May 25, 2015

Author's Note: This post is one of the first written for a new site sponsored by the NYU/Bellevue Emergency Department called Core EM. This is a FOAM site dedicated to core content Emergency Medicine featuring a blog, podcast and procedure video section. The Core EM Project launches on June 15th, 2015. Thanks to Salim and the REBEL EM editorial staff for posting this here. We'll make sure to let you all know when Core EM is up and running at Definition: Tissue hypoperfusion that is primarily attributable to damage to the heart. Criteria: The cardiology literature focuses diagnostic criteria based on systolic blood pressure (SBP) (Gowda 2008)
  • SBP < 90 mm Hg
  • Decrease in MAP by 30 mm Hg
It is more important, however, to look for evidence of hypoperfusion. In the acute setting, this will typically manifest as a change in mental status (lethargy, decreased responsiveness, agitation, decreased cap refill, cool extremeties etc.).