Cardiac output (C.O.)
328 Instructions for use – Infinity Acute Care System – Monitoring Applications VG6.n
The following tables list the computation constants
for Baxter, BD/Ohmeda, and Arrow catheters.
Baxter computation constants
Injectate temperature (Tinj)
sensor connected
sensor disconnected
Catheter
size
Injectate
volume
Tinj = -5 to + 16.0 °C
(23 to 60.9 °F)
Tinj = 16.1 to 25 °C
(61.0 to 80 °F)
Tinj = 20 °C (68 °F)
7F 10 cc 0.561 0.608 0.542
7F 5 cc 0.259 0.301 0.247
7.5F 10 cc 0.574 0.595 0.564
7.5F 5 cc 0.287 0.298 0.257
5F 5 cc 0.285 0.307 0.270
BD/Ohmeda computation constants
Injectate temperature (Tinj)
sensor connected
Catheter
size
Injectate
volume
Tinj = -5 to + 16.0 °C
(23 to 60.9 °F)
Tinj = 16.1 to 25 °C
(61.0 to 80 °F)
7.5F 10 cc 0.579 0.628
7.5F 5 cc 0.281 0.309
7.5F 3 cc 0.160 0.181
7F 10 cc 0.579 0.628
7F 5 cc 0.281 0.309
7F 3 cc 0.160 0.181
5F 5 cc 0.291 0.316
5F 3 cc 0.170 0.188