Template:Shock index

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Shock index (SI)[1]

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 mass casualty incidents[2]
  • 0.5-0.7 is normal
  • >0.70-0.75 for occult shock or requirement of life-saving intervention


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