Which of the following is the correct process for drawing up insulin?

The correct process for drawing up insulin involves understanding the proper sequence to prevent contamination of the insulin vials and ensure accurate dosing. Drawing up NPH (N) insulin before regular (R) insulin is essential because NPH is a suspension, and if it is drawn up first, it can introduce particles into the regular insulin, compromising its clarity and function. By drawing up the NPH first, you prevent any potential contamination of the clear regular insulin vial.

This order of drawing up insulin types is critical for maintaining the integrity of the insulin preparations and avoiding any adverse effects that could occur from incorrect mixing. The technique emphasizes the importance of maintaining sterility and ensuring that the regular insulin, which should remain clear, is not clouded by the NPH. This practice ultimately ensures safe and effective diabetes management for patients.