← Critical-care EEG

Background voltage

High, normal, low, or suppressed peak-to-trough background voltage.

Criteria & assessment

  • High: most/all activity >=150 µV.
  • Low: most/all activity <20 µV but not suppressed.
  • Suppressed: all activity <10 µV.
  • For nearly continuous/discontinuous records, use the higher-voltage portion.
Source · 2021ACNS critical-care EEG terminology · PDF p. 7 ↗
Generation & measurement notes
  • Define 'most/all' and numeric normal bounds; S01 does not.

Editorial draft · clinical review pending