Shock index: Difference between revisions
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==See Also== | ==See Also== | ||
*[[Austere fluid resuscitation]] | *[[Austere fluid resuscitation]] | ||
*[[Shock]] | |||
==References== | ==References== | ||
Latest revision as of 20:27, 4 July 2016
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
Simple Shock Index (sSI) was recently proposed. Subtracting SBP from HR is a good SI substitute. Working with integers is easier than dividing them, improving value availability.[3]
See Also
References
- ↑ Levitan, Richard M. Fundamentals of Airway Management. 3rd ed. Irving, TX: Emergency Medicine Residents' Association, 2015.
- ↑ 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.
- ↑ Kamikawa Y, Hayashi H. Equivalency between the shock index and subtracting the systolic blood pressure from the heart rate: an observational cohort study. BMC Emergency Medicine. 2020 Dec;20:1-8.