Emergency surgery
Monitored Anesthesia Care (i.e., regional anesthesia alone without plans for general anesthesia)
Surgery involving the eye, eyebrow, forehead, or frontal scalp near the sensor placement
Poor health literacy
Allergy, or have experienced any drug reaction to ketamine
Pregnant or lactating
Currently in active alcohol withdrawal

NCT03040024_exc_T1
Procedure
Emergency surgery
NCT03040024_exc_T2
Visit
Emergency
NCT03040024_exc_T3
Procedure
Monitored Anesthesia Care
NCT03040024_exc_T4
Procedure
regional anesthesia
NCT03040024_exc_T5
Multiplier
alone
NCT03040024_exc_T6
Negation
without
NCT03040024_exc_T7
Mood
plans for
NCT03040024_exc_T8
Procedure
general anesthesia
NCT03040024_exc_T9
Scope
regional anesthesia alone without plans for general anesthesia
NCT03040024_exc_T10
Procedure
Surgery
NCT03040024_exc_T11
Qualifier
eye
NCT03040024_exc_T12
Qualifier
eyebrow
NCT03040024_exc_T13
Qualifier
forehead
NCT03040024_exc_T14
Qualifier
frontal scalp
NCT03040024_exc_T16
Scope
eye, eyebrow, forehead, or frontal scalp
NCT03040024_exc_T17
Observation
Poor health literacy
NCT03040024_exc_T18
Condition
Allergy
NCT03040024_exc_T19
Condition
drug reaction
NCT03040024_exc_T20
Drug
ketamine
NCT03040024_exc_T21
Scope
Allergy, or have experienced any drug reaction
NCT03040024_exc_T22
Condition
Pregnant
NCT03040024_exc_T23
Condition
lactating
NCT03040024_exc_T24
Qualifier
active
NCT03040024_exc_T25
Condition
alcohol withdrawal
NCT03040024_exc_T26
Temporal
Currently