Which of the following injuries would require immediate medical attention?

A concussion is a type of traumatic brain injury that can occur when the head experiences a jolt or blow. It can lead to a range of symptoms, including confusion, headache, dizziness, nausea, and even loss of consciousness. Given the potential severity of brain injuries, recognizing and addressing a concussion promptly is crucial. Immediate medical attention can help prevent further complications or worsening of the injury, as concussions can have serious long-term effects if not treated properly.

In contrast, while a sprained ankle can be painful and may require medical evaluation, it is typically not life-threatening and can often be managed with rest, ice, compression, and elevation. Similarly, minor cuts and abrasions, while they may require cleaning and care to prevent infection, do not usually pose an immediate risk to life or long-term health and can generally be treated at home unless they are deep or bleeding profusely.