What is haematocrit value ?

Explanation

### Step-by-Step Solution:

1. **Definition of Hematocrit Value**:
The hematocrit value is defined as the percentage of blood volume that is occupied by red blood cells (RBCs).

2. **Understanding Blood Composition**:
Blood is composed of various components, including red blood cells, white blood cells, platelets, and plasma. The hematocrit specifically measures the volume of red blood cells in relation to the total blood volume.

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