QMA Insulin Understanding Diabetes and Insulin 4

Question 1

What is the mechanism of action of rapid-acting insulin analogs such as insulin lispro?

Accepted Answer

They mimic the body's mealtime insulin response by acting quickly

Answer

They suppress glucagon secretion from alpha cells

Answer

They provide a steady background insulin level throughout the day

Answer

They stimulate the pancreas to produce more natural insulin

Question 2

Basal insulin is intended to do which of the following?

Accepted Answer

Provide a continuous low-level of insulin coverage over 24 hours

Answer

Provide a rapid spike to cover mealtime glucose rises

Answer

Suppress appetite to reduce carbohydrate intake

Answer

Correct high blood glucose emergencies immediately

Question 3

A resident's order reads: 'Give insulin glargine 20 units subcutaneously at bedtime.' What type of insulin is this?

Accepted Answer

Long-acting basal

Answer

Rapid-acting

Answer

Short-acting (regular)

Answer

Intermediate-acting (NPH)

Question 4

NPH insulin is classified as which type of insulin?

Accepted Answer

Intermediate-acting

Answer

Rapid-acting

Answer

Short-acting

Answer

Long-acting

Question 5

When mixing NPH and regular insulin in the same syringe, what is the correct order of withdrawal?

Accepted Answer

Draw regular insulin first, then NPH

Answer

Draw NPH first, then regular insulin

Answer

The order does not matter for safety

Answer

They should never be mixed in the same syringe

Question 6

Which statement about insulin storage is correct?

Accepted Answer

Unopened insulin should be refrigerated; in-use vials may be kept at room temperature for up to 28-30 days

Answer

All insulin vials must always be kept frozen

Answer

Insulin should be shaken vigorously before use to mix the solution

Answer

Insulin must be used within 3 days once opened

Question 7

A QMA notices that an insulin vial that should be clear appears cloudy. What is the appropriate action?

Accepted Answer

Do not use the vial and notify the nurse

Answer

Administer it since cloudiness is normal for all insulins

Answer

Roll the vial gently to mix it before drawing the dose

Answer

Shake the vial vigorously to clarify the solution