Lepu Medical AIView 12V, Operator'S Manual

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17-10
17.4.3 Output Parameters and Formulas for Oxygenation
Calculations
Output
Parameter Full Name
/Description
Unit Formula
Reference
Range
BSA Body surface
area m
2
Wt
0.425
*Ht
0.725
*0.0
07184
——
VO
2
calc Oxygen
consumption ml/mi
n (SaO2-SvO
2
)*13.
4*Hb * C.O.
——
C(a-v)O
2
Arteriovenous
oxygen
content
difference ml/L CaO
2
- CvO
2
42-59
O
2
ER Oxygen
extraction
ratio % VO
2
/(CaO
2
*C.O.)
*100
24-28
DO
2
Oxygen
delivery ml/mi
n CaO
2
* C.O. 950-1150
PAO
2
Partial
pressure of
oxygen in the
alveoli mmH
g (FiO
2
*100)*(ATM
P-47)
–(PaCO
2
/R
Q)
——
AaDO
2
Alveolar-arteri
al oxygen
difference mmH
g (FiO
2
*100)*(ATM
P-47)
–(PaCO
2
/R
Q)-PaO
2
10-15
CcO
2
Pulmonary
capillary
oxygen
content ml/L (Hb*1.34)+((FiO
2
*100)*(ATMP-47)
-(PaCO
2
/
RQ))*0.0031)
——
Qs /Qt Pulmonary
venous
admixture % {[(Hb*1.34)+(((Fi
O
2
*100)*(ATMP-
47)-(PaCO
2
/RQ))
*0.0031)]-CaO
2
)/{
[(Hb*1.34)+(((FiO
2
*100)*(ATMP-47
)
–(PaCO
2
/RQ))*0
.0031)]
–CvO
2
}*1
00
3.0-5.0
C.O.calc Calculated
cardiac output L/min VO
2
/
(CaO
2
-CvO
2
)
0.1-20.0