This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolic and endocrine disorders, Subject name: Orthopaedics
Alkaline phosphatase is elevated in all except - 
Select and explain. 
A. Rickets, B. Osteomalacia, C. Hypoparathyroidism, D. Hypophosphatemia
C: Hypoparathyroidism
Answer: C: Hypoparathyroidism 
Explanation: Bone alkaline phosphatase activity is normal and bone resorption is diminished in hypoparathyroidism, while patients affected by PHP often have increased bone turnover and thus increased alkaline phosphate activity. Ref essential ohopaedic maheshwari and mhaskar 6/e