhibitors

  • Inhibit intestinal brush border alpha-glucosidases, preventing the breakdown of oligosaccharides into absorbable glucose.
  • Adverse effects: GI upset, gas, and bloating due to undigested oligosaccharides in the intestine.
  • Acarbose is a major drug.
  • Key drug: Acarbose, also miglitol.
  • Miglitol is a secondary drug
  • Oligosaccharides are precursor components of glucose
  • Glucose is a monosaccharide
  • Alpha-glucosidases normally convert oligosaccharides into monosaccharide glucose, which can be absorbed into the body.
  • Inhibition prevents the breakdown of oligosaccharides, reducing glucose absorption.
  • A-carb refers to "without carbs," representing the lack of glucose absorption.
  • Example drugs are Acarbose and Miglitol
  • Drugs include acarbose and miglitol.
  • "Acarbose" means "without carbs," so glucose is not produced in the intestine.
  • Alpha-glucosidase inhibitors include acarbose and miglitol.
  • They inhibit intestinal brush border alpha-glucosidases.
  • Alpha-glucosidase enzyme converts oligosaccharides to monosaccharide glucose.
  • Adverse effects include gastrointestinal upset, gas, and bloating.
  • Acarbose inhibits the enzyme that converts oligosaccharides into monosaccharide glucose, preventing glucose absorption.
  • A mnemonic is: "a-carb" literally means without carbs because the intestine is without carbs.

Thiazolidinediones (TZDs)

  • Bind to the peroxisome proliferator-activated receptor gamma (PPARγ), increasing insulin sensitivity.
  • Drugs end in "-glitazone".
  • Adverse effects: heart failure and increased risk of fracture.
  • Bring "glitter" to the party, associating "glitter" (glitazone) with "PPAR-gamma".
  • Drugs include pioglitazone and rosiglitazone
  • "Bring glitter to the party" ("glitta" for "glitazone" and "party" for PPAR gamma) is the mnemonic.
  • Example drugs are Pioglitazone and Rosiglitazone.
  • Drugs end in "-glitazone" (e.g., pioglitazone, rosiglitazone).
  • Bring "glitta" (glitter) to the "party" (PPAR gamma).
  • Thiazolidinediones end in "glitazone" (e.g., pioglitazone, rosiglitazone).
  • TZDs bind to the peroxisome proliferator-activated receptor gamma (PPARγ), increasing insulin sensitivity.
  • Adverse effects include heart failure and increased risk of fracture.
  • A mnemonic is: "bring glitter to the party," associating "glitter" with "glitazone" and "party" with PPARγ.

Amylin Analogs

  • Pramlintide is a synthetic amylin.
  • Works alongside insulin to help lower glucose levels.
  • The adverse effect is hypoglycemia.
  • Key drug: Pramlintide.
  • Amylin works like Insulin, linking the similar suffixes (lin) and functions of these drugs is the memonic.
  • Amylin works like insulin as both end in "-lin. is the mnemonic"
  • Common use case: Type 1 diabetes population.
  • Primary drug: Pramlintide.
  • Amylin works like insu"lin" because they both end in -lin.
  • Pramlintide is the primary amylin analog.
  • Amylin analogs are synthetic amylin and work alongside insulin.
  • They help insulin to decrease glucose.
  • The main adverse is hypoglycemia
  • Amylin works like Insulin

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