Biolight Meditech P1 - Page 202

P1 Patient Monitor User’s Manual
16-12
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16.7.2. Input Parameter
Input Parameters Unit Full Name
URK mmol/L urine pstassium
URNa mmol/L urinary sodium
Urine mL/24h urine
Posm mosm/kg plasm osmolality
Uosm mosm/kg urineosmolality
SerNa mmol/L serumsodium
Cr umol/L creatinine
UCr umol/L urinecreatinine
BUN mmol/L blood urea nitrogen
Height cm, inch height
Weight kg, lb weight
16.7.3. Output Parameter and calculation formula
Output
Parameter
Unit Full Name Formula
URNaEx mmol/24h urinesodium excretion
URNaEx= Urine ×
URNa/1000
Cosm mL/min osmolar clearance
Cosm=Uosm×(Urine/24/60)/
Posm
URKEx mmol/24h
urine potassium
excretion
URKEx= Urine ×
URK/1000
CH
2
O mL/h
free water
clearance
CH
2
O=Urine/24×(1－
Uosm/Posm)