Product Manual

Patient Monitor User Manual Calculation
- 137 -
Items
Unit
English Full
Name/Description
Formula
VD/VT
%
Physiological dead
space in percent of
tidal volume
VD/VT=(PaCO
2
-PeCO
2
)/PaCO
2
VA
L/min
Alveolar volume
VA=(VT-VD)*RR/1000
Cdyn
ml/cmH
2
O
Compliance dynamic
Cdyn=VT/(Ppeak-PEEP-PEEPi)
20.5 Renal Function Calculation
20.5.1 Calculation Procedure
1. Select Menu > Common Function > Calculation > Renal Function.
2. Manually enter the values required on this interface.
3. Select Calculate to output parameter value.
20.5.2 Input Parameters
Items
Unit
English Full Name/Description
URK
mmol/L
Urine potassium
URNa
mmol/L
Urinary sodium
Urine
ml/24h
Urine
Posm
mOsm/kgH
2
O
Plasm osmolality
Uosm
mOsm/kgH
2
O
Urine osmolality
SerNa
mmol/L
Serum sodium
SCr
umol/L
Serum creatinine
UCr
umol/L
Urine creatinine
BUN
mmol/L
Blood urea nitrogen
UUN
mmol/L
Urine urea nitrogen
Height
cm
Height
Weight
kg
Weight
Type
/
Patient type: Adult, Pediat, Neonat
Gender
/
Male, Female, N/A.
20.5.3 Output Parameters
Items
Unit
English Full
Name/Description
Formula
URNaEx
mmol/24h
Urine sodium
excretion
URNaEx= URNa* Urine/1000