Which one of the following water emergencies can cause permanent blindness or deafness if the victim ...

Which one of the following water emergencies can cause permanent blindness or deafness if the victim is not immediately cared for at a medical facility?
 
  A) barotrauma
  B) air embolism
  C) decompression sickness
  D) hypothermia

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Wet drowning occurs when a severe muscle spasm of the larynx cuts off respirations; additionally, it does not allow for aspiration of a significant amount of fluid into the lungs.
 
  Indicate whether the statement is true or false.

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All of the following are signs and symptoms of air embolism except:
 
  A) frothy blood in the nose and mouth.
  B) loss or distortion of memory.
  C) swelling and crepitus in the neck.
  D) inability to void the bladder.

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A diving emergency that generally occurs because of holding one's breath is:
 
  A) barotrauma.
  B) air embolism.
  C) decompression sickness.
  D) hydraulic compression.

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Which one of the following deepwater diving emergencies has a gradual onset?
 
  A) air embolism
  B) decompression sickness
  C) barotrauma
  D) hydraulic compression