The nurse is admitting a client from the postanesthesia care unit (PACU) to the postoperative surgical care unit. Which prescription should the nurse implement first?

A. Advance from clear liquids as tolerated: Resuming oral intake is important for recovery but can be delayed until critical tasks like infection prevention are addressed immediately after surgery. B. Cefazolin 1 gram IV every 6 hours: Administering prophylactic antibiotics like cefazolin early after surgery is crucial to prevent postoperative infections, making this the highest priority action upon admission. C. Complete blood cell count (CBC) in AM: A CBC is important for monitoring postoperative recovery but is a scheduled task for later and does not need to be prioritized over immediate interventions. D. Straight catheterization if unable to void: Monitoring for urinary retention is necessary, but catheterization is only performed if the client cannot void after a certain period, making it a lower immediate priority.