Administration of calciferol to patients in excess of their daily requirements can cause hypercalcemia, hypercalciuria a举例：给病人服用骨化醇超过每日需要量，可引起高钙血，高钙尿和高磷酸盐血症。
Hypercalciuria was considered as a secondary condition when (It was) associated with familial renal tubular acidosis.高钙尿如伴有家族性肾小管性酸中毒，就可以认为是继发病。