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Wilderness: Decompression Illness

Decompression Illness Overview

Decompression illness can develop during scuba diving and occurs in the following circumstances:

  • When gas bubbles become entrapped in the body as a result of rapid ascent
  • After inadequate exhalation during ascent
  • When holding your breath during scuba diving
  • When air gets trapped in the lungs due to water inhalation or lung diseases

Risk factors for decompression illness include cold, stress, fatigue, dehydration, obesity, old age, exercise, flying after diving, rapid ascents, deep diving, and repetitive diving.

Two types of decompression sickness exist: Type I involves the muscles, skin, and lymphatics. Type II involves the brain, ears, and lungs (typically more serious).

Record all details of recent dive profiles.

To help prevent decompression illness, do not fly on an airplane for at least 12 hours after 2 hours of total dive time during the previous 2 days.

Decompression Illness Symptoms

Decompression Illness Treatment

  • Give 100% oxygen to a person with decompression illness.
  • If the person with decompression illness has nausea or is not fully conscious, place that person on his or her side.
  • Administer IV fluids if possible. Otherwise, administer sips of nonalcoholic, clear liquids as tolerated.
  • Administer CPR if necessary.

When to Seek Medical Care

  • Seek medical treatment in all cases of decompression illness.
  • Arrange hyperbaric oxygen treatment for a person with decompression illness as soon as possible (see diving emergency contacts).

Synonyms and Keywords

wilderness: decompression illness, decompression illness, CPR, hyperbaric oxygen treatment, scuba diving, the bends, decompression sickness

WebMD Medical Reference from eMedicineHealth

Reviewed by David T. Derrer, MD on May 06, 2014

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