R waves are consistently measured at what amplitude through the device?

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Multiple Choice

R waves are consistently measured at what amplitude through the device?

Explanation:
The device is set to detect ventricular signals reliably, so the R wave on its sensing channel is typically around ten millivolts. This level sits well above the noise floor and the sensing threshold, ensuring consistent detection of ventricular depolarizations across different patients and lead positions. Intracardiac leads pick up larger voltages than surface ECG, and the sensing amplifier is calibrated to this robust amplitude so beat detection stays reliable. If the signal were much smaller, sensing could fail; if it were much larger, there could be other sensing complications.

The device is set to detect ventricular signals reliably, so the R wave on its sensing channel is typically around ten millivolts. This level sits well above the noise floor and the sensing threshold, ensuring consistent detection of ventricular depolarizations across different patients and lead positions. Intracardiac leads pick up larger voltages than surface ECG, and the sensing amplifier is calibrated to this robust amplitude so beat detection stays reliable. If the signal were much smaller, sensing could fail; if it were much larger, there could be other sensing complications.

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