Shock index in diagnosing early acute hypovolemia.

  title={Shock index in diagnosing early acute hypovolemia.},
  author={Robert H. Birkhahn and Theodore J. Gaeta and D. R. Terry and Joseph John Bove and John Tloczkowski},
  journal={The American journal of emergency medicine},
  volume={23 3},
OBJECTIVE The aim of this study was to determine the hemodynamic response and calculated shock index (SI=heart rate [HR]/systolic blood pressure [SBP]) in early acute blood loss. METHODS This was a prospective observational study that enrolled healthy blood donors. Patients were excluded if not eligible for blood donation. Baseline vital signs were obtained, 450 mL of blood was removed over 20 minutes, and vital signs were repeated immediately postdonation while lying and after 1 and 5… CONTINUE READING

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