Body Water (Total Desired)
Info
Patient Weight
unit kg lb
Measured Na (mEq/L or mmol/L)
Normal Na (mEq/L or mmol/L)
R e s u l t s
Liters
? ? ?
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Info
Body Water (Total Desired)
 

Body Water (Total desired) (TBW) in L=

Measured serum Na x 0.6 x weight / Normal serum Na

 

Na conc in mEq/L

Weight in kg

 

Assumes current TBW is 60% of weight

See Body Water Deficit formula