Patient Monitor User Manual Alarm Information
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Chapter 5 Alarm Information
5.1 Physiological Alarm Information
WARNING
The physiological alarms including Asystole, Sustain VT, RESP APNEA, SpO
2
No
Pulse, SpO
2
Desat, CO
2
APNEA, AG FiO
2
Low, and AG APNEA cannot be turned off.
Message Cause Alarm Level
HR High
HR measuring value is above the upper alarm limit. User-selectable
HR Low
HR measuring value is below the lower alarm limit. User-selectable
ST-X High
ST measuring value is above the upper alarm limit. (X
stands for I, II, III, aVR, aVL, aVF, V, V1, V2, V3,
V4, V5 or V6)
User-selectable
ST-X Low
ST measuring value is below the lower alarm limit.(X
stands for I, II, III, aVR, aVL, aVF, V, V1, V2, V3,
V4, V5 or V6)
User-selectable
Asystole
No QRS is detected for 4 consecutive seconds High
V-Fib/V-Tach
4 consecutive seconds' fibrillation wave occurs; Or 5
consecutive ventricular beats, and ventricular HR ≥100
bpm.
High
Run PVCs
3 ≤ the number of consecutive PVCs < 5
User-selectable
Couplet
2 consecutive PVCs
User-selectable
PVC Bigeminy
A dominant rhythm of N, V, N, V (N =
supraventricular beat, V = ventricular beat) was
detected.
User-selectable
PVC Trigeminy
A dominant rhythm of N, N, V, N, N,V User-selectable
R on T
A type of single PVC under the condition that HR <
100, R-R interval is less than 1/3 the average interval,
followed by a compensating pause of 1.25X the
average R-R interval (the next R wave advances onto
the previous T wave).
User-selectable
PVC
Single PVC detected in normal heartbeats, and the
number of consecutive single PVC ≥ 4 within 30 s.
User-selectable
Tachy
Adult: RR interval for 5 consecutive QRS complex <
0.5 s.
Pediatric/neonatal: RR interval for 5 consecutive QRS
complex < 0.375 s.
User-selectable
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