Operator's Manual

Chapter 6 Taking medical readings
Tempus Pro User/Operator Manual - 41-2001EN-00 – Page 72
 Arrhythmia analysis is turned off, and either the low heart rate or high heart rate alarm limits are
breached.
 Arrhythmia analysis is turned on, and either the low heart rate or high heart rate alarm limits are
breached
A high priority Extreme Brady or Extreme Tachy alarm is triggered when the heart rate continues past
already breached alarm limits.
A 20 second waveform snapshot is captured for all arrhythmia events that trigger an alarm – see “8.1 Event
capture”.
6.1.10 Measuring ST elevation and QT interval (optional)
WARNING
ST measurements should always be verified by the clinician and/ or medically
qualified personnel.
WARNING
Some clinica
l conditions may make it difficult to achieve reliable ST monitoring.
For
best results, consider the following: the ability of the patient to cooperate and be
relaxed. Patients who are restless can produce noisy physiological signals. Noisy
signals which can result in inaccurately high or low data measurements.
WARNING
QT measurements should always be verified by the clinician and/ or medically
qualified personnel.
WARNING
The ST and QT measurements have
not
been qualified for use on paediatric or
neonate patients and are therefore switched off when an age <18 is entered on the
Tempus Pro.
WARNING
The QT algorithm has been tested for accuracy. The significance of the QT segment
however needs to be determined by a clinician. This feature is to aid the clinician in
monitoring the change in QT only.
WARNING
The ST algorithm has been tested for accuracy of the ST segment data. The
significance of the ST segment changes however needs to be determined by a
clinician. This feature is to aid the clinician in monitoring the change in ST and not
diagnosing STEMI or Ischemic events.
WARNING
During the 10 seconds of an ECG recording ST and QT measurements will stop and
therefore there may be an additional delay before an ST or QT alarm is triggered if the
alarm limit is breached during a recording.
WARNING
For very high heart rates (>250 bpm) no ST value will be reported.
WARNING
Some arrhythmia conditions may make it difficult to reliably produce ST
measurements.
WARNING
With ECG waveforms with T-waves smaller than 0.1 mV, the accuracy of the QT
measurement may be reduced, therefore select leads with large T-waves.
Note
When using a 3-lead ECG cable only 1 ECG waveform is produced. Therefore, only 1 ST
measurement value can be produced by the Tempus Pro. For optimum monitoring of ST, a
4- or more lead cable should be used so both ST measurements can be reported.