Which of the following is NOT a sign of concussion in adults?

• A. Confusion
• B. Dizziness or Loss of Balance
• C. Nausea or Vomiting
• D. Fainting

Answer: (D)

Concussion signs in adults are typically neurological or cognitive after head trauma, such as confusion, trouble with balance or dizziness, and nausea or vomiting. Fainting is not a typical sign of a concussion itself; while a loss of consciousness can occur with a head injury, it’s not a reliable or common symptom of concussion and often points to other issues. So the option describing fainting is the one that doesn’t fit as a concussion sign. If someone does faint, assess safety and seek medical care if head injury is suspected or symptoms persist.