October 17, 2016

Definition: A life-threatening emergency in which there is a failure of the body’s thermoregulatory mechanisms to handle extrinsic and intrinsic heat. The failure of thermoregulation leads to multi-system organ dysfunction characterized by alteration of neurologic function. Unlike in fever, hyperthermia is not caused by endogenous pyrogens that change the thermoregulation set point in the brain. Hyperthermia results from excessive heat production and/or inadequate heat dissipation

August 12, 2015

This post is meant to accompany the REBEL Cast episode on The Crashing Asthmatic from June 2015. This blog post will also be simultaneously posted on the Core EM site here. Come over and check out our core content offerings. Thanks to the REBEL team for continuing to promote our site!

Definition: An episode of wheezing, chest tightness or coughing resulting from variable airflow obstruction that is reversible. Underlying exacerbations are a chronic inflammatory disorder of the airways.

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 www.coreem.net 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.).

February 15, 2014

Electrocardiography is a fundamental part of cardiovascular assessment. It is an essential tool for investigating cardiac arrhythmias and ischemia. Just because electrocardiography is a basic skill in EM doesn't mean that our skills should be basic...we must be the EXPERTS! Below is a summary of some ECG basics including:
  • ECG Measurements
  • ECG Rate
  • ECG Axis