Pediatric Blood Volume Calculator

Total Blood Volume (ml): Total Blood Volume (cl): Total Blood Volume (l):

1. What is a Pediatric Blood Volume Calculator?

Definition: This calculator estimates the total blood volume (TBV) for pediatric patients based on weight and age group.

Purpose: Useful for medical assessments and planning treatments in pediatric care.

2. How Does the Calculator Work?

The calculation is based on the following formula:

\[ \text{TBV (mL)} = \text{Weight (kg)} \times \text{Age Factor} \]

Age Factors:

100 mL/kg for premature infants
85 mL/kg for newborn infants (younger than 3 months)
75 mL/kg for children (older than 3 months)
70 mL/kg for male adolescents
65 mL/kg for female adolescents

Unit Conversions:

Weight: lb → kg (×0.453592)
Total Blood Volume: ml (direct), cl (×0.1), l (×0.001)

Explanation: Weight is converted to kg, and the appropriate age factor is applied based on the selected age group to calculate TBV in ml, then converted to cl and l.

3. Importance of Blood Volume Estimation

Details: Accurate blood volume estimation is essential for managing pediatric transfusions, surgeries, and critical care.

4. Using the Calculator

Tips: Enter weight (kg or lb, >0) and select the appropriate age group. Results show total blood volume in ml, cl, and l.

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