EDAN iM70 - 22.3.2 Input Parameters; 22.3.3 Output Parameters

Patient Monitor User Manual Calculation
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22.3.2 Input Parameters
Items Unit English Full Name/Description
FiO
2
% Percentage fraction of inspired oxygen
PaO
2
mmHg Partial pressure of oxygen in the arteries
PaCO
2
mmHg Partial pressure of carbon dioxide in the arteries
SaO
2
% Arterial oxygen saturation
PvO
2
mmHg Partial pressure of oxygen in venous blood
SvO
2
% Venous oxygen saturation
Hb g/L Hemoglobin
RQ / Respiratory quotient
ATMP mmHg Atmospheric pressure
C.O. L/min Cardiac output
Height cm /
Weight kg /
22.3.3 Output Parameters
Items Unit English Full
Name/Description
Formula
BSA m
2
Body surface area BSA (m
2
) = Weight
0.425
(kg) ×
Height
0.725
(cm) × 0.007184
VO
2
ml/min Oxygen
consumption
VO
2
(ml/min) = Ca-vO
2
(ml/L) × C.O.
(L/min)
Ca-vO
2
ml/L Arteriovenous
oxygen content
difference
Ca-vO
2
(ml/L) = CaO
2
(ml/L) - CvO
2
(ml/L)
O
2
ER % Oxygen extraction
ratio
O
2
ER (%) = VO
2
(ml/min)/DO
2
(ml/min)
× 100
DO
2
ml/min Oxygen transport DO
2
(ml/min) = CaO
2
(ml/L) × C.O.
(L/min)
PAO
2
mmHg Partial pressure of
oxygen in the
alveoli
PAO
2
(mmHg) = [ATMP (mmHg) - 47
mmHg] × FiO
2
(%)/100 - PaCO
2
(mmHg) × [FiO
2
(%)/100 + (1 - FiO
2
(%)/100)/RQ]
AaDO
2
mmHg Alveolar-arterial
oxygen difference
AaDO
2
(mmHg) = PAO
2
(mmHg) - PaO
2
(mmHg)
CcO
2
ml/L Capillary oxygen
content
CcO
2
(ml/L) = Hb (g/L) × 1.34 + 0.031 ×
PAO
2
(mmHg)
Qs/Qt % Venous admixture Qs/Qt (%) = [CcO
2
(ml/L) - CaO
2
(ml/L)]/[CcO
2
(ml/L) - CvO
2
(ml/L)] ×
100