What is the peak duration of Regular Insulin?

The peak duration of Regular Insulin is indeed 2-4 hours. Regular Insulin is a short-acting insulin that begins to work within 30 minutes after administration, reaches its peak effect around 2 to 4 hours post-injection, and lasts for about 6 to 8 hours in the body. This characteristic makes Regular Insulin particularly useful for controlling blood sugar levels during mealtimes, as it aligns well with the rise in blood glucose that occurs after eating.

Understanding the peak action time is crucial for both patients and healthcare providers when planning meals and managing blood glucose levels effectively. The other options suggest peak durations that are either too short or too long compared to the established pharmacokinetics of Regular Insulin.