问题
单项选择题
Which of the following factors would be most important in selecting the needle length to use for a subcutaneous injection of hydromorphone hydrochloride
A. The diameter of the needle.
B. The amount of adipose tissue at the administration site.
C. The amount of medication to be administered.
D. The viscosity of the solution to be injecte
答案
参考答案：B
解析：Needle length depends on the amount of adipose tissue at the site and the angle at which the injection is given.