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Chapter 4 Alarm
Alarm refers to a prompt that is given by the monitor for medical personnel
through visual, audible and other means when a vital sign appears abnormal or
the monitor occurs technical problem.
Note: The monitor generates all the audible and visual
alarms through speaker, alarm lamp and screen.
4.1 Alarm Categories
By nature, the pulse monitor's alarms can be classified into three categories:
1. Physiological alarms
Physiological alarms are triggered by a monitored parameter value that violates
set alarm limits or an abnormal patient condition. Physiological alarm message
are displayed in the physiological alarm area.
2. Technical alarms
Technical alarms are triggered by a device
distortion due to improper operation or system problems. Technical alarm
messages are displayed in the technical alarm area.
3. Prompt messages
As a matter of fact, prompt messages are not alarm messages. Apart from the
physiological and technical alarm messages, the pulse monitor will show some
messages telling the system status. Prompt messages are displayed in the
technical alarm area.
4.2 Alarm Levels
1. By severity, the pulse monitor's physiological alarms can be classified into three
categories: high level alarms, medium level alarms and low level alarms.
- High level alarms
Indicate that the patient is in a life threatening situation and an
emergency treatment is demanded.
- Medium level alarms
Indicate that the patient's vital signs appear abnormal and an
immediate treatment is required.
malfunction or a patient data
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