User's Manual

Ultraview Care Network
20-10
Obtaining Oximetry Calculations
You can use the calculations feature to obtain specific values for the oximetry
measurements listed below.
Arterial oxygen content — Ca
CaO
2
= (1.34 x Hgb x SaO
2
/100) + (0.0031 x PaO
2
)
Venous oxygen content — Cv
CvO
2
= (1.34 x Hgb x SvO
2
/100) + (0.0031 x PvO
2
)
Arterial-venous oxygen content difference
avDO
2
= CaO
2
- CvO
2
Oxygen availability or oxygen delivery
O
2
AV = CaO
2
x CO x 10
Oxygen consumption
VO
2
= avDO
2
x CO x 10
Values for cardiac output (CO), pulse oximetry (SpO
2
), and venous oxygen
saturation (Sv
O
2
) are automatically displayed when data is available in the
Ultraview Care Network system. You must manually enter laboratory values for
PaO
2
, PvO
2
, and hemoglobin (Hgb) to obtain calculations.
Printing Oximetry Data
You can print venous oximetry data in two formats: the current trend or the results
of the most recent set of oxygenation calculations. Refer to Printing on page 4-5
for more details on system and bedside printers.
Storing or Reading Data
The last 15-minutes of data gathered by the SvO
2
module may be stored in the
optical module’s memory before disconnection. That data can be read back into
the Sv
O
2
module. The stored data includes the year, month, hour, and minute of
collection.
!
• If an SaO
2
value is available, it may be used in place of the
SpO
2
value.
To obtain oxygenation
calculations:
1 Touch SVO2.
2 Touch CALCS.
3 Select a manually entered
value(s) for PaO
2
, PvO
2
, Hgb.
4 Use arrow keys to adjust.
5 Touch ENTER.
To print saturation data:
1 Touch SVO2.
2 Touch PRINT.
3 Select Sv
O
2
TREND or CALC
RESULTS.
To read or store data in the
optical module:
1 Touch SVO2.
2 Touch STORE READ.
3 Select STORE or READ.
4 Touch YES.