HESI Gerontology Practice Test 2026 – Full Study Guide for Age-Related Risks Exam

Glargine is a basal, long-acting insulin designed to provide a steady insulin level over a full day. Its action profile is flat, with no pronounced peak, which helps mimic natural background insulin and reduces the risk of nocturnal hypoglycemia. It is not a meal-time, rapid-acting insulin and is not given to cover meals. The idea that it peaks several hours after administration doesn’t apply to glargine, because its peak is minimal. It can be used in both type 1 and type 2 diabetes to provide baseline insulin, typically once daily at the same time each day (and sometimes twice daily if needed).