Which list correctly identifies the four depths on the continuum of sedation?

• A. Minimal Sedation/Anxiolysis, Moderate Sedation/Conscious Sedation, Deep Sedation/Analgesia, General Anesthesia
• B. Light Sedation, Moderate Sedation, Deep Sedation, Full Consciousness
• C. Arousal, Sleep, Unconscious, Coma
• D. Anxiety, Analgesia, Unresponsiveness, None of the Above

Answer: (A)

The four depths on the sedation continuum are defined by how responsive the patient is and how their airway and ventilation are affected, spanning from light to no awareness. The correct sequence includes minimal sedation (anxiolysis), where the patient remains normally responsive to verbal commands and maintains protective reflexes; moderate sedation (conscious sedation), where the patient responds purposefully to verbal commands or light touch and still generally maintains airway control; deep sedation (analgesia), where the patient is not easily aroused but can respond (if stimulated), with potential need for airway support and slower or less adequate spontaneous ventilation; and general anesthesia, where the patient is not arousable even with painful stimuli and requires airway management and advanced monitoring. This standardized progression ensures clinicians track how close the patient is to losing protective reflexes and respiratory effort, guiding monitoring and intervention needs. The other options mix terms that don’t align with the established four-depth framework—one omits general anesthesia and uses an unfamiliar label, another describes states of consciousness rather than clinically defined sedation depths, and another pairs unrelated terms.