RT Book, Section A1 Panzer, Oliver A2 Lee, Kiwon SR Print(0) ID 1101644446 T1 Critical Care Ultrasound T2 The NeuroICU Book YR 2012 FD 2012 PB McGraw-Hill Education PP New York, NY SN 9780071636353 LK neurology.mhmedical.com/content.aspx?aid=1101644446 RD 2024/04/19 AB Fluid responsiveness. A 64-year-old man is admitted to the hospital with 2 days of worsening abdominal pain and intermittent fevers. He underwent a laparoscopic cholecystectomy. On postoperative day 1, the patient was hypotensive and oliguric. His blood pressure, heart rate, and urine output did not increase after administration of 3 L of lactated Ringer solution. His electrocardiogram showed a sinus rate of 120 bpm, his blood pressure was 89/45 mm Hg, and his central venous pressure was 12 mm Hg. Over the course of the morning, his mental status deteriorated, and his work of breathing increased. He was intubated and his lungs were mechanically ventilated. You are called by the resident physician in the postoperative anesthesia care unit and asked to guide further management.