When preparing a client for a scheduled co
题型：单项选择题
问题：
When preparing a client for a scheduled colonoscopy, which of the following nursing interventions would the nurse include
A. Inserting a nasogastric tube 12 hours before the procedure.
B. Cleansing the bowel with laxatives or enemas.
C. Administering an antibiotic to decrease the risk of infection.
D. Spraying a local anesthetic into the client’s throat to calm the gag reflex.