Nitrogen bubbles in the bloodstream define which condition?

Nitrogen bubbles in the bloodstream define which condition?

• A. Decompression Sickness
• B. Radiation Exposure
• C. Near-Drowning
• D. Air Embolism

Answer: (A)

Rapid decompression causes dissolved nitrogen to come out of solution and form gas bubbles in the blood and tissues. These bubbles obstruct small vessels and damage the endothelium, triggering inflammation and tissue ischemia. This is classically seen in divers who ascend too quickly, leading to decompression sickness, sometimes called the bends. The bubbles can produce a range of symptoms from joint and muscle pain and itching to neurologic or chest symptoms depending on where they form. Treatment focuses on inhaling 100% oxygen and then hyperbaric recompression to shrink the bubbles and speed nitrogen elimination. Prevention centers on controlled ascent and proper decompression stops. Other options describe different processes (radiation injury, near-drowning hypoxia) or involve air entering the circulation in ways not specific to nitrogen bubbles after rapid decompression, so they don’t fit as well.

Rapid decompression causes dissolved nitrogen to come out of solution and form gas bubbles in the blood and tissues. These bubbles obstruct small vessels and damage the endothelium, triggering inflammation and tissue ischemia. This is classically seen in divers who ascend too quickly, leading to decompression sickness, sometimes called the bends. The bubbles can produce a range of symptoms from joint and muscle pain and itching to neurologic or chest symptoms depending on where they form. Treatment focuses on inhaling 100% oxygen and then hyperbaric recompression to shrink the bubbles and speed nitrogen elimination. Prevention centers on controlled ascent and proper decompression stops. Other options describe different processes (radiation injury, near-drowning hypoxia) or involve air entering the circulation in ways not specific to nitrogen bubbles after rapid decompression, so they don’t fit as well.