The United States Food and Drug Administration (2010) stated that there are different types of insulin are rapid-acting, regular/short-acting insulin, intermediate-acting, intermediate-acting insulin, and long-acting insulin. Rapid- acting insulin does as the name says. It works pretty quickly after it is injected. Once it peaks, it stays active in the body for a few hours. Regular insulin will enter the bloodstream about 30 minutes after it is injected, stated the United States Food and Drug Administration (2010). It takes about 2 or 3 hours for it to peak, and stays active within the body for anywhere between 3 to 6 hours. Intermediate- acting insulin will enter the bloodstream between 2 to 4 hours after it is administered. It can have a
