Divers that ascend too rapidly can develop which condition?

Divers that ascend too rapidly can develop which condition?

• A. Air Embolism
• B. Decompression Sickness
• C. Nitrogen Narcosis
• D. Oxygen Toxicity

Answer: (D)

Ascending rapidly lowers the surrounding pressure and causes the dissolved nitrogen in your tissues and blood to come out of solution as bubbles. These bubbles can obstruct blood flow and damage tissues, leading to decompression sickness. The symptoms vary—from joint and muscle pain to skin changes, numbness, confusion, or weakness—depending on where the bubbles form and travel. This is why rapid ascent is classically linked to decompression sickness, and why treatment focuses on recompression in a hyperbaric chamber with high-flow oxygen. Oxygen toxicity isn’t the usual consequence of a quick ascent. It requires exposure to a high partial pressure of oxygen for a prolonged period, typically encountered with certain deep or long-duration dives using oxygen-rich gas—so rapid ascent alone doesn’t cause it. Nitrogen narcosis occurs at depth due to nitrogen’s narcotic effect under high pressure and resolves with ascent. Air embolism can occur if the ascent is accompanied by breath-holding and lung overexpansion, but the general risk from rapid ascent is decompression sickness.

Ascending rapidly lowers the surrounding pressure and causes the dissolved nitrogen in your tissues and blood to come out of solution as bubbles. These bubbles can obstruct blood flow and damage tissues, leading to decompression sickness. The symptoms vary—from joint and muscle pain to skin changes, numbness, confusion, or weakness—depending on where the bubbles form and travel. This is why rapid ascent is classically linked to decompression sickness, and why treatment focuses on recompression in a hyperbaric chamber with high-flow oxygen.

Oxygen toxicity isn’t the usual consequence of a quick ascent. It requires exposure to a high partial pressure of oxygen for a prolonged period, typically encountered with certain deep or long-duration dives using oxygen-rich gas—so rapid ascent alone doesn’t cause it. Nitrogen narcosis occurs at depth due to nitrogen’s narcotic effect under high pressure and resolves with ascent. Air embolism can occur if the ascent is accompanied by breath-holding and lung overexpansion, but the general risk from rapid ascent is decompression sickness.