Which action is NOT a recommended step for suspected decompression sickness?

Which action is NOT a recommended step for suspected decompression sickness?

• A. Activate EMS and contact DAN
• B. Monitor vital signs
• C. Return to the water to decompress
• D. Administer pure oxygen

Answer: (C)

Suspected decompression sickness should be treated as a medical emergency that requires professional evaluation and rapid oxygen therapy. The best course is to activate EMS and contact DAN so clinicians can guide treatment and arrange definitive care, monitor vital signs to detect any deterioration, and administer high-flow 100% oxygen to accelerate off-gassing of inert gas from the tissues. Keeping the diver still, comfortable, and warm helps prevent further stress and bubble movement. Returning to the water to decompress is not advised because attempting to re-ascend or re-enter depth does not reliably reduce bubbles and can worsen symptoms; decompression needs a controlled hyperbaric environment and medical evaluation.

Suspected decompression sickness should be treated as a medical emergency that requires professional evaluation and rapid oxygen therapy. The best course is to activate EMS and contact DAN so clinicians can guide treatment and arrange definitive care, monitor vital signs to detect any deterioration, and administer high-flow 100% oxygen to accelerate off-gassing of inert gas from the tissues. Keeping the diver still, comfortable, and warm helps prevent further stress and bubble movement. Returning to the water to decompress is not advised because attempting to re-ascend or re-enter depth does not reliably reduce bubbles and can worsen symptoms; decompression needs a controlled hyperbaric environment and medical evaluation.