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CRACKCast & Physicians as Humans on CanadiEM

CanadiEM aims to improve emergency care in Canada by building an online community of practice for healthcare practitioners and providing them with high quality, freely available educational resources. The CanadiEM Podcast brings you cutting edge clinical topics on the National Rounds Series and delves into the struggles that doctors face on the Physicians as Humans Series.

Jan 8, 2018

This episode of CRACKCast covers Chapter 134 of Rosen's Emergency Medicine (9th Ed.): Electrical and Lightning Injuries. 

Core questions:


  • What is the relationship between current, voltage and resistance?  How does this relate to potential for injury from electrical and lightning injuries?
  • What are the types of electrical injury? (based on type of current)
  • Differentiate between AC and DC current injuries.
  • List 4 types of electrical burns and 5 mechanisms of lightning injury
  • List 5 expected injury patterns for high-voltage and lightning injuries
  • List clinical findings (early and late) associated with electrical injuries.
  • List clinical findings associated with lightning exposure.
  • Describe the skin injuries associated with lightning and electricity.
  • Describe the modifications in field triage of multiple victims following a lightning strike.
  • Describe the prehospital management of electrical injuries
  • List 6 admission criteria for electrical/lightning injuries
  • List 6 complications of high-voltage injuries
  • Tips to avoid getting hit by lightning





  • List six mechanisms of lightning injury.
  • ECG features of lightning strike. 
  • What is keraunoparalysis?
  • Describe the management of a pregnant patient (1st trimester and 2nd /3rd trimester) in the setting of electrical injury.
  • How are perioral electrical burns managed? List three early and three late complications.