Minimal sedation anxiolysis | Moderate sedation/analgesia ("conscious sedation") | Deep sedation/analgesia | General anesthesia | |
Responsiveness | Normal response to verbal stimulation | Purposeful¶ response to verbal or tactile stimulation | Purposeful¶ response following repeated or painful stimulation | Unarousable even with painful stimulus |
Airway | Unaffected | No intervention required | Intervention may be required | Intervention often required |
Spontaneous ventilation | Unaffected | Adequate | May be inadequate | Frequently inadequate |
Cardiovascular function | Unaffected | Usually maintained | Usually maintained | May be impaired |