What is the best practice for managing a high-frequency artifact if it only appears in one channel?

The best practice for managing a high-frequency artifact that appears in only one channel is to change the input signal derivation to a backup exploring electrode. This approach allows for accurate data collection by circumventing the problematic channel. By utilizing a backup electrode, the technician can effectively reduce the artifact's impact on the recording, ensuring that the data from the other channels remains reliable and interpretable.

Utilizing a different electrode can help confirm whether the high-frequency artifact is due to an issue with the specific electrode or if it is more systemic. This method facilitates continued monitoring of the patient without the disruptions caused by artifacts, providing a clearer picture of their sleep state.

In contrast, eliminating the artifact by double referencing may not effectively resolve the issue in a single channel and could complicate analysis. Reducing the amplifier sensitivity on the affected channel could diminish the quality of the recorded signals, potentially masking important data, while waiting for the patient to wake would delay appropriate interventions and data collection.