Formula:
The Plasma Volume calculation relies on the Total Blood Volume and Hematocrit:
`Plasma Volume = Total Blood Volume × (1 - Hematocrit)`
Where:
- Plasma Volume: The estimated volume of plasma (in the same unit as Total Blood Volume).
- Total Blood Volume: The total volume of blood in the body (e.g., in mL or L).
- Hematocrit: The percentage of red blood cells in the blood, expressed as a decimal in the formula (e.g., 0.45 for 45%).