When preparing to give a child with insulin-dependent diabetes his dose of regular and NPH humulin insulin, which of the following actions would be most appropriate
A．Taking the premixed insulin out of the refrigerator, then withdrawing the amount into in one syringe.
B．Using two syringes, one for each type of insulin, and giving two injections.
C．Withdrawing the NPH insulin first, then withdrawing the regular insulin into one syringe.
D．Withdrawing the regular insulin first, then withdrawing the NPH insulin into one syringe.
参考答案：D
解析：Using only one syringe is recommended for the client taking regular insulin along with an intermediate-or long-acting insulin. Additionally, insulin types, such as protamine zinc, globin zinc, and NPH, contain an additional modifying protein that slows absorption. Therefore, a vial of insulin that does not contain the protein (ie, regular insulin) should never be contaminated with insulin that does have the added protein.