Which insulin category typically has the longest duration of action?

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Prepare for the AANP Adult Gerontology Primary Care Nurse Practitioner Test with our flashcards and multiple choice questions. Each question includes hints and explanations. Ensure success on your exam!

Lantus, also known as insulin glargine, is an insulin analog that is specifically designed to have a prolonged duration of action. It provides a steady release of insulin over a 24-hour period, which helps to maintain consistent blood glucose levels throughout the day and night. This long-lasting effect makes it particularly beneficial for patients who require basal insulin to manage their blood sugar effectively.

In contrast, other insulin types like Humalog (a rapid-acting insulin) are designed for quick onset and shorter duration, primarily used to control blood sugar spikes following meals. NPH (neutral protamine Hagedorn) is an intermediate-acting insulin that has a duration of action typically ranging from 10 to 16 hours, and Regular insulin has a shorter duration, usually around 6 to 8 hours, with a peak action that is also relatively brief. Thus, when considering the insulin categories, Lantus stands out for its extended period of action, making it the preferred choice for providing a baseline level of insulin.