Final answer:
In summary, when drawing up two types of insulin, clear insulin should be drawn up before cloudy insulin to prevent contamination and ensure proper insulin action.
Step-by-step explanation:
When drawing up two types of insulin, it's important to follow the correct order to ensure their effectiveness and safety. You should always draw up the clear insulin (usually the rapid-acting or short-acting insulins) before the cloudy insulin (typically the intermediate or long-acting insulins). The reason for this sequence is to prevent contamination of the clear insulin with the protein in the cloudy insulin, which can affect the action of the insulin. Drawing up insulin correctly is essential for maintaining proper blood glucose levels as depicted in Graph-A, where insulin administration in individuals with insulin-dependent diabetes mellitus (IDDM) lowers blood glucose within an hour and then gradually returns to normal after about 2.5 hours.