Alarms and Messages
VF4 Infinity Gamma Series Page 5-15
Alarms in OR Mode
When you select the OR mode (see the chapter Multigas), the
monitor’s alarm behavior for some alarms changes in order to
avoid nuisance alarms during surgical procedures. In OR mode,
the following applies:
! All ECG Lead Off conditions as well as the sensor applica-
tion errors SpO2 Transparent and SpO2 Light Blocked cause
one-time advisory alarm indications only.
! A prolonged RRc apnea condition causes an escalation of
alarm indications. When the first apnea interval expires, the
monitor issues a one-time advisory alarm. If the RRc apnea
condition persists through 3 apnea intervals, the monitor
issues a one-time serious alarm. If the RRc apnea condition
persists through 6 apnea intervals, the monitor issues a one-
time life-threatening alarm. (The length of the apnea interval
depends on the selected RRc Apnea Time, 10 to 30 seconds;
see the chapter End-Tidal CO
2
.)