To calculate blood volume in pediatrics:
You need to know the child's weight (in kilograms), and their age.
Now, use the formula:
TBV = weight × age factor,
where:
TBV - total blood volume;
age factor - depends on the age:
Phase Age factor [mL/kg] Premature infant 100 Babies <3 months 85 Children >3 months 75 Male adolescents 70 Female adolescents 65
That's it! You can always double-check with the pediatric blood volume calculator.
Read more