PADI Divemaster Certification Practice Exam

What should you recommend to a diver with suspected Type I DCS who wishes to sit up?

1. Let them sit up and make the call

2. Assist them in sitting up

3. Stay lying down and offer to call for them

4. Encourage them to move around to reduce symptoms

The correct answer is: Stay lying down and offer to call for them

When dealing with a diver who may have Type I Decompression Sickness (DCS), the priority is to minimize movement and avoid actions that could exacerbate the condition. The correct recommendation is to keep the diver lying down and offer to make the call for assistance. This choice reflects the fundamental principle of managing suspected DCS — keeping the diver stable and preventing further nitrogen bubbles from forming or expanding in the bloodstream. Sitting up can increase the risk of worsening symptoms or complications due to the changes in pressure dynamics within the body, which can occur if there is already a presence of nitrogen bubbles. By remaining in a horizontal position, the diver can minimize the potential for additional harm while waiting for professional medical help. Other options, such as letting them sit up; assisting them in sitting up; or encouraging movement, are not advised because they can lead to potential complications by increasing the risk of exacerbation of DCS symptoms. Maintaining a calm environment and limiting physical activity until a trained responder or medical professional can provide appropriate care is vital in these situations.