What red flags after an injury require urgent medical evaluation?

What red flags after an injury require urgent medical evaluation?

• A. Severe chest pain, trouble breathing, persistent or worsening headache, numbness/tingling in limbs, loss of consciousness, repeated vomiting, suspected spinal injury.
• B. Mild muscle soreness after activity.
• C. Light-headedness after one hour.
• D. Minor bruise on arm that fades quickly.

Answer: (A)