| Watson : |
Male TBW = |
2.447 - (0.09156 x age) + (0.1074 x height) + (0.3362
x weight) |
| Female TBW = |
-2.097 + (0.1069 x height) + (0.2466 x weight) |
| Hume-Weyers : |
Male TBW = |
(0.194786 x height) + (0.296785 x weight) -
14.012934 |
| Female TBW = |
(0.34454 x height) + (0.183809 x weight) -
35.270121 |
| Chertow's Bioelectrical
Impedance: |
|
TBW = |
ht x (0.0186104 x wt + 0.12703384) + wt x
(0.11262857 x male + 0.00104135 x age - 0.00067247 x wt -
0.04012056) - age x (0.03486146 x male + 0.07493713) - male x
1.01767992 + diabetes x 0.57894981 |
| Mellits-Cheek (kids) : |
Boys TBW |
= -1.927 + 0.465 x weight + 0.045 x height, for
height < 132.7 cm |
| = -21.993 + 0.406 x weight + 0.209 x height, for
height > 132.7 cm |
| Girls TBW |
= 0.076 + 0.507 x weight + 0.013 x height, for
height < 110.8 cm |
| = -10.313 + 0.252 x weight + 0.154 x height, for
height > 110.8 cm |
| Urea Reduction
Ratio : URR = (1 - |
| post-BUN |
) x 100 |
 |
| pre-BUN | |
| Daugirdas :
Kt/V = -ln( |
| post-BUN |
- 0.03) + (4 - 3.5
x |
post-BUN |
) x |
UF |
|
|
|
| pre-BUN |
pre-BUN |
weight | |
Hume R, Weyers E. Relationship
between total body water and surface area in normal and obese
subjects. J Clin Pathol 24:234-238, 1971.
Watson PE,
Watson ID, Batt RD. Total body water volumes for adult males and
females estimated from simple anthropometric measurements. Am J
Clin Nutr 33:27-39, 1980.
Chertow GM, Lowrie EG, Lew NL,
Lazarus JM. Development of a population-specific regression
equation to estimate total body water in hemodialysis patients.
Kid Int 51:1578-1582, 1997.
Daugirdas JT. Second
generation logarithmic estimates of single-pool variable volume
Kt/V: an analysis of error. J Am Soc Nephrol 4:1205-1213,
1993. |
