What are the signs of hemodynamic compromise in lower gastrointestinal (GI) bleeding (LGIB)?

Updated: Jul 26, 2019
  • Author: Burt Cagir, MD, FACS; Chief Editor: BS Anand, MD  more...
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Signs of hemodynamic compromise include postural changes with dyspnea, tachypnea, and tachycardia. An orthostatic drop in systolic blood pressure of more than 10 mm Hg or an increase in heart rate of more than 10 beats per minute is indicative of at least 15% of blood volume loss. Severe postural dizziness with a postural pulse increase of at least 30 beats per minute is a sensitive and specific indicator of acute blood loss of more than 630 mL. [27]

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