Which combination best indicates a life-threatening kidney injury?

• A. Pain in the low back with blood in urine, nausea, and vomiting
• B. Headache and mild fever
• C. Sneezing and runny nose
• D. Itchy skin on the arms

Answer: (A)

Recognizing red flags for a life-threatening kidney injury relies on noticing flank lower-back pain accompanied by blood in the urine and nausea or vomiting. This combination strongly points to renal trauma with potential internal bleeding, a medical emergency that needs urgent evaluation. The other symptom patterns—headache with mild fever, sneezing and runny nose, or itchy skin—are typical of illnesses or allergic reactions and do not indicate kidney injuries. So, the presence of low-back pain with hematuria and nausea/vomiting is the best sign of a potentially life-threatening kidney injury. If this appears after a trauma, seek immediate medical care.