SDI Open Water Scuba Diver Practice Exam

Which of the following is among the best ways to prevent decompression sickness?

1. Stay within dive computer no-decompression limit

2. Ascend no faster than the rate allowed

3. Make safety stops

4. All the above

The correct answer is: All the above

One of the most effective strategies for preventing decompression sickness, commonly known as "the bends," involves adhering to several key practices during diving. Staying within the dive computer's no-decompression limit is crucial because these limits are calculated to minimize the risk of nitrogen bubbles forming in the bloodstream during ascent. Ascending no faster than the recommended rate is equally important; rapid ascents can increase the likelihood of inert gas bubbles forming, which increases the risk of decompression sickness. Making safety stops during ascent is an additional precaution that allows extra time for the body to off-gas nitrogen safely, further reducing the risk of decompression sickness. By emphasizing the importance of all these practices, it becomes clear that comprehensive adherence to safe diving protocols is the best approach for preventing decompression sickness. Therefore, acknowledging all these measures collectively ensures divers maintain the highest safety standards while enjoying their underwater experiences.