Boer derived equations for extracellular and interstitial fluid volume based on height, weight, lean body mass and body surface area.
|
Gender |
Parameter |
ECFV in liters |
IFV in liters |
|
male |
height in meters |
9.78 * (height) |
7.92 * (height) |
|
male |
weight in kg |
0.245 * (kg weight) |
0.198 * (kg weight) |
|
male |
BSA in square m |
9.22 * (sq meter) |
7.45 * (sq meter) |
|
male |
LBM in kg |
0.303 * (kg LBM) |
0.244 * (kg LBM) |
|
female |
height in meters |
8.44 * (height) |
7.04 * (height) |
|
female |
weight in kg |
0.220 * (kg weight) |
0.186 * (kg weight) |
|
female |
BSA in square m |
8.18 * (sq meter) |
6.84 * (sq meter) |
|
female |
LBM in kg |
0.302 * (kg LBM) |
0.248 * (kg LBM) |
where:
• ECFV = extracellular fluid volume
• IFV = interstitial fluid volume
• BSA = body surface area in square meters
• LBM = lean body mass
• Boer's equation for estimating lean body mass from height and weight are given in 02.01.12.
The fluid volumes can be estimated from lean body mass independent of gender:
|
Parameter |
ECFV in liters |
IFV in liters |
|
LBM in kg |
0.3027 * (kg LBM) |
0.2456 * (kg LBM) |
