Which of the following most strongly suggests the diagnosis of primary hyperparathyrodism?: (A) Serum acid phosphatase above 120IU/L, (B) Serum calcium above 11 mg/dL, (C) Urinary calcium below 100 mg/day, (D) Serum alkaline phosphatase abve 120 lU/L
Answer is B. Diagnostic criteria for primary hyperparathyroidism and its surgery Ref - semantischolar.org