Tandon et al adjusted body weight in patients with cirrhosis to take into account fluid accumulation as ascites or pedal edema. This dry weight may give a more accurate body mass index. The authors are from the University of Alberta, University of Waterloo and University of Calgary.
Patient selection: cirrhosis with a history of ascites
Parameters:
(1) scale weight on kilograms
(2) weight after paracentesis in kilograms
(3) degree of ascites (mild, moderate, severe)
(4) bilateral pedal edema
First adjustment: Adjust the scale weight for ascites by using one of the following:
Status
Multiply Scale Weight By
immediate post-paracentesis
1
with mild ascites
0.95
with moderate ascites
0.90
with severe ascites
0.85
Second adjustment: If bilateral pedal edema is present, then subtract an additional 5%.
adjusted weight =
= (unadjusted weight) * 0.95
BMI for dry weight =
= (adjusted weight) / ((height)^2)
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