Haemorrhagic disorder occurs when the platelet count falls to less than

Options

A. 1,50 , 000 / m`m^(3)`
B. 1,00,000/m`m^(3)`
C. 75, 000/m`m^(3)`
D. 50, 000/ m`m^(3)`

Answer

To answer the question regarding the platelet count at which hemorrhagic disorders occur, follow these steps:

### Step-by-Step Solution:

1. **Understand the Condition**: Recognize that a hemorrhagic disorder is related to bleeding and can be influenced by the number of platelets in the blood.

2. **Identify the Relevant Term**: The medical term for a low platelet count is "thrombocytopenia." This condition can lead to increased bleeding or hemorrhagic disorders.

3. **Know the Threshold**: Research or recall that hemorrhagic disorders typically occur when the platelet count falls below a certain threshold.

4. **Determine the Critical Count**: The critical platelet count at which hemorrhagic disorders are likely to occur is generally accepted to be less than 50,000 platelets per cubic millimeter (mm³).

5. **Evaluate the Options**: Given the options:
- 1,50,000 (too high)
- 1,00,000 (still too high)
- 75,000 (still above the critical threshold)
- **D: 50,000 (correct choice)**

6. **Conclude the Answer**: Therefore, the correct answer is that hemorrhagic disorders occur when the platelet count falls to less than **50,000 per mm³**.