For the clinical assessment of Intravascular Blood Volume, the BVA-100, a semi-automated blood volume analyzer device that has FDA approval, determines the status of a patient's blood volume based on the Ideal Height and Weight Method [REF].
\pm\%\text{ Desirable Weight} = \frac{\text{Actual Weight}-\text{Desirable Weight}}{\text{Desirable Weight}}\times100 Using the deviation from desirable weight, the BV ratio (ml/kg), i.e.