Disorder/disease related with bubbling of `N_(2)` in the blood resulting in pain or severe problem is

Options

A. Caisson's disease
B. Cheyne-stokes respiration
C. Hypopnea
D. Asthma

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for a disorder or disease that is related to the bubbling of nitrogen in the blood, which results in pain or severe problems.

2. **Identifying the Correct Disorder**: The disorder associated with the bubbling of nitrogen in the blood is known as **Decompression Sickness** or **Caisson's Disease**. This condition occurs when nitrogen gas, which is dissolved in the blood under high pressure (such as during deep diving), forms bubbles as the pressure decreases when a diver ascends too quickly.

3. **Mechanism of the Disorder**: When a diver ascends rapidly, the nitrogen that was previously dissolved in the blood comes out of solution and forms bubbles. These bubbles can obstruct blood vessels, particularly in the brain and spinal cord, leading to severe neurological deficits and pain.

4. **Identifying Other Options**:
- **Kussmaul's respiration**: This is an abnormal breathing pattern characterized by deep, labored breathing, typically associated with metabolic acidosis. This is not related to nitrogen bubbling.
- **Hypopnea**: This refers to shallow or slow breathing, often seen in sleep disorders. It is not related to nitrogen bubbling.
- **Asthma**: This is a chronic respiratory condition characterized by airway inflammation and constriction. It does not involve nitrogen bubbling.

5. **Conclusion**: Based on the above analysis, the correct answer to the question is **Caisson's Disease** (also known as Decompression Sickness).