单选题 The nurse preparing to give a child an intramuscular injection chooses to give the injection into the gluteal muscle. The site is acceptable because which of the following reasons?
A. The child has been walking for 1 year.
B. The child has small deltoid muscles.
C. The child is older than 2 years.
D. The child weighs more than 25 pounds.

【正确答案】 A

【答案解析】Muscle mass determines whether or not a muscle can be safely used as an injection site. The gluteal muscle enlarges in response to use in walking. After the child has been walking for a year, it should be safe to use the gluteus maximus for injections.