Mindray BeneView T1, Руководство оператора

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18-4
In the [ Oxygenation Calculation ] window, you can:

Change the pressure unit, Hb unit and oxygen content unit by selecting [ Press. Unit ], [ Hb Unit ] and [ OxyCont
Unit ] and then selecting the appropriate settings. The changes take effect automatically.

Trigger a recording by selecting the [ Record ] button. The currently displayed oxygenation calculations are
printed out by the recorder.

Review the previously performed calculations by selecting [ Review ].
18.3.2 Entered Parameters
Abbreviation Unit Full spelling
C.O. L/min cardiac output
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
CaO
2
ml/L arterial oxygen content
CvO
2
ml/L venous oxygen content
VO
2
ml/min oxygen consumption
RQ None respiratory quotient
ATMP mmHg atmospheric pressure
Height cm height
Weight kg weight
18.3.3 Calculated Parameters and Formulas
Abbreviation Unit Full spelling Formula
BSA m
2
body surface area Wt
0.425
× Ht
0.725
× 0.007184
VO
2
calc ml/min oxygen consumption C(a-v)O
2
× C.O.
C(a-v)O
2
ml/L arteriovenous oxygen content difference
CaO
2
－
CvO
2
O
2
ER % oxygen extraction ratio 100×C(a-v)O
2
/ CaO
2
DO
2
ml/min oxygen transport C.O. × CaO
2
PAO
2
mmHg
partial pressure of oxygen in the alveoli FiO
2
/ 100 × (ATMP
－
47)
－
PaCO
2
×[ FiO
2
/100
＋
(1
－
FiO
2
/100) / RQ ]
AaDO
2
mmHg alveolar-arterial oxygen difference
PAO
2
－
PaO
2
CcO
2
ml/L capillary oxygen content
Hb × 1.34
＋
0.031 × PAO
2
Qs/Qt %
venous admixture
100× [1.34 × Hb × (1
－
SaO
2
/100)
＋
0.031×
(PAO
2
－
PaO
2
)] / [1.34 × Hb × (1
－
SvO
2
/100)
＋
0.031× (PAO
2
－
PvO
2
)]
C.O. calc L/min calculated cardiac output
VO
2
/ (CaO
2
－
CvO
2
)