Frequency and reliability of alarms in the monitoring of cardiac postoperative patients |
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Authors: | Erkki M J Koski Aki M?kivirta Tommi Sukuvaara and Aarnc Kari |
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Abstract: | Postoperative monitoring of cardiac operated patients requires appropriately functioning monitor alarms as well as intensive
nursing activity. The limit alarms can be used for detection of life-threatening situations and monitoring of physiological
changes in the patient's state. We studied the significance and the frequency of audible alarms during the postoperative intensive
care of ten cardiac patients. Of 1307 occasions when such an alarm was activated during the study period of approximately
26 hours per patient, only 139 (10.6%) were significant. The highest proportion of significant audible limit alarms was found
during the immediate postoperative period. Heart rate alarms were more reliable than alarms of the other parameters monitored
in the study. Possibilities for improving the physiological monitoring and alarm system are discussed. |
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Keywords: | alarms equipment safety critical care monitoring physiological cardiac postoperative care |
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