Which phrase accurately reflects the first clue of impairment?

• A. The subject cannot keep balance during the instruction phase
• B. The subject completes the task without issue
• C. The subject answers questions in a calm voice
• D. The subject shows perfect coordination

Answer: (A)

Impairment often shows up first as a disruption in basic movement control, and balance is a clear window into that control. If the subject cannot keep balance during the instruction phase, it reveals a disruption in motor coordination and sensorimotor integration right at the start of the task. That early loss of steadiness is a tangible, observable cue that something isn't functioning normally, making it the best indicator in this scenario.

Completing the task without issue would suggest normal function, so it doesn’t reflect impairment. Answering questions in a calm voice isn’t a motor cue and doesn’t directly show balance or coordination problems. Showing perfect coordination would, of course, indicate no impairment.