Diabetes medications PART 2 https://youtu.be/xEkoAv2W6iQ?si=yGJvDts7K_t7RixU

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Questions and Answers

A patient on long-term metformin therapy presents with symptoms of neuropathy and fatigue. Which of the following is the most likely cause?

  • Hypercalcemia
  • Hypokalemia
  • Vitamin B12 deficiency (correct)
  • Elevated liver enzymes

A patient requires a basal insulin to provide 24-hour coverage with minimal peak effect. Which of the following insulin formulations is most appropriate?

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

A patient with type 2 diabetes is prescribed an SGLT2 inhibitor. What is the primary mechanism of action of this medication?

  • Inhibiting glucose reabsorption in the renal tubules (correct)
  • Stimulating insulin secretion from the pancreas
  • Slowing gastric emptying
  • Increasing insulin sensitivity in peripheral tissues

A patient newly started on acarbose complains of excessive gas and abdominal discomfort. What is the most likely cause of these symptoms?

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

A patient needs an insulin that can be injected immediately before a meal to control postprandial glucose excursions. Which of the following insulin types would be most appropriate?

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

A patient on metformin should be monitored for which potential vitamin deficiency?

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

Which of the following insulin analogs provides a relatively constant level of insulin activity over 24 hours, reducing the risk of nocturnal hypoglycemia?

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

SGLT2 inhibitors lower blood glucose by which mechanism?

<p>Reducing glucose reabsorption in the kidneys (C)</p> Signup and view all the answers

A patient taking acarbose reports frequent flatulence. How does acarbose contribute to this gastrointestinal side effect?

<p>Fermentation of undigested carbohydrates in the colon (A)</p> Signup and view all the answers

Which of the following types of insulin should be administered closest to mealtime to control postprandial hyperglycemia?

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

Why is B12 monitoring important for patients on metformin therapy?

<p>Long-term metformin use can lead to B12 deficiency. (D)</p> Signup and view all the answers

Why is glargine considered a basal insulin?

<p>Glargine provides a consistent level of insulin activity over approximately 24 hours with minimal peak, mimicking basal insulin secretion. (A)</p> Signup and view all the answers

How do SGLT2 inhibitors affect glucose levels in patients with diabetes?

<p>By blocking glucose reabsorption in the kidneys, causing more glucose to be excreted in the urine. (B)</p> Signup and view all the answers

Why does acarbose commonly cause bloating and flatulence?

<p>It inhibits the breakdown of complex carbohydrates, leading to undigested sugars in the colon that are fermented by bacteria, resulting in gas production. (A)</p> Signup and view all the answers

Why is lispro typically administered immediately before a meal?

<p>Lispro has a rapid onset and short duration of action, allowing it to quickly address postprandial glucose excursions when taken immediately before a meal. (B)</p> Signup and view all the answers

Why does long-term metformin use necessitate B12 monitoring?

<p>Metformin directly interferes with the body's ability to absorb B12. (A)</p> Signup and view all the answers

Why is insulin glargine preferred for basal insulin coverage over NPH?

<p>Glargine provides a more consistent and prolonged release, reducing hypoglycemic risk. (C)</p> Signup and view all the answers

How do SGLT2 inhibitors lower blood glucose levels?

<p>By blocking the reabsorption of glucose in the kidneys. (A)</p> Signup and view all the answers

What causes the elevated occurrence of bloating and flatulence associated with acarbose?

<p>Acarbose inhibits carbohydrate digestion, leading to increased fermentation in the colon. (C)</p> Signup and view all the answers

Why is lispro administered immediately before a meal rather than 30 minutes prior?

<p>Lispro has a rapid onset and short duration, closely mimicking the body's natural insulin response to a meal. (B)</p> Signup and view all the answers

A patient on long-term metformin therapy exhibits signs of peripheral neuropathy and macrocytic anemia. Which mechanism is most likely responsible for these complications?

<p>Impaired absorption of vitamin B12 due to altered ileal pH. (C)</p> Signup and view all the answers

A patient with type 1 diabetes requires a basal insulin that provides consistent 24-hour coverage. If the patient is concerned about nocturnal hypoglycemia, which insulin would be most appropriate?

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

A patient with type 2 diabetes is prescribed an SGLT2 inhibitor. Besides its primary mechanism, what additional benefit can be expected from this medication?

<p>Modest reduction in blood pressure and potential weight loss. (D)</p> Signup and view all the answers

A patient newly started on acarbose complains of significant abdominal bloating and flatulence. What dietary modification can best minimize these adverse effects while maintaining glycemic control?

<p>Reduce intake of complex carbohydrates and starches. (A)</p> Signup and view all the answers

A patient needs an insulin to cover a meal with a high glycemic index. Which rapid-acting insulin analog should be administered, and what is the recommended timing relative to the meal?

<p>Insulin lispro, immediately before or just after starting the meal. (D)</p> Signup and view all the answers

Why is annual monitoring essential for certain diabetes medications?

<p>To proactively identify and manage potential long-term deficiencies associated with their use. (D)</p> Signup and view all the answers

What is the primary mechanism of action that distinguishes thiazolidinediones (TZDs) from other antidiabetic drugs?

<p>Activating peroxisome proliferator-activated receptor gamma (PPAR-γ) nuclear receptors. (B)</p> Signup and view all the answers

How does pramlintide differ from other injectable diabetes medications?

<p>It mimics the action of an endogenous hormone that modulates gastric emptying and glucagon secretion. (C)</p> Signup and view all the answers

Which antidiabetic medication necessitates prompt discontinuation upon the onset of heart failure symptoms?

<p>Pioglitazone because it can exacerbate fluid retention, worsening heart failure. (C)</p> Signup and view all the answers

Which class of antidiabetic medications is associated with an increased risk of respiratory infections?

<p>DPP-4 inhibitors via mechanisms affecting immune function. (D)</p> Signup and view all the answers

Why is annual monitoring particularly important for patients on certain long-term antidiabetic medications like metformin?

<p>To proactively identify and address the gradual development of vitamin deficiencies, such as B12, that can result from prolonged use. (D)</p> Signup and view all the answers

How do thiazolidinediones (TZDs) exert their antidiabetic effects?

<p>By activating PPAR-gamma nuclear receptors, enhancing insulin sensitivity in peripheral tissues. (B)</p> Signup and view all the answers

What distinguishes pramlintide from other injectable diabetes medications?

<p>It is a synthetic analog of amylin, a hormone that complements insulin's effects. (A)</p> Signup and view all the answers

Why is pioglitazone typically avoided in patients with a history of heart failure?

<p>It promotes fluid retention, which can exacerbate heart failure symptoms. (A)</p> Signup and view all the answers

Which class of antidiabetic medications is most closely associated with an increased risk of upper respiratory tract infections?

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

A patient taking a certain class of antidiabetic medication develops a persistent cough and is diagnosed with an upper respiratory infection. Which medication is most likely contributing to this condition?

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

To best mimic physiological insulin release in response to a meal, when should rapid-acting insulin analogs like lispro or aspart be administered?

<p>15 minutes before the meal (A)</p> Signup and view all the answers

Which class of antidiabetic medications is known to suppress glucagon secretion in addition to enhancing insulin secretion, thus improving overall glycemic control?

<p>GLP-1 agonists (D)</p> Signup and view all the answers

A patient is prescribed NPH insulin to manage their diabetes. Approximately how long after injection can the patient expect the peak effect of this insulin type to occur?

<p>8 hours (A)</p> Signup and view all the answers

A patient taking a medication for type 2 diabetes is advised to increase their fluid intake and monitor for symptoms of dehydration. Which class of medications is most likely causing this recommendation?

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

A patient on a DPP-4 inhibitor develops a persistent cough and fever. What is the most likely explanation for these symptoms?

<p>The medication is associated with an increased risk of upper respiratory infections. (C)</p> Signup and view all the answers

A patient needs guidance on when to administer their mealtime insulin. What is the optimal timing for injecting rapid-acting insulin analogs like lispro in relation to eating?

<p>15 minutes before the start of the meal (D)</p> Signup and view all the answers

A patient with type 2 diabetes is prescribed a GLP-1 agonist. What is the primary mechanism by which GLP-1 agonists reduce glucagon levels?

<p>By increasing insulin secretion, which in turn suppresses glucagon release. (D)</p> Signup and view all the answers

A patient newly started on NPH insulin wants to know when they should be most cautious about potential hypoglycemia after injecting their dose. Approximately how long after an injection of NPH insulin does its peak effect typically occur?

<p>8 hours (B)</p> Signup and view all the answers

A patient taking an SGLT2 inhibitor is advised to increase their fluid intake, especially during hot weather or exercise. What is the primary reason for this recommendation?

<p>To counteract the increased risk of dehydration due to increased glucose excretion in the urine. (B)</p> Signup and view all the answers

How frequently should a patient on long-term metformin therapy be screened for Vitamin B12 deficiency?

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

Which class of antidiabetic medications primarily exerts its effects by activating nuclear receptors?

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

What is the distinguishing characteristic of pramlintide compared to other injectable antidiabetic medications?

<p>It is an amylin analog. (C)</p> Signup and view all the answers

A patient with type 2 diabetes is prescribed an antidiabetic medication. Which of the following medications requires immediate discontinuation if the patient develops symptoms of heart failure?

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

Which mechanism of action primarily contributes to the increased risk of respiratory infections associated with certain antidiabetic medications?

<p>Upregulation of ACE2 receptors, facilitating viral entry into cells. (A)</p> Signup and view all the answers

What is the most significant factor affecting the absorption of metformin?

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

Which insulin formulation exhibits the fastest onset of action following subcutaneous injection?

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

A patient is prescribed a GLP-1 agonist. What is the most important adverse effect to monitor for related to this medication class?

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

When initiating a thiazolidinedione (TZD) for a patient with type 2 diabetes, which pre-existing condition should be the highest priority for monitoring?

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

Which of the following antidiabetic medications is most closely associated with an increased risk of urinary tract infections due to its mechanism of action?

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

What is the primary factor influencing metformin absorption?

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

Which insulin formulation demonstrates the most rapid onset of action following subcutaneous administration?

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

Which class of antidiabetic medications necessitates vigilant monitoring for the potential development of pancreatitis?

<p>GLP-1 agonists (B)</p> Signup and view all the answers

When initiating a thiazolidinedione (TZD) medication for a patient with type 2 diabetes, which pre-existing condition warrants the closest monitoring?

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

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

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

A patient on a DPP-4 inhibitor reports a persistent cough. What is the most appropriate initial action?

<p>Discontinue the DPP-4 inhibitor and monitor the patient's symptoms. (C)</p> Signup and view all the answers

Which characteristic is most important in determining whether an insulin formulation qualifies as a basal insulin?

<p>Consistent, prolonged release providing a stable insulin level over 24 hours. (C)</p> Signup and view all the answers

A patient with type 2 diabetes and a history of declining renal function is currently managed with metformin. At what estimated glomerular filtration rate (eGFR) should metformin therapy be definitively discontinued?

<p>eGFR less than 30 mL/min/1.73 m² (D)</p> Signup and view all the answers

Which class of antidiabetic medications has been associated with an increased risk of bone fractures, particularly in women?

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

A patient is prescribed acarbose to manage their postprandial hyperglycemia. When should the patient take this medication?

<p>At the start of each meal to delay carbohydrate absorption. (A)</p> Signup and view all the answers

A patient on a DPP-4 inhibitor is being monitored to prevent infections. What is the most effective preventative strategy?

<p>Closely monitoring for early signs and symptoms of infection. (A)</p> Signup and view all the answers

Which characteristic is most indicative of a basal insulin's function?

<p>Providing a steady level of background insulin coverage over 24 hours. (D)</p> Signup and view all the answers

A patient with declining renal function is managed with metformin. At what estimated glomerular filtration rate (eGFR) does metformin pose an unacceptable risk and need to be discontinued?

<p>eGFR &lt; 30 mL/min/1.73 m² (A)</p> Signup and view all the answers

Which class of antidiabetic medications is associated with an increased risk of bone fractures due to its effects on bone density?

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

To maximize its therapeutic effect, when should a patient take acarbose in relation to their meals?

<p>Immediately before or with the first bite of a meal. (D)</p> Signup and view all the answers

Why is pioglitazone contraindicated or used with caution in patients with a history of heart failure?

<p>It leads to sodium and fluid retention, potentially worsening heart failure. (A)</p> Signup and view all the answers

A patient on a sulfonylurea asks when they can expect the peak effect of the medication. What is the approximate time frame for the peak effect of sulfonylureas?

<p>2 to 3 hours (D)</p> Signup and view all the answers

Under which circumstance is it most important for a patient with diabetes to check their ketone levels?

<p>During periods of high blood glucose to assess for diabetic ketoacidosis (DKA). (D)</p> Signup and view all the answers

Which class of medications directly influences GLP-1 levels in the body, and what is the mechanism of action?

<p>DPP-4 inhibitors, by preventing the breakdown of endogenous GLP-1. (D)</p> Signup and view all the answers

In which clinical scenario does the risk of lactic acidosis significantly increase in patients taking metformin?

<p>In patients with renal failure due to reduced metformin clearance. (C)</p> Signup and view all the answers

Which antidiabetic medication requires careful fluid monitoring due to the risk of exacerbating heart failure?

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

Approximately how long after oral administration does a sulfonylurea reach its peak plasma concentration and exert its maximal effect on insulin secretion?

<p>2-3 hours (B)</p> Signup and view all the answers

In which of the following scenarios is it most important for a patient with diabetes to check their ketone levels using a urine or blood ketone test?

<p>During periods of hyperglycemia (high blood glucose), especially with illness. (A)</p> Signup and view all the answers

Which class of antidiabetic medications increases endogenous glucagon-like peptide-1 (GLP-1) levels by inhibiting their enzymatic degradation?

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

In which clinical condition does the risk of lactic acidosis significantly increase in patients taking metformin, necessitating careful monitoring or discontinuation of the drug?

<p>In patients with severe renal impairment. (D)</p> Signup and view all the answers

In addition to monitoring blood glucose, for which of the following adverse effects should fluid status be carefully monitored in a patient prescribed pioglitazone?

<p>Heart failure exacerbation (A)</p> Signup and view all the answers

A patient taking a sulfonylurea asks how long it will take for the medication to reach its maximum effect after taking it. What is the typical timeframe for the peak effect of sulfonylureas following oral administration?

<p>2 to 3 hours (D)</p> Signup and view all the answers

Under which condition is it most important for a patient with diabetes to check their ketone levels?

<p>During periods of illness or high blood glucose (B)</p> Signup and view all the answers

Which class of medications increases endogenous glucagon-like peptide-1 (GLP-1) levels, and by what mechanism?

<p>DPP-4 inhibitors; by preventing GLP-1 degradation (D)</p> Signup and view all the answers

In which clinical scenario does the risk of lactic acidosis significantly increase in patients taking metformin, necessitating careful monitoring or discontinuation of the drug?

<p>In patients with significant renal impairment (B)</p> Signup and view all the answers

A patient with type 2 diabetes is prescribed pioglitazone. For which of the following potential adverse effects is it MOST important to monitor fluid status?

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

Approximately how long after oral administration can a patient taking a sulfonylurea expect the peak effect on insulin secretion?

<p>2-3 hours (B)</p> Signup and view all the answers

Under which of the following conditions is it MOST important for a patient with diabetes to check their ketone levels?

<p>During periods of persistent hyperglycemia (B)</p> Signup and view all the answers

Which class of antidiabetic medications increases endogenous glucagon-like peptide-1 (GLP-1) levels, and by what mechanism?

<p>DPP-4 inhibitors; prevent GLP-1 breakdown (C)</p> Signup and view all the answers

Which antidiabetic medication necessitates careful monitoring of fluid status due to the risk of exacerbating heart failure?

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

Approximately how long after oral administration does a sulfonylurea exert its peak effect on insulin secretion?

<p>2-3 hours (A)</p> Signup and view all the answers

Why is it critical to consider contrast holding, or temporarily discontinuing use, for patients on metformin?

<p>Due to the increased risk of nephropathy that could lead to lactic acidosis. (C)</p> Signup and view all the answers

Why is renal function a key consideration when determining the appropriate dosage of an SGLT2 inhibitor?

<p>Because SGLT2 inhibitors' mechanism of action is dependent on kidney function. (A)</p> Signup and view all the answers

What is the primary mechanism by which GLP-1 agonists contribute to weight loss in patients with type 2 diabetes?

<p>Through the reduction of appetite and promotion of satiety. (B)</p> Signup and view all the answers

In the initial management of diabetic ketoacidosis (DKA), what is the most crucial intervention and why?

<p>Intravenous fluid administration to restore volume status. (A)</p> Signup and view all the answers

Why is it particularly important to carefully adjust the dosage of sulfonylureas in elderly patients?

<p>Because the elderly often have reduced renal function, increasing hypoglycemia risk. (C)</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 absorption of glucose in the small intestine. (D)</p> Signup and view all the answers

Why is fluid resuscitation the most crucial initial step in treating a patient presenting with diabetic ketoacidosis (DKA)?

<p>To improve renal perfusion and facilitate the excretion of ketones, addressing metabolic acidosis. (D)</p> Signup and view all the answers

How do GLP-1 agonists contribute to weight loss in patients with type 2 diabetes beyond their effects on appetite and gastric emptying?

<p>By modulating central nervous system pathways involved in satiety and reward, altering eating behavior. (D)</p> Signup and view all the answers

What is the underlying reason for exercising caution when prescribing sulfonylureas to elderly patients with type 2 diabetes?

<p>Elderly patients are at higher risk for hypoglycemia due to age-related declines in renal function and altered drug metabolism. (B)</p> Signup and view all the answers

Why is it MOST important to consider temporarily discontinuing metformin before a patient receives contrast dye?

<p>To reduce the risk of nephropathy associated with metformin-induced lactic acidosis. (B)</p> Signup and view all the answers

Why is heart failure a contraindication for thiazolidinedione (TZD) use?

<p>TZDs increase the risk of fluid retention, exacerbating symptoms of heart failure. (C)</p> Signup and view all the answers

Why is monitoring vitamin B12 levels particularly important in patients taking metformin?

<p>Metformin can interfere with B12 absorption in the ileum, potentially leading to deficiency. (A)</p> Signup and view all the answers

What is the approximate onset of action for rapid-acting insulin analogs like lispro or aspart after subcutaneous injection?

<p>Approximately 15 minutes. (B)</p> Signup and view all the answers

Why is potassium level monitoring particularlyimportnant for patients prescribed with SGLT2 inhibitors?

<p>SGLT2 inhibitors can lead to changes in electrolyte balance, potentially affecting potassium levels. (C)</p> Signup and view all the answers

Why is regular renal function monitoring essential for patients taking metformin?

<p>Decreased renal function can lead to metformin accumulation, increasing the risk of lactic acidosis. (D)</p> Signup and view all the answers

A patient with type 2 diabetes is prescribed both metformin and a thiazolidinedione (TZD). What potentially synergistic adverse effect should the healthcare provider monitor for?

<p>Increased risk of fluid retention and heart failure. (D)</p> Signup and view all the answers

A patient with type 2 diabetes is prescribed metformin but has a history of heavy alcohol use. What is the primary concern regarding this combination?

<p>Increased risk of lactic acidosis due to impaired lactate metabolism. (B)</p> Signup and view all the answers

Why is heart failure a major contraindication for prescribing thiazolidinediones (TZDs)?

<p>TZDs lead to significant fluid retention, which can worsen heart failure. (C)</p> Signup and view all the answers

Why is routine monitoring of vitamin B12 levels particularly important for patients on long-term metformin therapy?

<p>Metformin interferes with the absorption of vitamin B12 in the ileum, potentially causing deficiency. (D)</p> Signup and view all the answers

What is the approximate onset of action for rapid-acting insulin analogs like lispro or aspart when administered subcutaneously?

<p>Approximately 15 minutes. (B)</p> Signup and view all the answers

Why is it necessary to closely monitor serum potassium levels in patients prescribed SGLT2 inhibitors?

<p>SGLT2 inhibitors can lead to hypokalemia by increasing potassium excretion in the urine. (D)</p> Signup and view all the answers

Why is routine assessment of renal function crucial for patients taking metformin?

<p>Metformin is primarily cleared by the kidneys, and impaired renal function increases the risk of lactic acidosis. (C)</p> Signup and view all the answers

Which of the following is a primary mechanism by which GLP-1 receptor agonists can lead to weight loss in patients with type 2 diabetes?

<p>Reduced appetite and delayed gastric emptying, promoting satiety. (B)</p> Signup and view all the answers

Why is it especially important to individualize and carefully adjust sulfonylurea dosages in elderly patients with type 2 diabetes?

<p>Elderly patients often have decreased renal function and increased sensitivity to hypoglycemia. (A)</p> Signup and view all the answers

Which of the following best describes the effect of GLP-1 agonists on digestion?

<p>Slows gastric emptying, promoting increased satiety and potentially aiding in weight management. (B)</p> Signup and view all the answers

Which class of antidiabetic medications necessitates regular bone density monitoring due to an increased risk of fractures?

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

Which class of antidiabetic medications is most strongly associated with an increased risk of yeast infections, particularly in women?

<p>SGLT2 inhibitors (B)</p> Signup and view all the answers

In a patient with diabetes, under which of the following circumstances is it most important to check ketone levels?

<p>When blood glucose levels are consistently above 250 mg/dL. (B)</p> Signup and view all the answers

Which antidiabetic medication is most closely associated with an increased risk of urinary tract infections due to its mechanism of action?

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

How does the action of GLP-1 agonists primarily contribute to managing blood glucose levels in patients with type 2 diabetes?

<p>By slowing down digestion, which enhances satiety and reduces glucose absorption. (D)</p> Signup and view all the answers

Why are patients prescribed thiazolidinediones (TZDs) routinely monitored for bone health?

<p>TZDs have been linked to an increased risk of bone fractures due to alterations in bone metabolism. (B)</p> Signup and view all the answers

What physiological effect of SGLT2 inhibitors predisposes patients to a higher risk of yeast infections?

<p>Increased glucosuria, providing a nutrient-rich environment for yeast proliferation. (B)</p> Signup and view all the answers

Under what specific condition should a patient with diabetes be advised to immediately check their ketone levels to prevent potential complications?

<p>If their blood sugar remains above 250 mg/dL, despite taking diabetes medications. (D)</p> Signup and view all the answers

Dapagliflozin is linked to a higher incidence of urinary tract infections (UTIs). What is the primary reason for this increased risk?

<p>Dapagliflozin increases glucose concentration in the urine, promoting bacterial growth. (B)</p> Signup and view all the answers

Beyond increasing satiety, what is another key mechanism by which GLP-1 agonists contribute to improved glycemic control?

<p>Slowing gastric emptying to reduce postprandial glucose excursions. (A)</p> Signup and view all the answers

Why are patients prescribed thiazolidinediones (TZDs) monitored for bone health?

<p>TZDs can reduce bone density, increasing the risk of fractures, particularly in women. (B)</p> Signup and view all the answers

Why do SGLT2 inhibitors increase the risk of yeast infections?

<p>SGLT2 inhibitors cause glucosuria, which provides a nutrient-rich environment for yeast proliferation. (B)</p> Signup and view all the answers

In which scenario is ketone testing most important for individuals with diabetes?

<p>During periods of intercurrent illness or when blood glucose levels are consistently above 250 mg/dL. (D)</p> Signup and view all the answers

What is the primary mechanism by which dapagliflozin increases the risk of urinary tract infections?

<p>Dapagliflozin increases urinary glucose, providing a substrate for bacterial growth. (D)</p> Signup and view all the answers

What is the typical duration of action for NPH insulin?

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

Which class of antidiabetic medications directly affects glucagon secretion?

<p>GLP-1 agonists (B)</p> Signup and view all the answers

What is metformin's primary mechanism of reducing blood glucose?

<p>Reducing hepatic glucose production (B)</p> Signup and view all the answers

In which clinical scenario is it most important to avoid or discontinue thiazolidinediones (TZDs)?

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

Which common antidiabetic medication is most likely to cause Vitamin B12 deficiency with long-term use?

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

What is the primary mechanism of action of SGLT2 inhibitors?

<p>Blocking glucose reabsorption in the kidneys (B)</p> Signup and view all the answers

A patient taking metformin for several years presents with numbness and tingling in their extremities. Which of the following actions is most appropriate?

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

A patient with type 2 diabetes is prescribed a medication that increases their risk of urinary tract infections. Which of the following medications is most likely responsible?

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

A patient with heart failure is diagnosed with type 2 diabetes. Which of the following antidiabetic medications should be avoided due to its potential to exacerbate the patient's pre-existing condition?

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

Why does glargine require consistent daily timing of administration?

<p>To provide consistent basal insulin levels. (A)</p> Signup and view all the answers

Why are elderly patients particularly susceptible to hypoglycemia when treated with sulfonylureas?

<p>Reduced awareness of hypoglycemic symptoms. (C)</p> Signup and view all the answers

In what situation is dosage adjustment of DPP-4 inhibitors most critical?

<p>Renal decline. (C)</p> Signup and view all the answers

Which mechanism explains why sitagliptin increases GLP-1 levels?

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

Why should acarbose be administered with meals?

<p>To slow carbohydrate absorption during digestion. (D)</p> Signup and view all the answers

What is the primary reason for monitoring for urinary tract infections (UTIs) in patients taking empagliflozin?

<p>Empagliflozin's action promotes glucosuria, fostering bacterial growth. (A)</p> Signup and view all the answers

A patient with impaired kidney function is prescribed a DPP-4 inhibitor. What adjustments, if any, should be made to the medication regimen?

<p>Reduce the dose of the DPP-4 inhibitor based on the degree of renal impairment. (D)</p> Signup and view all the answers

A patient on a sulfonylurea is experiencing frequent episodes of hypoglycemia. What contributing factor related to the medication itself should be evaluated?

<p>The sulfonylurea might be interacting with other medications, prolonging its half-life. (D)</p> Signup and view all the answers

Why is consistent daily timing most crucial for insulin glargine?

<p>To ensure a stable basal insulin level is maintained. (A)</p> Signup and view all the answers

An elderly patient is prescribed a sulfonylurea. Which potential risk should be most carefully monitored?

<p>Increased risk of hypoglycemia. (C)</p> Signup and view all the answers

In which scenario is dosage adjustment of a DPP-4 inhibitor most critical?

<p>Declining renal function. (C)</p> Signup and view all the answers

Which of the following medications increases glucagon-like peptide-1 (GLP-1) levels by inhibiting its degradation?

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

When should acarbose be administered to effectively manage postprandial hyperglycemia?

<p>With the first bite of each meal to delay carbohydrate absorption. (A)</p> Signup and view all the answers

A patient is prescribed empagliflozin. For which of the following potential adverse effects is monitoring most important?

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

Why do sulfonylureas pose a higher risk of hypoglycemia in elderly patients compared to younger patients?

<p>Elderly patients often have decreased awareness of hypoglycemic symptoms. (B)</p> Signup and view all the answers

How does sitagliptin contribute to improved glycemic control in patients with type 2 diabetes?

<p>By inhibiting the enzyme that inactivates GLP-1, thereby prolonging GLP-1's action. (B)</p> Signup and view all the answers

Pramlintide mimics the effects of which endogenous hormone?

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

In a patient taking an SGLT2 inhibitor, under what condition would it be most appropriate to discontinue the medication immediately?

<p>The development of a severe urinary tract infection. (A)</p> Signup and view all the answers

Which of the following antidiabetic medications primarily improves insulin sensitivity in peripheral tissues?

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

For which antidiabetic medication is temporary discontinuation typically recommended before the administration of iodinated contrast dye?

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

Which class of antidiabetic medications necessitates careful monitoring of fluid status due to the risk of exacerbating or causing heart failure?

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

What is the typical duration of action for rapid-acting insulin analogs?

<p>3-4 hours (B)</p> Signup and view all the answers

A patient with a history of gastroparesis is prescribed pramlintide. How should this medication be administered in relation to meal times?

<p>Pramlintide is not indicated (B)</p> Signup and view all the answers

A patient taking metformin is scheduled for a CT scan with contrast. Which factor is least important when deciding whether to temporarily discontinue metformin?

<p>History of allergy to iodine (C)</p> Signup and view all the answers

Pramlintide exerts its primary therapeutic effect through which mechanism?

<p>Acting as an analog of amylin, modulating postprandial glucose levels. (B)</p> Signup and view all the answers

Under what condition is it most appropriate to discontinue an SGLT2 inhibitor?

<p>The patient is diagnosed with a severe urinary tract or genital infection. (D)</p> Signup and view all the answers

A patient with type 2 diabetes is scheduled for a CT scan with contrast. Which oral antidiabetic medication should be considered for temporary discontinuation prior to the procedure?

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

Which class of antidiabetic medications necessitates regular monitoring of fluid status to mitigate the risk of heart failure exacerbation?

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

Why are electrolyte levels particularly important to monitor in patients prescribed SGLT2 inhibitors?

<p>SGLT2 inhibitors can lead to significant potassium changes. (A)</p> Signup and view all the answers

Which class of antidiabetic medications is most closely associated with an increased risk of pancreatitis?

<p>GLP-1 agonists (D)</p> Signup and view all the answers

What is the primary route of metformin clearance from the body?

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

Which antidiabetic medication prevents the breakdown of GLP-1 by inhibiting the DPP-4 enzyme?

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

How is GLP-1 agonist administered?

<p>Subcutaneously via injection (A)</p> Signup and view all the answers

A patient is prescribed an SGLT2 inhibitor. Which electrolyte imbalance is most important to monitor?

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

Which class of antidiabetic medications carries a known risk of pancreatitis?

<p>GLP-1 agonists (C)</p> Signup and view all the answers

How is metformin primarily cleared from the body?

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

Which medication prevents the breakdown of GLP-1 by inhibiting the DPP-4 enzyme?

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

What is the route of administration for GLP-1 agonists?

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

Why is it important to monitor electrolyte levels in patients using SGLT2 inhibitors?

<p>To monitor for potential potassium imbalances. (C)</p> Signup and view all the answers

Which class of antidiabetic medications is associated with an increased risk of pancreatitis?

<p>GLP-1 agonists (C)</p> Signup and view all the answers

What is the primary route of administration for GLP-1 agonists?

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

Approximately how long after injection does NPH insulin typically reach its peak effect?

<p>8 hours (A)</p> Signup and view all the answers

In patients undergoing treatment for diabetes, which class of medications necessitates monitoring for yeast infections as a potential adverse effect?

<p>SGLT2 inhibitors (D)</p> Signup and view all the answers

Which class of antidiabetic medications primarily reduces appetite, contributing to weight loss in patients with type 2 diabetes?

<p>GLP-1 agonists (C)</p> Signup and view all the answers

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

<p>Activating peroxisome proliferator-activated receptors (PPARs) (A)</p> Signup and view all the answers

Which of the following antidiabetic medications is most likely to cause fluid retention as an adverse effect?

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

A patient on NPH insulin asks when they are most likely to experience a hypoglycemic event due to the peak effect of the insulin. What is the approximate time frame for the peak effect of NPH insulin?

<p>8 hours after injection (C)</p> Signup and view all the answers

A patient taking an antidiabetic medication is advised to monitor for signs of yeast infections. Which class of medications is most likely causing this recommendation?

<p>SGLT2 inhibitors (D)</p> Signup and view all the answers

A patient with type 2 diabetes is looking to manage their weight in addition to controlling blood sugar. Which class of antidiabetic medications is known for its appetite-reducing effects?

<p>GLP-1 agonists (A)</p> Signup and view all the answers

A patient with type 2 diabetes starts a new medication. The doctor explains that it works by activating a nuclear receptor that improves insulin sensitivity. Which class of medications is the patient most likely taking?

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

A patient with type 2 diabetes has a history of heart failure. Which of the following antidiabetic medications is most likely to cause fluid retention, potentially exacerbating their condition?

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

In a patient with type 2 diabetes on metformin, which condition significantly elevates the risk of lactic acidosis, necessitating careful monitoring or discontinuation of the drug?

<p>Severe renal failure (B)</p> Signup and view all the answers

For which potential adverse effect is it most important to monitor patients prescribed thiazolidinediones (TZDs) like pioglitazone, especially those with pre-existing conditions?

<p>Heart failure exacerbation (B)</p> Signup and view all the answers

Which antidiabetic medication is associated with an increased risk of bone fractures, particularly in postmenopausal women, due to its effects on bone density?

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

A patient asks about the best way to store their unopened insulin vials. What is the most appropriate recommendation to ensure the insulin's stability and effectiveness?

<p>Refrigerated until the expiration date (C)</p> Signup and view all the answers

Why is renal function a crucial consideration when determining the suitability and dosage of SGLT2 inhibitors in patients with type 2 diabetes?

<p>The efficacy of SGLT2 inhibitors is reduced in patients with impaired renal function (D)</p> Signup and view all the answers

Which of the following conditions poses the greatest risk of lactic acidosis in a patient taking metformin?

<p>Severe renal impairment (A)</p> Signup and view all the answers

For which potential adverse effect is it most important to monitor patients initiating or continuing thiazolidinedione (TZD) therapy?

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

Which antidiabetic medication is most strongly associated with an increased risk of bone fractures, particularly in postmenopausal women?

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

What is the most appropriate way to store unopened vials of insulin to maintain its effectiveness?

<p>Refrigerated at 2-8°C (36-46°F) (B)</p> Signup and view all the answers

A patient with type 2 diabetes, who is currently managed with metformin, has an eGFR of 28 mL/min/1.73 m². Which action is MOST appropriate regarding their metformin prescription?

<p>Discontinue metformin due to the high risk of lactic acidosis (D)</p> Signup and view all the answers

Why is it critical to consider pausing metformin administration prior to procedures involving contrast dye?

<p>To mitigate the risk of lactic acidosis in the event of contrast-induced nephropathy. (C)</p> Signup and view all the answers

For which potential adverse effect is ongoing monitoring MOST crucial when a patient is prescribed a GLP-1 agonist?

<p>Pancreatitis due to increased risk of pancreatic inflammation. (A)</p> Signup and view all the answers

Why is it particularly important to carefully adjust and potentially reduce the dosage of sulfonylureas in elderly patients with type 2 diabetes?

<p>Elderly patients are more susceptible to hypoglycemia due to decreased renal function and altered drug metabolism. (B)</p> Signup and view all the answers

What is the primary mechanism by which SGLT2 inhibitors lower blood glucose levels in patients with type 2 diabetes?

<p>Blocking the reabsorption of glucose in the kidneys, increasing urinary glucose excretion. (C)</p> Signup and view all the answers

What is the primary purpose of basal insulin in the management of diabetes?

<p>To mimic the natural, continuous release of insulin by the pancreas to maintain stable blood glucose levels between meals and overnight. (C)</p> Signup and view all the answers

What is the primary mechanism by which GLP-1 agonists necessitate monitoring for pancreatitis?

<p>GLP-1 agonists may increase pancreatic enzyme secretion and cellular stress, potentially inducing pancreatitis in susceptible individuals. (A)</p> Signup and view all the answers

A patient with type 2 diabetes is prescribed an SGLT2 inhibitor. What is the primary mechanism of action of this medication on glucose uptake?

<p>SGLT2 inhibitors block glucose reabsorption in the kidneys, increasing glucose excretion in the urine. (A)</p> Signup and view all the answers

What is the primary role of basal insulin in diabetes management?

<p>To provide a constant background level of insulin to suppress hepatic glucose production and maintain glycemic control between meals and overnight. (A)</p> Signup and view all the answers

For which potential adverse effect is it most important to monitor patients taking GLP-1 receptor agonists?

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

Study Notes

  • Metformin requires caution when using contrast dye due to nephropathy risk, so it should be held.
  • Pancreatitis requires monitoring when using GLP-1 agonists because of inflammation risk.
  • Sulfonylureas may need dosage adjustments in elderly patients because of hypoglycemia risk.
  • SGLT2 inhibitors block glucose uptake by inhibiting renal reabsorption.
  • Basal insulin provides background coverage for 24-hour glucose control.
  • Metformin use requires B12 monitoring because of deficiency risk.
  • Glipizide is not held when using contrast.
  • Bone density is not monitored when using GLP-1 agonists.
  • Metformin dosages do not need adjusting in elderly patients.
  • DPP-4 inhibitors do not block glucose uptake.
  • Meal coverage is not the purpose of basal insulin.
  • Sitagliptin does not require B12 monitoring.

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