Other frequently occurring alarms included physiological variables and minute/tidal volumes falling outside of pre-determined ranges (34.6% and 15.4% respectively).
Currently available monitoring systems provide for the setting of an alarm on most physiological data.
Cells can dynamically activate distinct physiological processes, such as adaptation, alarm, or apoptosis, depending on the ER stress intensity [ 7, 17].
Alarms due to physiological variables falling outside of the pre-determined ranges have increased from 27.1%to34.6%6%.
In this paper, trends extracted on-line from physiological data are used to generate alarms for medical staff.
According to Hans Seyle, the 3 physiological phases that the response follows are: alarm, adaptation or resistance, and exhaustion.
The chemosensory mediated alarm response in animals entails withdrawal behavior [8] [10] and physiological adaptations [11], [12].
The conclusions are that signal merging and fusion techniques may improve robustness, reduce false-positive alarms and potentially provide early warning of adverse physiological events.
Numerous standard monitor alarms were recorded that did not correspond to physiological events, often due to signal artefact or nonclinical events such as patient movement, but typically these did not trigger an alert from our signal fusion technology.
Scientists also have proposed a suffocation false alarm theory, in which signals about potential suffocation arise from physiological and psychological centres involved in sensing factors associated with suffocation, such as increasing carbon dioxide and lactate levels in the brain.
A multivariable analysis of the other monitored physiological variables is carried out on a fixed temporal window preceding the alarm, using change indices calculated from the physiological variables trend.
