What is the best way to reduce the amplitude of a T wave?

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Multiple Choice

What is the best way to reduce the amplitude of a T wave?

Explanation:
Raising the high-pass cutoff attenuates more of the low-frequency content in the signal. The T wave is a relatively slow, low-frequency component of the ECG, so increasing the cutoff from 24 Hz to 32 Hz removes more of that energy and reduces the T-wave amplitude. This keeps the faster, higher-frequency parts of the ECG, like the QRS complex, from being as affected as with even higher cutoffs. Pushing the cutoff even higher (for example, 44–52 Hz) would start to distort the QRS morphology by chopping into its higher-frequency content. Simply increasing the sampling rate doesn’t inherently reduce amplitude; it changes resolution, not the signal’s energy.

Raising the high-pass cutoff attenuates more of the low-frequency content in the signal. The T wave is a relatively slow, low-frequency component of the ECG, so increasing the cutoff from 24 Hz to 32 Hz removes more of that energy and reduces the T-wave amplitude. This keeps the faster, higher-frequency parts of the ECG, like the QRS complex, from being as affected as with even higher cutoffs. Pushing the cutoff even higher (for example, 44–52 Hz) would start to distort the QRS morphology by chopping into its higher-frequency content. Simply increasing the sampling rate doesn’t inherently reduce amplitude; it changes resolution, not the signal’s energy.

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