Which of the following is NOT a sign of decompression sickness?

The correct response indicates that bright red skin coloration is not typically associated with decompression sickness. Decompression sickness, often referred to as "the bends," usually presents with symptoms that stem from nitrogen bubbles forming in the body's tissues or bloodstream after a rapid ascent from deep dives.

Common signs include joint pain, often described as "the bends," fatigue due to the body's stress response and potential oxygen deprivation, and dizziness, which can occur as a result of changes in pressure and the impact on bodily functions. Bright red skin coloration, however, is not a recognized symptom of decompression sickness. In fact, skin symptoms are more typically associated with conditions such as heat exhaustion or allergic reactions rather than the physiological changes occurring during decompression sickness.

Thus, by identifying bright red skin coloration as not a sign of decompression sickness, we distinguish it from the more recognized symptoms identified in the other options.