Which insulin type has a peak between 4-8 hours?

Intermediate-acting insulin is characterized by its peak action occurring between 4 to 8 hours after administration. This type of insulin is typically used to manage blood glucose levels throughout the day. It is designed to provide a sustained level of insulin, often covering meals and providing a baseline level of insulin for fasting periods.

In contrast, short-acting insulin tends to have a peak effect much sooner, generally within 2 to 4 hours. Long-acting insulin has a more gradual onset and does not typically peak, providing steady insulin levels for up to 24 hours or longer. Very long-acting insulin, similar to long-acting insulin, also aims to maintain a flat basal background without a distinct peak.

Thus, the distinctive peak time of intermediate-acting insulin clearly sets it apart from other types of insulin, confirming it as the correct choice in this scenario.