Many factors affect a person's blood volume and its relative composition.
Volumes are based on body weight calculations (mL per kg body weight).
Effect of Age on Intravascular Volumes
|
Factor
|
Adjustment
|
|
under 18 years of age
|
110% of adult
|
|
elderly
|
90% of adult
|
Effect of Weight on Intravascular Volumes
|
Factor
|
Adjustment
|
|
weight loss, marked & within 6 months
|
based on original weight before loss
|
|
weight loss, gradual over longer period of time
|
110-115% of adult, based on current weight
|
|
obese with short stature
|
90% of adult
|
