A 58-year-old with cirrhosis and hematemesis arrives pale an…
A 58-year-old with cirrhosis and hematemesis arrives pale and clammy. Two large-bore IVs are placed; octreotide is started; 1 L LR given and 1 unit PRBCs is infusing. Current data: BP 85/50 mm Hg, HR 118/min, RR 24/min, SpO₂ 96% on 2 L NC, urine output 10 mL in the last hour. Which bedside measurement signals the need for the most immediate intervention?