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Instructions for use – Infinity Acute Care System – Monitoring Applications VG6.n
329
Cardiac output (C.O.)
Cardiac output
measuring modes
Two cardiac output measuring modes are
available: automatic and manual. If unstable blood
temperatures, artifact, or other conditions are
preventing automatic measurements, switch to
manual mode.
If the attention tone is not deactivated (see
page 445), a tone sounds when the cardiac output
value has been computed.
Automatic measurements
In auto mode, the message
Inject when ready
appears in the
Procedures...
>
C.O.
page of the
Cockpit when the baseline blood temperature is
stable. If the blood temperature becomes unstable,
the message
Inject when ready
is replaced by the
message
Poor baseline
. To select the automatic
cardiac output mode, see page 334.
Arrow computation constants
Catheter
size
Injectate
volume
Tinj =
-
5 °C to 23.9 °C
(23 °F to 75 °F)
Tinj
>=
24 °C (75.2 °F)
7.5F
10 cc
0.532
0.586
7.5F
5 cc
0.249
0.265
7.5F
3 cc
0.131
0.155
7F
10 cc
0.541
0.601
7F
5 cc
0.250
0.273
7F
3 cc
0.134
0.156
5F
5 cc
0.267
0.303
5F
3 cc
0.157
0.192