Instructions for Use Infinity Acute Care System - Monitoring Applications SW VG1 239
Cardiac Output (C.O.)
C.O. Computation Constant
The computation constant compensates for the
specific characteristics of the C.O. catheters. If you
use a Baxter, BD/Ohmeda, or Arrow catheter, the
computation constant is automatically selected. If
you choose Other as a catheter type (see
page 246), enter a computation constant that
corresponds to the catheter, its size, injectate
volume, and injectate temperature.
Consult the documentation included with the
catheter for computation constants, and select one
that corresponds to the used injectate volume and
temperature.
To enter a computation constant manually
Make sure the catheter type ’Other’ is selected (see
page 246), otherwise the button Comp. constant
is not available on the Procedures C.O. page.
1 Access the C.O. setup page (see page 246)
or
Access the Procedures C.O. page (see
page 245)
2 Select the keypad symbol next to Comp.
constant to open a numeric keypad.
3 Enter the correct computation constant for the
type of catheter being used (refer to the tables
on page 240).
4 Select Enter on the keypad to confirm the
value.
WARNING
An incorrect computation constant may yield
incorrect C.O. measurements and put the
patient at risk. Confirm that the manually
entered computation constant is correct for
the catheter you are using.
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