Which statement about Second Impact Syndrome is true?

Which statement about Second Impact Syndrome is true?

• A. It is a life-threatening emergency
• B. It is a common mild concussion
• C. It occurs only after a year
• D. It is caused by dehydration

Answer: (A)

Second Impact Syndrome challenges how we think about concussion recovery and the danger of returning to play too soon. The true statement is that it is a life-threatening emergency. SIS happens when a second head impact occurs before the first concussion has fully healed, causing rapid brain swelling and potential brain herniation. This can progress very quickly to severe neurological decline or death if not treated immediately, which is why urgent medical care is essential. Understanding this helps explain why returning to play too soon is so risky: the brain needs time to recover, and even a minor second impact can trigger catastrophic swelling. That’s why prevention focuses on removing someone from activity and ensuring they are symptom-free and medically cleared before resuming exertion. The other statements don’t fit SIS: it is not a common mild concussion, it does not occur after a year, and it is not caused by dehydration.

Second Impact Syndrome challenges how we think about concussion recovery and the danger of returning to play too soon. The true statement is that it is a life-threatening emergency. SIS happens when a second head impact occurs before the first concussion has fully healed, causing rapid brain swelling and potential brain herniation. This can progress very quickly to severe neurological decline or death if not treated immediately, which is why urgent medical care is essential.

Understanding this helps explain why returning to play too soon is so risky: the brain needs time to recover, and even a minor second impact can trigger catastrophic swelling. That’s why prevention focuses on removing someone from activity and ensuring they are symptom-free and medically cleared before resuming exertion.

The other statements don’t fit SIS: it is not a common mild concussion, it does not occur after a year, and it is not caused by dehydration.