ACE and Hypercalcemia: Evaluation of the hypercalcemia revealed the following: PTH < 3 (11–67 pg/mL), 25-hydroxyvitamin D 23.8 (30–95 ng/mL), 1,25-dihydroxyvitamin D 79 (18–72 pg/mL), and angiotensin converting enzyme (ACE) level 82 (9–67 U/L) (Table 2).