What should a nurse instruct the parent of a teenager who experienced a hard tackle in football?

The correct response emphasizes the importance of ensuring the safety of the teenager following a potentially traumatic event such as a hard tackle in football. A concussion is a serious brain injury that may not present immediate symptoms but can have significant consequences if overlooked. It is crucial for the athlete not to return to play until they have been evaluated by a healthcare provider, as this helps prevent further injury that might occur if a concussion is present but not recognized.

By requiring an evaluation before allowing the teenager to resume sports activities, the nurse is adhering to concussion management guidelines that prioritize the health and safety of the individual. This practice is supported by recommendations from organizations such as the CDC and the American Academy of Pediatrics, which advocate for proper assessment and management of head injuries.

While the other options may contain elements of truth, they do not adequately prioritize the necessary precautions to protect the teenager's health. Thus, the emphasis on evaluation by a health provider ensures a careful and informed approach to returning to physical activity.