Which level of consciousness grade describes a patient who is drowsy but arousable with gentle stimulation (often described as 'lethargic')?

• A. Alert
• B. Obtunded
• C. Stupor
• D. Lethargic

Answer: (D)

Understanding the levels of consciousness in a mental status exam helps you describe how alert a patient is. A patient who is drowsy but can be woken by gentle stimulation fits the description of lethargic. In this state, the person is sleepy and slow to respond, yet consciousness is preserved: they can be awakened with minimal cues, answer questions, and follow commands, though their responses may be slow and their attention wavering.

This sits between fully alert and more impaired levels. Being alert means the person is fully awake, attentive, and oriented. Obtunded describes a more depressed level where arousal requires more stimulation than a gentle cue, and responses are slower or confused even when awakened. Stupor is a much deeper impairment, where only strong or painful stimuli can briefly arouse the person, and responses are limited. In a coma, there is no arousal or purposeful response to stimuli.

So, the term that best matches drowsy but arousable with gentle stimulation is lethargic.