Anesthesia Services

“Completely Asleep”

GENERAL ANESTHESIA

General Anesthesia is a drug-induced loss of consciousness during which patients are not arousable, even by painful stimulation. Patients may not preserve the ability to independently maintain ventilatory function and often require assistance in maintaining a patent airway. Additionally, patients will not remember any period during the anesthesia period.

DEEP SEDATION

A drug-induced depression of consciousness during which patients cannot be easily aroused but respond purposefully following repeated or painful stimulation. The ability to independently maintain ventilatory function may be impaired. Patients may require assistance in maintaining a patent airway, and spontaneous ventilation may be inadequate. Cardiovascular function is usually maintained.

“Twilight Anesthesia”

MODERATE SEDATION

A drug-induced depression of consciousness during which patients respond purposefully to verbal commands, either alone or accompanied by light tactile stimulation. No interventions are required to maintain a patent airway, and spontaneous ventilation is adequate. Cardiovascular function is usually maintained.

MINIMAL SEDATION

A minimally depressed level of consciousness, produced by a pharmacological method, retains the patient’s ability to independently and continuously maintain an airway and respond normally to tactile stimulation and verbal command. Although cognitive function and coordination may be modestly impaired, ventilatory and cardiovascular functions are unaffected.

Download this guide for complete information on each of these sedation methods: ADA Sedation Use Guidelines