Practice Quiz

Emergency Medicine Test Prep

Category - Head, Facial, Neck, and Spine Trauma

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What causes eardrum to perforate?
  1. If the ear is struck directly With a skull fracture
  2. After a sudden explosion
  3. If an object (such as a bobby pin, Q-tip, or stick) is pushed too far into the ear canal
  4. All of the above
Explanation
Answer: D - Traumas by object or slapping may all cause rupture of tympanic membrane.
if an object is pushed too far into ear canal it can cause damage to eardrum and can perforate it
Spontaneous rupture of the eardrum, resulting in a perforation. In sudden explosion heavy frequency waves hit the eardrum and perforate it. In skull fracture forced is transmitted to eardrum with connected bones and causes rupture.
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