Practice Quiz

CNOR Operating Room Nursing

Category - Intraoperative

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The light source on the end of an endoscope radiates heat in such a way as to reduce tissue damage at the tip of the scope. This type of light source is called:
  1. Cold light
  2. Distal lens
  3. Light connection
  4. Cold end
Explanation
Answer: A-The light source on the end of the endoscope is called cold light. This describes the fact that light used for visualizing structures does not transmit heat to the end of the scope. This reduces damage to internal structures by preventing the tip of the scope from becoming very hot.
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