Interpreting the Bispectral Index
Increased BP, HR, or autonomic/somatic response
Stable Patient
Hypotension or Unstable Patient
BIS Rango/interpretaciĆ³n
BIS/Ramsay equivalencia

Increased BP, HR, or autonomic/somatic response :

BIS 

Treatment

>65

inc. hypnotic/analgesic, ID strong stimuli

50-65

inc. analgesic, maintain hypnotic, ?NMB, ?antihypertensive med

<45

dec hypnotic, inc analgesic, antihypertensive

Stable Patient:

BIS 

Treatment

>65

r/o artifact, inc hypnotic

50-65

PERFECT!

<45 dec hypnotic, ?dec analgesic
Hypotension or Unstable Patient:

BIS 

Treatment

>65

support BP, dec analgesic, consider amnestic

50-65

support BP, dec analgesic

<45 support BP, dec hypnotic, dec analgesic

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