Advertisement
Chapter 11: TEMP Monitoring
11.1 GENERAL
Measurement of patient temperature is accomplished by processing the signal from a probe
containing temperature dependent resistor called thermistor .Value of this resistor is measured by
the monitor continuously and displayed on screen. Patient monitor has two different kinds of
temperature probe, a probe for esophageal /rectal temperature measurement and other for skin
temperature measurement.
Specification:
Measuring and Alarm Range
Accuracy
Delay time
Two TEMP probes can be used together to obtain 2 temperature data and compare them to
determine the temperature difference.
Accuracy of measured temperature is checked per minute by an internal reference resistor
calibrated on temperature 37.1˚C.
TEMP monitoring setup:
■
Plug TEMP probe directly into the monitor.
■
Attach the TEMP probe(s) properly to the patient.
■
Switch on the system.
Inspection and recalibration
Visually inspect the probe for cracks, holes, crazing etc, prior to each use. If any such
degradation in the cable jacket is discovered, discard probe according to your hospital's
procedure for medical waste. When using temperature probe, the user must determine that a
probe style is suitable and sufficiently flexible for esophageal or rectal use.
Probe cannot be "recalibrated" per se, but should be inspected monthly by the hospital
Biomedical Equipment group to ensure they are working properly. Probes can be tested by
plugging into a patient monitor and looking for an electrical open or short–circuit, Intermittent
reading or extremely inaccurate readings which would indicate probe wire damage. The sensor
stability is well-documented; Probe accuracy should not drift out of tolerance over the normal
life of probe.
WARNING
Use only the recommended manufacturer TEMP probe for monitoring, other probes may
cause system malfunction.
For rectal/esophageal probe
For skin probe
11-2
User Manual
0~ 50 ºC
± 0.2 º C
50 sec
20 sec
Advertisement
Chapters
