The client was seen and treated in the emergency department (ED) for a concussion. Before discharge, the nurse explains the signs/symptoms of a worsening condition. The nurse determines that the...

The client was seen and treated in the emergency department (ED) for a concussion. Before discharge, the nurse explains the signs/symptoms of a worsening condition. The nurse determines that the family needs further teaching if they state they will return to the ED if the client experiences which sign/symptom?

1. Vomiting 2. Minor headache 3. Difficulty speaking 4. Difficulty awakening