Rapid-acting insulin

Definition

Rapid-acting insulin is a type of insulin that starts to work within 15 minutes after injection, peaks in about 1 hour, and continues to be effective for 2 to 4 hours. It is commonly used to control blood sugar levels during meals and snacks and correct high blood sugar levels.

5 Must Know Facts For Your Next Test

1. Rapid-acting insulin includes types like insulin lispro, insulin aspart, and insulin glulisine.
2. It should be injected immediately before or after meals to manage postprandial blood glucose spikes.
3. Rapid-acting insulin mimics the body's natural response to food intake better than regular short-acting insulin.
4. It is often used in combination with longer-acting insulins for comprehensive diabetes management.
5. Patients using rapid-acting insulin must monitor their blood glucose levels closely to avoid hypoglycemia.

Review Questions

• What are the common types of rapid-acting insulin?
• When should rapid-acting insulin be administered in relation to meal times?
• Why is it important for patients on rapid-acting insulin to frequently monitor their blood glucose levels?

Related terms

Long-acting Insulin: Insulin that provides a steady level of insulin throughout the day and night with effects lasting up to 24 hours.

Insulin Pump:

A device that delivers continuous subcutaneous rapid or short-acting insulin infusion.

Hypoglycemia:

A condition characterized by abnormally low blood glucose levels, often caused by excessive doses of insulin or missed meals.