Type I & II Diabetes

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

A 55-year-old patient newly diagnosed with type 2 diabetes has an A1C of 8.2%. Despite lifestyle changes, the A1C remains above 7.5%. Considering the ADA guidelines, what is the MOST appropriate next step in managing this patient's hyperglycemia?

  • Prescribe metformin as a first-line therapy. (correct)
  • Recommend a GLP-1 receptor agonist regardless of ASCVD risk.
  • Start with lifestyle modifications and reassess in 6 months
  • Initiate basal insulin therapy immediately.

Which statement BEST describes the impact of insulin on glucose metabolism?

  • Insulin facilitates movement of glucose into cells, promotes storage of glucose as glycogen, and inhibits gluconeogenesis. (correct)
  • Insulin inhibits the conversion of glycogen to glucose, raising blood glucose levels.
  • Insulin impairs the storage of excess glucose as fat in adipose tissues.
  • Insulin stimulates the production of glucose by the liver from non-carbohydrate sources (gluconeogenesis).

When initiating insulin therapy for a type 2 diabetic patient, which factor is MOST critical to consider when determining the starting dose?

  • Patient's ethnicity and family history of diabetes.
  • Patient's weight and current blood glucose levels. (correct)
  • Insurance coverage for different insulin types.
  • Patient's age and gender.

A patient with type 2 diabetes is prescribed canagliflozin. What is the MOST important counseling point to emphasize regarding this medication?

<p>Be aware of the increased risk of urinary and genital infections. (D)</p> Signup and view all the answers

A patient taking glyburide reports experiencing frequent episodes of hypoglycemia. Which medication, if added to their regimen, would MOST likely exacerbate this side effect?

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

Which factor is MOST important to assess before initiating metformin therapy for a patient with type 2 diabetes?

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

A patient with type 2 diabetes is taking pioglitazone. Which potential side effect requires the MOST urgent monitoring?

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

Which antidiabetic medication is MOST likely to cause a delay in carbohydrate absorption, thereby stabilizing postprandial blood glucose levels?

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

A patient with type 2 diabetes is prescribed exenatide. What is exenatide's primary mechanism of action?

<p>Stimulating insulin secretion and reducing glucagon release. (D)</p> Signup and view all the answers

A patient with type 2 diabetes is started on sitagliptin therapy. What is the mechanism of action of Sitagliptin?

<p>Inhibiting the breakdown of endogenous GLP-1. (A)</p> Signup and view all the answers

A patient with type 2 diabetes is prescribed a fixed-dose combination of glyburide and metformin. What is the rationale for using this combination therapy?

<p>To target multiple mechanisms of action for improved glycemic control. (A)</p> Signup and view all the answers

A patient has been taking metformin for several years and is now experiencing symptoms of fatigue and peripheral neuropathy. Which potential side effect should be evaluated?

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

What is the MOST significant risk associated with sulfonylurea medications?

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

A patient presents with generalized fatigue, cold intolerance, and constipation. Initial laboratory results reveal an elevated TSH and low free T4. Which condition is MOST consistent with these findings?

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

When initiating levothyroxine treatment for an elderly patient with known cardiovascular disease, what precaution is MOST important?

<p>Starting with a low dose and titrating slowly. (B)</p> Signup and view all the answers

A pregnant patient with preexisting hypothyroidism requires medication management. What adjustment to her levothyroxine dosage is typically necessary during pregnancy?

<p>The dosage should be increased by 25-50% due to increased thyroid hormone requirements. (D)</p> Signup and view all the answers

Which statement is MOST accurate regarding the treatment of subclinical hypothyroidism?

<p>Treatment is indicated only if the patient is symptomatic or has a TSH greater than 7-10 mIU/L. (A)</p> Signup and view all the answers

Which factor requires the MOST immediate intervention in a newborn diagnosed with congenital hypothyroidism?

<p>Initiating levothyroxine treatment as soon as possible. (D)</p> Signup and view all the answers

A patient is prescribed levothyroxine. To optimize absorption, what instruction should be given?

<p>Take the medication on an empty stomach, 30-60 minutes before breakfast. (A)</p> Signup and view all the answers

A patient on levothyroxine reports experiencing nervousness, irritability, and insomnia. The MOST likely cause is:

<p>Over-replacement of thyroid hormone. (A)</p> Signup and view all the answers

A patient taking levothyroxine is also prescribed cholestyramine. What instruction should be given?

<p>Separate the administration of levothyroxine and cholestyramine by at least four hours. (B)</p> Signup and view all the answers

A patient with hypothyroidism develops adrenal insufficiency. How should these conditions be addressed?

<p>Treat the adrenal insufficiency first before starting levothyroxine. (B)</p> Signup and view all the answers

Which potential adverse effect requires long-term monitoring in postmenopausal women receiving levothyroxine?

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

When monitoring TSH levels, what TSH range is typically targeted for younger adult hypothyroid patients?

<p>0.3-3 mIU/L (B)</p> Signup and view all the answers

A patient with hypothyroidism and a history of angina reports chest pain after starting levothyroxine. What is the next appropriate step?

<p>Decrease the levothyroxine dose or temporarily hold, and evaluate further. (C)</p> Signup and view all the answers

What is the MOST concerning implication of significantly elevated TSH levels in a pregnant patient?

<p>Potential compromise in fetal brain development. (C)</p> Signup and view all the answers

Which of the following BEST differentiates between Type 1 and Type 2 diabetes in terms of pathophysiology?

<p>Type 1 diabetes results from an autoimmune attack on pancreatic beta cells, leading to absolute insulin deficiency, whereas Type 2 diabetes involves insulin resistance and relative insulin deficiency. (A)</p> Signup and view all the answers

Which of the following insulin types has the SHORTEST duration of action and is typically used to cover mealtime blood sugar spikes?

<p>Rapid-acting insulin (insulin lispro) (B)</p> Signup and view all the answers

A patient with Type 2 diabetes is prescribed metformin. Which of the following mechanisms of action BEST describes how metformin lowers blood glucose?

<p>Decreases glucose production in the liver and improves insulin sensitivity (A)</p> Signup and view all the answers

Which of the following statements BEST describes the mechanism of action of sulfonylureas in managing Type 2 diabetes?

<p>They stimulate the pancreas to release more insulin. (D)</p> Signup and view all the answers

A patient who is taking pioglitazone (a thiazolidinedione) should be monitored for which of the following potential adverse effects?

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

Which of the following is a common side effect of alpha-glucosidase inhibitors, such as acarbose and miglitol?

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

Which of the following mechanisms of action is associated with GLP-1 receptor agonists (e.g., exenatide, liraglutide) in the management of Type 2 diabetes?

<p>Mimicking the action of incretin hormones, increasing insulin secretion, suppressing glucagon release, and slowing gastric emptying (B)</p> Signup and view all the answers

DPP-4 inhibitors (e.g., sitagliptin, saxagliptin) lower blood glucose by which mechanism?

<p>Inhibiting the breakdown of endogenous GLP-1 (A)</p> Signup and view all the answers

Compared to sulfonylureas, meglitinides (e.g., repaglinide, nateglinide) have:

<p>A faster onset and shorter duration of action (B)</p> Signup and view all the answers

Which of the following BEST describes the definition of myxedema?

<p>Advanced hypothyroidism in adults (B)</p> Signup and view all the answers

Early detection and management of hypothyroidism are particularly important during pregnancy because:

<p>Adequate thyroid hormone levels are essential for supporting fetal brain development and overall pregnancy health (C)</p> Signup and view all the answers

Which of the following is typically used to replace the missing thyroid hormone in hypothyroidism?

<p>Levothyroxine (synthetic T4) (B)</p> Signup and view all the answers

Flashcards

Type 1 Diabetes Onset

Usually begins in childhood or adolescence.

Type 2 Diabetes Onset

Can begin at any age, is usually diagnosed in adults over 40 but is now occurring more frequently with younger people.

Pathophysiology of Type 1 Diabetes

An autoimmune condition where the body's immune system attacks and destroys insulin-producing beta cells in the pancreas, leading to an absolute deficiency of insulin.

Pathophysiology of Type 2 Diabetes

Characterized by insulin resistance and a relative deficiency of insulin. The body either doesn't produce enough insulin, or the cells don't respond properly to insulin.

Signup and view all the flashcards

Usual Treatment for Type 1 Diabetes

Insulin therapy is required, as the body cannot produce insulin.

Signup and view all the flashcards

Usual Treatment for Type 2 Diabetes

Treatment often starts with lifestyle changes and oral medications, but may progress to injectable medications.

Signup and view all the flashcards

Rapid-acting Insulin

Taken before meals to control blood sugar spikes.

Signup and view all the flashcards

Short-acting Insulin

Taken 30-60 minutes before meals.

Signup and view all the flashcards

Intermediate-acting Insulin

Covers insulin needs for about half a day or overnight.

Signup and view all the flashcards

Long-acting Insulin

Provides a steady level of insulin throughout the day.

Signup and view all the flashcards

Ultra-long-acting Insulin

Lasts for more than 24 hours.

Signup and view all the flashcards

Metformin

Decreases glucose production in the liver and improves insulin sensitivity.

Signup and view all the flashcards

Sulfonylureas

Stimulate the pancreas to release more insulin.

Signup and view all the flashcards

Meglitinides

Stimulate insulin release but are faster-acting than sulfonylureas.

Signup and view all the flashcards

Thiazolidinediones

Improve insulin sensitivity.

Signup and view all the flashcards

DPP-4 Inhibitors

Help increase insulin release and decrease glucagon levels.

Signup and view all the flashcards

Glycosylated Hemoglobin (Hemoglobin A1C)

Blood test that measures the average blood sugar levels over the past 2-3 months.

Signup and view all the flashcards

Normal A1C

A1C level below 5.7%.

Signup and view all the flashcards

Prediabetes A1C

A1C level between 5.7% and 6.4%.

Signup and view all the flashcards

Diabetes A1C

A1C 6.5% or higher is considered diagnostic.

Signup and view all the flashcards

A1C target for Type 2 diabetes

A1C goal greater than 7% may be more appropriate than a goal of less than 7%.

Signup and view all the flashcards

General Target for Most Adults with Diabetes

A1C <7% is recommended.

Signup and view all the flashcards

When to Initiate Insulin for Type 2 Diabetes

If A1C remains above target (usually 7%) despite optimal use of oral medications and/or GLP-1 receptor agonists.

Signup and view all the flashcards

Severe Hyperglycemia

If a patient's A1C is greater than 10% or blood glucose levels are consistently above 300 mg/dL.

Signup and view all the flashcards

Basal Insulin

Basal-Bolus Regimen uses long-acting insulin to provide a steady level of insulin throughout the day.

Signup and view all the flashcards

Premixed Insulin

Combines intermediate-acting and rapid-acting insulin in one injection, taken before breakfast and dinner.

Signup and view all the flashcards

Metformin Precautions

Monitor kidney function regularly, as metformin can cause lactic acidosis, especially in patients with renal impairment.

Signup and view all the flashcards

Sulfonylureas Risk

Major side effect is hypoglycemia.

Signup and view all the flashcards

Sulfonylureas Considerations

Stimulates insulin release from the pancreas. Take with meals to reduce hypoglycemia risk.

Signup and view all the flashcards

Meglitinides

Risk of hypoglycemia, similar to sulfonylureas; flexible dosing schedule, but multiple trips a day are required.

Signup and view all the flashcards

Thiazolidinediones

Can cause or exacerbate heart failure; improve sensitivity.

Signup and view all the flashcards

DPP-4 Inhibitors

Risk of pancreatitis; enhances the body's own ability to lower blood glucose.

Signup and view all the flashcards

SGLT-2 Inhibitors

Increased risk of UTIs and genital infections; work by preventing glucose reabsorption in the kidneys.

Signup and view all the flashcards

Myxedema

Advanced hypothyroidism in adults.

Signup and view all the flashcards

Cretinism

Congenital hypothyroidism from birth.

Signup and view all the flashcards

Hypothyroidism in Pregnant Women: Early Detection

Screen thyroid function early, especially in women with history or suggestive symptoms.

Signup and view all the flashcards

Hypothyroidism Management

Adjust levothyroxine doses as needed, and aim to ensure optimal dosing.

Signup and view all the flashcards

Pediatric Labs

Perform newborn screening and promptly follow up on abnormal results.

Signup and view all the flashcards

Hypothyroid Adherance

Adhere to lifelong and necessary meds consistently.

Signup and view all the flashcards

Hypothyroid and Heart

Start with lower doses to avoid cardiovascular issues or angina.

Signup and view all the flashcards

Older Hypothyroid

Use lower doses to reduce fracture and heart risk. Bone problems occur.

Signup and view all the flashcards

Study Notes

  • The lecture covers differentiating between Type I & II diabetes

Age of Onset - Diabetes Types I & II

  • Type 1 diabetes usually begins in childhood or adolescence
  • Type 2 diabetes can start at any age, but typically after 40 and more frequently in younger people

Pathophysiologic Mechanism - Diabetes Types I & II

  • Type 1 diabetes is an autoimmune condition where the body attacks and destroys insulin-producing beta cells, causing an absolute insulin deficiency
  • Type 2 diabetes involves insulin resistance and relative insulin deficiency, where the body doesn't produce enough insulin or cells don't respond properly

Typical Treatment Agents - Diabetes Types I & II

  • Type 1 diabetes' primary treatment is insulin therapy due to the body's inability to produce insulin

Insulin Types

  • Rapid-acting insulin (lispro, aspart) is taken before meals to manage blood sugar spikes
  • Short-acting insulin (regular insulin) is taken 30-60 minutes before meals
  • Intermediate-acting insulin (NPH insulin) covers insulin needs for about half a day or overnight
  • Long-acting insulin (glargine, detemir) provides a steady insulin level throughout the day
  • Ultra-long-acting insulin (degludec) lasts for over 24 hours

Other Treatments

  • Amylinomimetics (Pramlintide) is used to control blood sugar after meals

Type 2 Diabetes Management

  • Treatment often involves lifestyle changes and oral medications, potentially progressing to injectable medications

Common Treatment Agents - Type 2 Diabetes

  • Metformin decreases liver glucose production and improves insulin sensitivity
  • Sulfonylureas (glipizide, glyburide) stimulates the pancreas to release more insulin
  • Meglitinides (repaglinide) stimulates insulin release faster than sulfonylureas
  • Thiazolidinediones (pioglitazone) improves insulin sensitivity
  • DPP-4 Inhibitors (sitagliptin) increases insulin release and decreases glucagon levels
  • SGLT2 Inhibitors (canagliflozin) helps the kidneys remove glucose from the bloodstream
  • GLP-1 Receptor Agonists (liraglutide) increases insulin secretion and decreases appetite
  • Insulin may be required if other medications are insufficient to control blood sugar

Glycosylated Hemoglobin (Hemoglobin A1C)

  • A1C is a blood test that measures average blood sugar levels over the past 2-3 months

A1C Levels

  • Normal A1C is below 5.7%
  • Prediabetes A1C is between 5.7% and 6.4%
  • Diabetes A1C is 6.5% or higher
  • A1C goals greater than 7% may be more suitable than goals less than 7% for Type 2 diabetes

Treatment Goal

  • The general A1C target for most adults with diabetes is

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

Related Documents

More Like This

Use Quizgecko on...
Browser
Browser