The Nurse Is Caring for a Renal Transplant Recipient in the Postanesthesia

The nurse is caring for a renal transplant recipient in the postanesthesia care unit (PACU) .One hour after the transplant recipient was admitted to the PACU,the RN notes the patient's blood pressure has dropped to 82/60 mm Hg and the pulse is 138 beats/min.Which physician order should the nurse implement first?

A) Administer an extra dose of the ordered pain medication.
B) Administer a 500-mL bolus of 0.9% normal saline intravenously stat.
C) Irrigate the indwelling urinary catheter gently with 30 mL 0.9% normal saline.
D) Provide maintenance IV fluids of D5 0.45% normal saling to infuse at 100 mL/hr.