Pharmacology II: Insulin Resistance and Diabetes
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Questions and Answers

What is the benefit of taking medication with a meal?

  • It minimizes discomfort (correct)
  • It increases the risk of hypoglycemia
  • It stimulates insulin secretion
  • It slows carbohydrate absorption

What is the mechanism of action of sulfonylureas?

  • They slow carbohydrate absorption in the small intestine
  • They increase insulin resistance
  • They stimulate the pancreas to secrete insulin (correct)
  • They reduce insulin secretion

Why must patients taking sulfonylureas be counseled about hypoglycemia?

  • Because they can cause kidney disease
  • Because they can cause flatulence
  • Because they can cause liver disease
  • Because they can cause hypoglycemia (correct)

In which patients are sulfonylureas contraindicated?

<p>Patients with advanced kidney or liver disease (C)</p> Signup and view all the answers

What is the mechanism of action of α-glucosidase inhibitors?

<p>They slow carbohydrate absorption in the small intestine (A)</p> Signup and view all the answers

What side effect is commonly associated with α-glucosidase inhibitors?

<p>Flatulence, bloating, abdominal discomfort, or diarrhea (D)</p> Signup and view all the answers

What is the primary site of insulin resistance in type 2 diabetes?

<p>Liver, muscle, and fat tissue (A)</p> Signup and view all the answers

What is the initial response of the body to insulin resistance?

<p>To increase insulin secretion by pancreatic β-cells (A)</p> Signup and view all the answers

What is the effect of metformin on hepatic glucose production?

<p>It reduces hepatic glucose production (D)</p> Signup and view all the answers

What is the benefit of metformin therapy in terms of insulin levels?

<p>It does not affect insulin levels (B)</p> Signup and view all the answers

What is a common adverse effect of metformin therapy?

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

Why do patients treated with metformin monotherapy face little risk of hypoglycemia?

<p>Because metformin has no effect on β-cells (D)</p> Signup and view all the answers

What is the primary effect of α-glucosidase inhibitors on carbohydrate absorption?

<p>They slow down carbohydrate absorption (C)</p> Signup and view all the answers

What is the primary reason why patients taking α-glucosidase inhibitors require treatment with glucose during hypoglycemia?

<p>Because foods containing complex carbohydrates are ineffective (A)</p> Signup and view all the answers

What is the function of incretins in the body?

<p>To stimulate the production of insulin when it is needed (A)</p> Signup and view all the answers

What is the effect of DPP-4 inhibitors on weight loss?

<p>They help with weight loss (D)</p> Signup and view all the answers

What is the primary role of DPP-4 in the body?

<p>To destroy a group of gastrointestinal hormones called incretins (C)</p> Signup and view all the answers

What is a potential side effect of DPP-4 inhibitors?

<p>Higher rates of pancreatitis (D)</p> Signup and view all the answers

Which medication is an example of a DPP-4 inhibitor?

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

What is the effect of incretins on glucagon production?

<p>They reduce the production of glucagon when it is not needed (D)</p> Signup and view all the answers

What is the primary consequence of insulin resistance in type 2 diabetes?

<p>Elevated blood glucose levels, especially after meals (B)</p> Signup and view all the answers

What is the effect of metformin on pancreatic β-cells?

<p>It has no effect on insulin secretion (A)</p> Signup and view all the answers

Why do patients with type 2 diabetes experience hunger despite high blood glucose levels?

<p>Their cells are not receiving enough fuel (A)</p> Signup and view all the answers

What is the primary mechanism of action of biguanides like metformin?

<p>Preventing the liver from converting fats and amino acids into glucose (C)</p> Signup and view all the answers

What is a common side effect of metformin therapy?

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

What is the primary reason why metformin is effective in normalizing blood glucose levels?

<p>It reduces hepatic glucose production (A)</p> Signup and view all the answers

What is the primary effect of sulfonylureas on the pancreas?

<p>To stimulate insulin secretion (A)</p> Signup and view all the answers

What is a common adverse effect of sulfonylureas?

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

What is the primary site of action of α-glucosidase inhibitors?

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

Why are sulfonylureas contraindicated in patients with advanced kidney or liver disease?

<p>Because they can exacerbate existing kidney or liver disease (B)</p> Signup and view all the answers

What is the onset of action of sulfonylureas?

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

What should patients taking sulfonylureas be counseled about?

<p>The signs and symptoms of hypoglycemia (D)</p> Signup and view all the answers

What is the reason why foods containing complex carbohydrates are ineffective in treating hypoglycemia in patients taking α-glucosidase inhibitors?

<p>Because α-glucosidase inhibitors slow carbohydrate absorption (D)</p> Signup and view all the answers

What is the primary action of incretins on insulin and glucagon production?

<p>They stimulate insulin production and decrease glucagon production (B)</p> Signup and view all the answers

What is the consequence of DPP-4 inhibitors on gastrointestinal hormones?

<p>They destroy a group of gastrointestinal hormones called incretins (C)</p> Signup and view all the answers

What is the effect of α-glucosidase inhibitors on the body's carbohydrate absorption?

<p>They slow carbohydrate absorption (D)</p> Signup and view all the answers

Why are DPP-4 inhibitors associated with higher rates of pancreatitis?

<p>Because they are linked to higher rates of pancreatitis (B)</p> Signup and view all the answers

What is the primary effect of incretins on digestion?

<p>They slow down digestion (B)</p> Signup and view all the answers

What is the effect of DPP-4 inhibitors on appetite?

<p>They decrease appetite (D)</p> Signup and view all the answers

What is the treatment required for patients who develop hypoglycemia while taking α-glucosidase inhibitors?

<p>Treatment with glucose (C)</p> Signup and view all the answers

What is the primary site of insulin resistance in type 2 diabetes?

<p>Liver, muscle, and fat tissue (D)</p> Signup and view all the answers

What is the effect of metformin on the body's fuel supply?

<p>Decreases glucose levels in the body's cells (C)</p> Signup and view all the answers

What is the role of metformin in improving insulin sensitivity?

<p>It enhances insulin sensitivity in muscle, fat, and liver tissues (B)</p> Signup and view all the answers

Why do patients with type 2 diabetes experience hunger despite high blood glucose levels?

<p>Because the body's cells are not receiving enough fuel (D)</p> Signup and view all the answers

What is the primary mechanism by which metformin reduces hepatic glucose production?

<p>By preventing the liver from converting fats and amino-acids into glucose (B)</p> Signup and view all the answers

What is the benefit of metformin therapy in terms of hypoglycemia risk?

<p>It decreases the risk of hypoglycemia (D)</p> Signup and view all the answers

What is the primary mechanism of action of sulfonylureas in the body?

<p>Stimulating the pancreas to secrete insulin (A)</p> Signup and view all the answers

What is a common side effect of α-glucosidase inhibitors?

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

Why should patients taking sulfonylureas be cautious when skipping or delaying meals?

<p>To minimize the risk of hypoglycemia (D)</p> Signup and view all the answers

What is the benefit of sulfonylureas in terms of their onset of action?

<p>They have a quick onset of action (C)</p> Signup and view all the answers

In which patients are sulfonylureas contraindicated?

<p>Patients with advanced kidney or liver disease (C)</p> Signup and view all the answers

What is the primary effect of α-glucosidase inhibitors on the body's glucose levels?

<p>They slow carbohydrate absorption (D)</p> Signup and view all the answers

What is the primary action of α-glucosidase inhibitors?

<p>Slowing carbohydrate absorption (C)</p> Signup and view all the answers

What is the mechanism of action of DPP-4 inhibitors?

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

Why are DPP-4 inhibitors linked with weight loss?

<p>They slow digestion and decrease appetite (A)</p> Signup and view all the answers

What is the treatment required for patients who develop hypoglycemia while taking α-glucosidase inhibitors?

<p>Glucose tablets or gel (D)</p> Signup and view all the answers

What is the primary role of incretins in the body?

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

What is the consequence of DPP-4 enzyme activity?

<p>Destruction of incretins (D)</p> Signup and view all the answers

What is the effect of α-glucosidase inhibitors on blood glucose levels?

<p>No effect on blood glucose levels (D)</p> Signup and view all the answers

What is the potential side effect of DPP-4 inhibitors?

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

What is the primary response of the body to insulin resistance in type 2 diabetes?

<p>Boosted insulin secretion by pancreatic β-cells (A)</p> Signup and view all the answers

What is the primary mechanism by which metformin acts to improve insulin action?

<p>Preventing the liver from converting fats and amino-acids into glucose (C)</p> Signup and view all the answers

Why do patients with type 2 diabetes experience hunger despite high blood glucose levels?

<p>Because the body cells don't receive enough fuel (A)</p> Signup and view all the answers

What is a common adverse effect of metformin therapy?

<p>Abdominal discomfort, stomach upset, diarrhea, anorexia, and stomach fullness (B)</p> Signup and view all the answers

What is the primary consequence of insulin resistance in type 2 diabetes?

<p>Increased blood glucose levels, especially after meals (C)</p> Signup and view all the answers

What is the effect of metformin on pancreatic β-cells?

<p>Has no effect on insulin levels (C)</p> Signup and view all the answers

What is the primary benefit of taking sulfonylureas in patients with type 2 diabetes?

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

What is the primary reason why patients taking sulfonylureas should be cautious when skipping or delaying meals?

<p>They may develop hypoglycemia (B)</p> Signup and view all the answers

What is the primary effect of α-glucosidase inhibitors on the body?

<p>They slow down carbohydrate absorption in the small intestine (C)</p> Signup and view all the answers

Why are sulfonylureas contraindicated in patients with advanced kidney or liver disease?

<p>They may be metabolized improperly in these patients (D)</p> Signup and view all the answers

What is a common side effect of taking α-glucosidase inhibitors?

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

What is the primary benefit of sulfonylureas in terms of their onset of action?

<p>They have a quick onset of action (B)</p> Signup and view all the answers

What is the effect of α-glucosidase inhibitors on carbohydrate absorption?

<p>Decrease carbohydrate absorption (A)</p> Signup and view all the answers

What is the primary role of DPP-4 in the body?

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

What is the effect of DPP-4 inhibitors on insulin and glucagon production?

<p>Increase insulin production and decrease glucagon production (C)</p> Signup and view all the answers

Why are DPP-4 inhibitors linked with weight loss?

<p>Because they slow down digestion and decrease appetite (D)</p> Signup and view all the answers

What is the primary effect of α-glucosidase inhibitors on blood glucose levels?

<p>Have no direct effect on blood glucose levels (B)</p> Signup and view all the answers

What is the reason why foods containing complex carbohydrates are ineffective in treating hypoglycemia in patients taking α-glucosidase inhibitors?

<p>Because α-glucosidase inhibitors slow down carbohydrate absorption (D)</p> Signup and view all the answers

What is the effect of incretins on digestion?

<p>Slow down digestion (A)</p> Signup and view all the answers

What is a common side effect of DPP-4 inhibitors?

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

Flashcards

Medication with a meal

It minimizes discomfort from the medication.

Sulfonylureas mechanism

They stimulate the pancreas to secrete insulin.

Hypoglycemia counseling for sulfonylureas

Patients are at risk of low blood sugar levels.

Sulfonylureas contraindications

Contraindicated in patients with advanced kidney or liver disease.

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α-glucosidase inhibitors action

They slow carbohydrate absorption in the small intestine.

Signup and view all the flashcards

Common side effect of α-glucosidase inhibitors

Flatulence, bloating, abdominal discomfort, or diarrhea.

Signup and view all the flashcards

Insulin resistance in type 2 diabetes

Primarily occurs in liver, muscle, and fat tissue.

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Body's response to insulin resistance

To increase insulin secretion by pancreatic β-cells.

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Metformin effect on hepatic glucose production

It reduces hepatic glucose production.

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Metformin and insulin levels

It does not affect insulin levels directly.

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Adverse effect of metformin

Commonly causes abdominal discomfort.

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Low hypoglycemia risk with metformin

No effect on β-cells means lower risk of hypoglycemia.

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Primary effect of α-glucosidase inhibitors

They slow down carbohydrate absorption.

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Treating hypoglycemia with α-glucosidase inhibitors

Requires treatment with glucose for hypoglycemia.

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Incretins function

Stimulate insulin production when needed.

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DPP-4 inhibitors and weight loss

DPP-4 inhibitors help with weight loss.

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Role of DPP-4 in the body

Destroys incretins which help with insulin production.

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Potential side effect of DPP-4 inhibitors

Higher rates of pancreatitis are possible.

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Example of DPP-4 inhibitor

Sitagliptin is an example of this drug class.

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Effect of incretins on glucagon

They reduce glucagon production when unnecessary.

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Insulin resistance consequence

Elevated blood glucose levels, particularly after meals.

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Metformin and pancreatic β-cells

It has no direct effect on insulin secretion from these cells.

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Hunger in type 2 diabetes despite high blood glucose

Cells aren’t receiving enough fuel, leading to hunger.

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Biguanides like metformin action

Prevent liver from converting fats and amino acids into glucose.

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Metformin and hypoglycemia risk

It decreases the risk of hypoglycemia.

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Sulfonylureas action on pancreas

Stimulate insulin secretion from the pancreas.

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Adverse effect of sulfonylureas

Hypoglycemia is a common adverse effect.

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α-glucosidase inhibitors action site

They act primarily in the small intestine.

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Sulfonylureas in kidney or liver disease

Contraindicated as they can worsen these conditions.

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Onset of sulfonylureas

They have a quick onset of action.

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Counseling for sulfonylureas

Patients should know signs and symptoms of hypoglycemia.

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Complex carbohydrates in hypoglycemia

Foods with them are ineffective for treating hypoglycemia with α-glucosidase inhibitors.

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Incretins effect on insulin and glucagon

They stimulate insulin production and decrease glucagon production.

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DPP-4 inhibitors and gastrointestinal hormones

They destroy a group of gastrointestinal hormones called incretins.

Signup and view all the flashcards

Effect of α-glucosidase inhibitors on absorption

They slow carbohydrate absorption in the body.

Signup and view all the flashcards

DPP-4 inhibitors and pancreatitis

These inhibitors are linked to higher rates of pancreatitis.

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Incretins effect on digestion

They slow down digestion within the body.

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DPP-4 inhibitors effect on appetite

They decrease appetite in patients.

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Hypoglycemia treatment with α-glucosidase inhibitors

Requires glucose treatment during episodes.

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