Normal serum alkaline phosphatase level is_____________? September 27, 2025 by Admin A. 100-400 Bodansky units B. 1000-4000 Bodansky units C. 0.1-0.4 Bodansky units D. 1-4 Bodansky units ✅ The correct answer is option D. 1-4 Bodansky units.