Abbott
RR - accelerometer
Accessed from parameters; basic operations
•Sensor: on passive off
Threshold: amount of activity required to cause sensor activity
•Programmable: 1-7 (1= least activity required to generate sensor signal, 7= most activity)
•Auto: -0.5 – 2.0 (+0.0) measures variation in the last 18 hours – (-ve less activity required/more sensitive)
Slope: the sensor-driven pacing rate for a given level of activity (correlates to workload)
•Programmable: 1-16 (8) (1= increases the rate less than a slope of 16)
•Auto (auto +2) based on recent levels of exercise – can be fine tuned -1.0 - +3.0
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Max Sensor Rate:
•100% max predicted HR = 220- age x 0.85-0.9
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Reaction Time: how quickly rate response is delivered
•fast, medium, slow (younger athletic pts need fast compared to older sedentary pts)
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Recovery Time: determines how quickly a sensor-driven rate goes back to the base rate
•fast, medium, slow, very slow

Programming


RR - AV delay
•Accessed from parameters; Delays;
•Shortens the intrinsic As-Vp delay or sensor driven Ap-Vp delay when heart rate exceeds 90bpm
•Low 1ms response per bpm
•Medium 2ms response per bpm
•High 3ms response per bpm

Programming


RR PVARP &Â VREF
Accessed from parameters; refractories and blanking;
Shortens PVARP as rate increases
•Low 1ms response per bpm >90 bpm
•Medium 2ms response per bpm >90 bpm
•High 3ms response per bpm >90 bpm
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