Plasma Volume Calculator

Plasma Volume (ml): Plasma Volume (cl): Plasma Volume (l):

1. What is a Plasma Volume Calculator?

Definition: This calculator determines the plasma volume based on weight, hematocrit, and gender.

Purpose: Useful for assessing blood plasma levels in medical diagnostics.

2. How Does the Calculator Work?

The calculation follows these steps:

\[ \text{Step 1: Base Volume (ml)} = \text{Weight (kg)} \times 65 \, (\text{female}) \, \text{or} \, 70 \, (\text{male}) \]

\[ \text{Step 2: Fraction} = 1 - \frac{\text{Hematocrit (\%)}}{100} \]

\[ \text{Plasma Volume (ml)} = \text{Base Volume} \times \text{Fraction} \]

Unit Conversions:

Weight: lb → kg (×0.453592)
Hematocrit: % (direct as fraction)
Plasma Volume: ml (direct), cl (×0.1), l (×0.001)

Explanation: Weight is converted to kg, adjusted by gender-specific factors, and multiplied by the hematocrit fraction to yield plasma volume, then converted to ml, cl, and l.

3. Importance of Plasma Volume Calculation

Details: Plasma volume assessment is critical for diagnosing conditions like dehydration, anemia, and other blood-related disorders.

4. Using the Calculator

Tips: Enter weight (kg or lb, >0), hematocrit (0-100%), and select gender. Results show plasma volume in ml, cl, and l.

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