Roosa Wederhorn: Age and Patient Activity Dependent Alarm-Limits in Wireless Patient Monitoring
You are warmly welcome to the special assignment presentation of Ms Roosa Wederhorn on Tuesday 17 April 2018 at 15.15 in F227, Rakentajanaukio 2 C, Otaniemi.
Type of talk: Special Assignment presentation
Title of talk: Age and Patient Activity Dependent Alarm-Limits in Wireless Patient Monitoring
Supervisor: D.Sc. (Tech.) Matti Stenroos
Instructor: D.Sc. (Tech.) Kimmo Uutela
Patient monitoring is used in hospitals to track patient's state of health. The alarm limits in monitoring are set to fit all the right alarms. Thus also some false alarms occur. The aim of this work is to define the need of automatically adjusted alarm limits in patient monitoring to reduce the amounts of false alarms. This work characterizes the effects of patient's age (adult 18-60, elderly >60) and patient's activities (lying, sitting, walking) in the statistical distributions of heart rate, respiratory rate and oxygen saturation of blood.
In this work altogether 36 patients were examined. The vital sign data was collected with a prototype of wireless patient-monitoring device. Care personnel annotated patient’s activity level during the measurement. The heart rate as well as respiratory rate both showed change, both by age and activity group: the averages of the aged subjects were less than with the younger subjects. Both of the parameters also showed rise in function of activity level. The oxygen saturation had statistically significant changes by activity level but clinically those changes were negligible.