The nurse is caring for a patient who has undergone major abdominal surgery. 4 hours post-op Urine output 45 mL/hr BP 120/80 mm Hg HR 90 beats/min Weight 97.5 kg 24 hours post-op Urine output 20 mL/hr for past 2 hours BP 100/60 mm Hg HR 110 beats/min Weight 99 kg According to the 4-hour post-op assessment data and the 24-hour assessment data, the nurse should:

A. Wait until the provider makes rounds to report the assessment findings: Delaying communication could allow worsening hypovolemia and renal compromise. Early intervention is critical when urine output decreases and vital signs indicate possible shock. B. Contact the provider and expect a prescription for a normal saline bolus: The patient shows signs of hypovolemia, including decreased urine output, hypotension, tachycardia, and rapid weight gain suggestive of fluid shifts or third-spacing. Administering IV fluids such as a normal saline bolus helps restore circulating volume and organ perfusion. C. Continue to evaluate urine output for 2 more hours: Waiting longer without intervention risks further renal injury and worsening hemodynamic instability. Prompt assessment and notification are essential for patient safety. D. Ignore the urine output, as this is most likely postrenal in origin: There is no evidence of urinary obstruction, and the decrease in urine output correlates with hypotension and tachycardia, indicating prerenal hypoperfusion rather than postrenal causes.