What is edema-free weight? Calculate Mrs. Joaquin's edema-free weight
What will be an ideal response?
• The following equation can be used to calculate the edema-free adjusted body weight (aBWef):
- aBWef = BWef + [(SBW – BWef) x 0.25]
- where BWef is the actual edema-free body weight and SBW is the standard body weight as determined from the NHANES II data.
• Edema-free weight is the weight at which the water content of the body is normal; there is no edema or swelling; and blood pressure is not too low when standing.
• This is the weight a person should weigh after dialysis treatment without extra fluid.
• It should be measured postdialysis for HD patients and after drainage of dialysate for PD patients.
• It is sometimes called "true weight" or edema-free actual weight for dialysis patients.
• Weight gained between treatments is referred to as fluid weight.
aBWef = BWef + [(SBW - BWef) x 0.25]
aBWef = 73.3 kg + [(60 kg – 73.3 kg) x 0.25]
aBWef = 73.3 + [(-13.3) x 0.25]
aBWef = 73.3 – 3.325 = 69.975 kg or 70 kg
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