Austere fluid resuscitation

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Background

Shock Index (SI)

SI = HR / SBP

  • Used when HR and SBP do not predict severity of hypovolemia in early stages
  • May be used as secondary triage tool in major incidence[1]
  • 0.5-0.7 is normal
  • >0.70-0.75 for occult shock or requirement of life-saving intervention

Sources

  • Levitan, Richard M. Fundamentals of Airway Management. 3rd ed. Irving, TX: Emergency Medicine Residents' Association, 2015.

</references>

  1. Vassallo J et al. Usefulness of the Shock Index as a secondary triage tool. J R Army Med Corps. 2015 Mar;161(1):53-7.