Stuporous is defined as which condition?

• A. A brief loss of consciousness
• B. A state of lethargy and immobility with diminished responsiveness to stimulation; only responsive to noxious stimuli
• C. Fully alert and oriented
• D. A state of deep sleep with no pain awareness

Answer: (B)

Stupor is a depressed level of consciousness where the animal is markedly drowsy and barely responsive. The patient lies still with little spontaneous movement and will only react to strong or noxious stimuli. This means they are not fully awake or alert, but they are not completely unresponsive like a coma; a painful stimulus may provoke a brief, limited response.

This fits the description of being lethargic and immobile with diminished responsiveness to stimulation, only responsive to noxious stimuli. By contrast, a brief loss of consciousness describes a momentary fainting episode; being fully alert and oriented is normal mental status; and a state of deep sleep with no pain awareness resembles a coma or deeper unconsciousness, not stupor.