5-10
Running a Case
In Vivo Recalibration
An initial in vivo recalibration must be performed when starting a new case to ensure
maximum correlation to laboratory-derived blood measurements. Recalibrate the
system periodically during in-line operation if it is necessary for the system to correlate
closer to the institution’s laboratory-measured blood parameter values. (Institutions
will dictate allowable variance between these two sets of measurements).
Note: In vivo recalibration should not be confused with gas calibration, which is a separate
preliminary step also required for proper usage of the CDI OneView System. Steps to
perform a gas calibration are detailed in Chapter 4, “Calibration.”
Warning
Measured values prior to initial in vivo recalibration may not be
accurate.
Do not use values prior to initial in vivo recalibration for patient
management.
Caution
Both Arterial and Venous in vivo recalibrations are required to
achieve maximum device accuracy.
To perform in vivo recalibration of all measurable blood parameters, follow these steps:
1. Once the blood parameter values on
the display have stabilized, tap the
Store/Recall button, then Store. The
Store/Recall button will turn green
to indicate the system is ready for
recalibration.
2. Immediately draw a blood sample
from a sampling port close to the
Shunt Sensor.
3. Send the sample for a laboratory
measurement of all blood parameters.
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