问题
单项选择题
The nurse plans to administer an injection of heparin to a client. Which of the following techniques for heparin administration is appropriate
A．Selects a 1.5-inch, 21-gauge needle for the injection.
B．Makes the injection into the deltoid muscle.
C．Applies gentle pressure to the site for 5 to 10 seconds after the injection.
D．Aspirates with the plunger to check for entry into the blood vessel before injecting the heparin.
答案
参考答案：C
解析：Gentle pressure should be applied after the injection, but the area must not be massaged.
