The Nursing Coach on Instagram: "## Understanding Insulin N and Insulin R ## Insulin Basics Insulin is a hormone that regulates blood sugar levels. There are several types of insulin, each with its own unique characteristics. ## Insulin R (Regular Insulin) 1. *Short-acting insulin*: Begins working within 30 minutes to 1 hour after administration. 2. *Peak action*: Reaches its maximum effect in 2-3 hours. 3. *Duration*: Lasts for 5-7 hours. 4. *Use*: Often used for mealtime dosing or correcting h