Question

What kind of problem arises when bubbles of nitrogen gas dissolve in blood?

• A. Anoxia
• B. Red fever
• C. Sleeping sickness
• D. Bends

Answer 1

The Correct Option is D

The problem that arises when bubbles of nitrogen gas dissolve in the blood is known as "Bends."

This condition, also referred to as decompression sickness, occurs when a diver ascends too quickly after being at great depths. Under these conditions, increased pressure causes more nitrogen to dissolve in the bodily fluids. If the ascent is too rapid, the reduced pressure causes nitrogen to form bubbles in the blood and tissues, leading to joint pain, dizziness, and more severe complications if not properly managed.

Condition	Description
Anoxia	Condition where tissues are deprived of oxygen.
Red fever	Fictional condition; not relevant.
Sleeping sickness	Caused by the tsetse fly; unrelated to diving.
Bends	Caused by nitrogen bubbles in the bloodstream.

The correct answer to the given question is "Bends," reflecting the condition that occurs when dissolved nitrogen gas forms bubbles upon rapid pressure change.

Answer 2

Bends, also known as decompression sickness, occur when nitrogen bubbles form in the bloodstream and tissues. This happens due to a rapid decrease in pressure, typically following activities such as scuba diving or any situation where a person is exposed to high-pressure environments and then quickly returns to normal atmospheric pressure.

During a dive, the body absorbs nitrogen from the compressed air in the diving tank, as the pressure increases. When a diver ascends too quickly, the pressure drops rapidly, and the dissolved nitrogen comes out of solution, forming bubbles in the tissues and bloodstream. These bubbles can cause blockages in blood vessels, leading to symptoms such as joint pain, dizziness, chest pain, and in severe cases, paralysis or death.

To prevent bends, divers follow a practice known as controlled ascent, where they gradually return to the surface to allow the body to release the excess nitrogen safely. Additionally, decompression stops are made during ascent to ensure a slow and safe off-gassing process.

The condition can be treated through the use of hyperbaric oxygen therapy, where the patient is exposed to high-pressure oxygen, which helps to dissolve the nitrogen bubbles and reduce symptoms.