Which statement best describes concussion?

Which statement best describes concussion?

• A. Usually with a prolonged loss of consciousness lasting hours
• B. Consciousness remains intact with no symptoms
• C. Symptoms are limited to a headache only
• D. Usually involves transient drop in level of consciousness with quick recovery; headache, dizziness, grogginess, nausea; recovery minutes to hours

Answer: (D)

Concussion is a mild traumatic brain injury that causes temporary disruption of brain function after a head impact. It often involves a brief change in consciousness or mental status, but not a prolonged loss of consciousness. The strongest description reflects a transient drop in consciousness with quick recovery, accompanied by a cluster of symptoms such as headache, dizziness, grogginess, and nausea that typically resolve within minutes to hours. This aligns with how concussions usually present: a short-lived alteration in awareness plus multiple symptoms, rather than a long coma or no symptoms at all. The other descriptions mischaracterize concussion by implying either prolonged unconsciousness, no symptoms, or symptoms limited to just a headache.

Concussion is a mild traumatic brain injury that causes temporary disruption of brain function after a head impact. It often involves a brief change in consciousness or mental status, but not a prolonged loss of consciousness. The strongest description reflects a transient drop in consciousness with quick recovery, accompanied by a cluster of symptoms such as headache, dizziness, grogginess, and nausea that typically resolve within minutes to hours. This aligns with how concussions usually present: a short-lived alteration in awareness plus multiple symptoms, rather than a long coma or no symptoms at all. The other descriptions mischaracterize concussion by implying either prolonged unconsciousness, no symptoms, or symptoms limited to just a headache.