单选题 The nurse is caring for a client undergoing IV antibiotic therapy with gentamicin sulfate. Which of the following interventions is most important（）

A、 Infuse the medication quickly to minimize its irritating effect on the walls of blood vessels.
B、 Obtain renal function tests, such as blood urea nitrogen (BUN) and creatinine levels, throughout the course of therapy.
C、 Assess for pulmonary and peripheral edema.
D、 Obtain an order for an antiemetic to counteract the common adverse effect of nausea.

【正确答案】 B

【答案解析】Gentamicin sulfate is toxic to the kidneys. Monitoring BUN and creatinine levels during the course of therapy can identify nephrotoxicity before severe damage occurs. Be aware that gentamicin sulfate is also toxic to ears. Assessing for tinnitus, dizziness, vertigo, and hearing loss can prevent damage from ototoxicity. Gentamicin sulfate should be infused slowly. Nausea isn’t an adverse effect of IV gentamicin sulfate. Pulmonary and peripheral edema aren’t common adverse effects.