What is a common reason for prescribing rapid-acting insulin instead of other types?

Rapid-acting insulin is specifically formulated to address immediate increases in blood sugar levels that occur after meals. It is designed to start working quickly, typically within 15 minutes after injection, and its effects can last for a few hours. This makes it particularly useful for patients who need to manage the spikes in blood glucose that happen after eating, allowing for better postprandial (after-meal) blood sugar control.

This characteristic of rapid-acting insulin is essential for effective management of diabetes, as it helps prevent hyperglycemia following meals. Other types of insulin, such as long-acting insulin, are better suited for providing baseline insulin levels throughout the day and night but are not as effective in addressing the quick changes in blood sugar that occur with meal intake. Thus, using rapid-acting insulin is crucial for individuals who require immediate control over their blood glucose levels during meal times.