Biolight Meditech S10 - Nephridium Calculation

S10/S12/S10A/S12A Patient Monitor User’s Manual
19-11
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19.6.3. Output Parameter and calculation formula
Output
Parameter
Unit Full Name Formula
PAO2 mmHg,kPa
partial pressure of
oxygen in the
alveolar
PAO2=【FiO2×(ATMP－water
pressure) 】－(PaCO2×1.25)
Wherein the water pressure is
selected to be 47mmHg (6.3kPa)
AaDO2 mmHg,kPa
alveolar-arterial
oxygen difference
AaDO2=PAO2－PaO2
Pa/FiO2 mmHg,kPa oxygenation ratio Pa/FiO2= PaO2/FiO2
a/AO2 %
arterial to alveolar
oxygen ratio
a/AO2= （100 ×PaO2）/PAO2
MV L/min minute volume MV=(TV/1000)×RR
Vd mL
volume of
physiological dead
space
Vd=【( PaCO2－PeCO2) ×TV】
/PaCO2
Vd/Vt %
physiologic dead
space in percent of
tidal volume
Vd/Vt= (PaCO2－PeCO2)/
PaCO2×100%
VA L/min alveolar volume
VA=(TV－Vd) ×RR
19.7. Nephridium Calculation
The monitor provides the nephridium calculation function. The monitor can save the
results of up to 20 calculations, which are displayed in groups.
19.7.1. Calculation Step
1. Access nephridium calculation page by either of the following ways:
 Select【Calculations】quick key【Nephridium】submenu.
 Select【Main Menu】quick keyfrom 【Calculations】 column to