Pre-Tachyarrhythmia Practice Exam

If the minimum threshold changes from 0.8 mV to 1.2 mV, has the device become less sensitive if nothing else changes?

Yes No, upper and lower thresholds are programmed separately It becomes more sensitive Sensitivity cannot be changed

Correct Answer:

No, upper and lower thresholds are programmed separately

Explanation:

In sensing systems, sensitivity isn’t tied to a single knob. The device uses a sensing window defined by a lower threshold and an upper threshold, and those two values are programmable separately. So changing the minimum threshold from 0.8 mV to 1.2 mV does not automatically make the device less sensitive by itself—the overall sensing behavior is determined by both thresholds and the detection logic, which remain unchanged if everything else stays the same. This is why the concept tested is that upper and lower thresholds are set independently.

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