Which option is NOT listed as a typical sign of decompression illness after ascent?

• A. Joint pain
• B. Numbness
• C. Headache
• D. Skin rash

Answer: (C)

The main idea is telling signs apart from symptoms when evaluating decompression illness after ascent. Signs are observable, objective indicators seen by others, while symptoms are subjective experiences reported by the diver.

Joint pain is a classic observable sign of decompression illness, often called “the bends.” Numbness or tingling is another clear sign that can be detected during assessment. A skin rash or mottling can also be seen on the diver’s skin and is considered a sign. Headache, on the other hand, is something the diver feels and reports rather than something another person can observe directly, so it’s categorized as a symptom rather than a sign.

So, while headache is a common complaint in decompression illness, it’s not typically listed as a sign, which is why it’s the best answer to the question. In any case, treat suspected decompression illness promptly with high-flow oxygen and appropriate medical care.