Practice Quiz

Emergency Medicine Test Prep

Category - Head, Facial, Neck, and Spine Trauma

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Which one of the following is true regarding the Pathophysiology of eardrum rupture in barotraumas?
  1. eardrum rupture is due to Sudden changes in pressure
  2. eardrum rupture is due to Sudden changes in temperature
  3. Both A and B
  4. None of them
Explanation
Answer: A - In order to maintain equal pressure on both sides of the tympanic membrane , gas must move freely between the nasopharynx and middle ear. When a URI, allergy, or other mechanism interferes with Eustachian tube functioning during changes in environmental pressure, the pressure in the middle ear either falls below ambient pressure, causing retraction of the TM, or rises above it, causing bulging and rupture
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