Final answer:
The correct precaution to take when drawing up regular insulin and NPH together is to draw up NPH first, then regular insulin.
Step-by-step explanation:
When drawing up regular insulin and NPH together, what precaution should be taken?
The correct precaution to take when drawing up regular insulin and NPH together is to draw up NPH first, then regular insulin. This is important because NPH insulin is cloudy and needs to be mixed properly before use, while regular insulin is clear. Drawing up the NPH insulin first ensures that it is properly mixed and helps prevent incorrect dosing.