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HemoSphere Advanced Monitor 11 Oximetry Monitoring
CAUTION The catheter and the calibration cup must be dry for an accurate oximetry in vitro
calibration. Flush the catheter lumen only after the in vitro calibration has been
completed.
Performing an in vitro calibration after the oximetry catheter has been inserted into the
patient will yield an inaccurate calibration.
1 Touch the clinical actions icon Oximetry Calibration icon .
2 At the top of the Oximetry Calibration screen, select Oximetry Type: ScvO
2
or SvO
2
.
3 Touch In vitro Calibration button.
4 On the In vitro Calibration screen, enter either the patient’s hemoglobin (HGB) or hematocrit
(Hct). Hemoglobin may be entered in either g/dL or mmol/L on the keypad. See table 11-1 for
acceptable ranges.
5 Touch Calibrate button to start the calibration process.
6 When the calibration successfully completes, the following message appears:
In vitro Calibration OK, insert catheter
7 Insert the catheter as described in the catheter instructions for use.
8 Touch Start button.
11.2.1 In Vitro Calibration Error
If the HemoSphere advanced monitor is unable to perform an in vitro calibration, an error popup screen
appears.
Touch In vitro Calibration button to repeat the oximetry calibration process.
OR
Touch Cancel button to return to the Oximetry Calibration menu.
11.3 In Vivo Calibration
Use in vivo calibration to perform a calibration after the catheter has been inserted into the patient.
NOTE This process requires approved personnel to draw waste blood (clearing volume) and a
blood sample for laboratory processing. A measured oximetry value must be obtained
from a co-oximeter.
For optimal accuracy, in vivo calibration should be performed at least every 24 hours.
Table 11-1 In vitro calibration options
Option Description
Selection range
HGB (g/dL) Hemoglobin 4.0 to 20.0
HGB (mmol/L) 2.5 to 12.4
Hct (%) Hematocrit 12 to 60
Status = Released Printed Date: 2018-01-16 Released Date: 2017-09-14
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