Gambros Phoenix Calculator was specifically developed for healthcare professionals including Nephrologists, Intensivists, Fellows and Dialysis Nurses managing ESRDpatients using the Phoenix X36 Dialysis System. This calculator enables users to calculate the V in KtV based on the Watson formula using the patients gender, age, and weight. Calculations can be done in metric or standard measurements.nnDISCLAIMER: Gambro is not responsible for arithmetic errors, prescriptions developed in reliance on the users calculations, or patient response to such prescriptions. The information is presented for informational purposes only, and is not intended to be construed as medical advice. One should consult a healthcare professional for specific medical treatment.