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Chapter8 Alarm
8.1 Alarm Type
The monitor can give an alarm of three types: physiological alarm, technical alarm and prompt
message.
(1) Physiological alarm
Physiological alarm is usually caused by a certain physiological parameter of the patient
which exceeds the set upper/lower limit scope or by the physiological abnormality of the
patient. The alarm message of the physiological alarm will appear in the physiological alarm
area above the screen.
(2) Technical alarm
The technical alarm is also referred to as a system error message, indicating the alarm is
caused by a misoperation or system malfunction thereby causing improper operation of a
system function or distortion of monitored results. The alarm message of the technical alarm
will appear in the technical alarm area above the screen.
(3) Prompt message
Strictly speaking, prompt message does not belong to the domain of alarm. It is to display the
information relative to the system conditions themselves, which have nothing to do with the
patient’s vital sign.Prompt message will appear in the prompt message area.
8.2 Alarm Level
The monitor can give an alarm in three volume levels: high, medium and low, based on the
severity.
(1) High level alarm:
The patient is in a critical condition, endangering the patient’s life, emergent attention
required.
(2) Medium level alarm:
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