OPTIMedical OPTI CCA-TS, Руководство оператора, Страница: 251 / 271

A-12 Operator’s Manual – OPTI CCA-TS
APPENDIX A - TECHNICAL SPECIFICATIONS
For Fetal hemoglobin:
( )
2
2
2
O lg O lg
50
O % 100
O
9 . 2
) 113 . 4 (lg
lg
:
10 0 . 25
2 2
S
S
Q
Q
PO
where
P
k
k
−
=
+
=
⋅ =
− P P
[mmHg]
6
AaDO
2
The alveolar to arterial oxygen tension gradient ( P AO
2
- P aO
2
) is the difference between the
alveolar oxygen tension, estimated above, and the measured oxygen tension of arterial blood.
PAO
2
= (P
total
– 47) FIO
2
– PACO
2
[FIO
2
+ (1 - FIO
2
)/R] [mmHg]
7
PACO
2
= PaCO
2
(alveolar PCO
2
)
Apply above equation for PAO
2
≥ PO
2
, otherwise PAO
2
= PO
2
pH
t
pH corrected to patient temperature other than 37 ºC.
) 37 t ( )] 4 . 7 pH ( 0065 . 0 0147 . 0 [ pH pH
t
− ⋅ − ⋅ + − =
[pH-unit]
7
cH
+t
Concentration of hydrogen ions corrected to patient temperature other than 37 ºC.
c H t pHt = − 10 9 ( )
[nmol/L]
6
PCO
2
t
P
CO
2
value corrected to patient temperature other than 37 ºC.
P P CO CO
t
t
2 2
0 019 37 10 = ⋅ ⋅ − . ( )
[mmHg]
7
PO
2
t
P O
2
value corrected to patient temperature other than 37 ºC.
( )
P P
2
P
P
O O
t
O
O
t
= ⋅
⋅ − ⋅ +
⋅ − ⋅ +








⋅ −
2
5 4910 11
23 88 0 071
9 7210 9
23 88 2 30
37
10
.
.
.
.
.
.
[mmHg]
6