What are the parameters for the ECG channel in terms of LFF, HFF, sensitivity, and sampling rate?

The correct choice provides appropriate parameters for the ECG channel, focusing on Low Frequency Filter (LFF), High Frequency Filter (HFF), sensitivity, and sampling rate, which are critical for accurately capturing and representing the electrical activity of the heart.

The Low Frequency Filter (0.3 Hz) is set to eliminate unnecessary low-frequency noise, including muscle artefacts and baseline drift, allowing for clear visualization of the heart's rhythm. This ensures that the important slower oscillations that reflect heart activity are preserved while filtering out irrelevant signals.

The High Frequency Filter is set at 70 Hz, which is adequate for preserving the sharpness of the ECG signals while filtering out high-frequency noise that could cause distortion. This range is optimal as it captures the needed high-frequency components without introducing excessive noise into the heart’s electrical activity representation.

The sensitivity of 20 µV/mm is ideal, providing a good balance between amplitude and clarity of the waveform on the ECG display. This setting ensures that the small voltages produced by the cardiac action potentials are easily observable on the recording.

Finally, the sampling rate of 500 Hz ensures that the ECG data is captured with high temporal resolution, allowing for accurate representation of rapid changes in the cardiac cycle. A higher sampling rate translates to