Measurement Of Total Body Water

Tritium oxide tho is used because it is a weak beta emitter making it easy to measure in a liquid scintillation counter. Rapid mixing of tritiated water throughout all compartments occurs during a 3 to 4 hour equilibration period. Tritiated water or heavy water. Bmi and bsa mostellercalculate bmi and body surface area using mosteller formulabmi and bsa du boisdetermine body mass index and body surface area using du bois method. Dialysis risk after cardiac surgery cleveland clinic score by thakarestimate risk of dialysis after cardiac surgery. This study was designed to compare a newly developed whole body magnetic resonance mr imaging technique with standard tritium dilution tho to measure total body water tbw in eight primates macaca fascicularis.

Watson formula for women 2097 01069 x height in centimeters 02466 x weight in kilograms total body weight tbw in liters to get the percentage of water in your body assume 1 liter. Total body water measurements by skinfold thickness measurement. 222 total body water this is estimated by measuring the volume of distribution of isotopes of water. Each subjects height was measured with the use of a wall mounted stadiometer to the nearest 01 cm and the weight was measured on a balance beam scale to the nearest 100 g. The total body water is then accurately measured from the increase in breath deuterium content in relation to the volume of d 2 o ingested. Different substances can be used to measure different fluid compartments.

Anthropometric methods which are more clinically feasible also involve substantially greater calculation error.