Medicine Concentration of urea in a patient is 52 mg/dL. What is the serum Blood Urea Nitrogen? A 24.3 B 34.5 C 41.9 D 69-7 💡 Explanation Concentration of urea in a patient is 52 mg/dL. What is the serum Blood Urea Nitrogen? ✓ Correct Answer: A. 24.3