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维生素D的摄人量上限尚不清楚,已知400 IU足以防治佝偻病且安全。VD过多症可致高钙血症,危害性大。VD代谢产物能透过胎盘,但母亲患VD过多症时对胎儿仅有短暂的影响。用大量VD的母亲、其乳汁足以导致婴儿VD过多症。儿童滥用VD也能导致VD过多症。VD过多症也多见于钙磷代谢性疾病的治疗过程中。其治疗常规包括停用VD和强地松。
The upper limit of vitamin D intake is not clear, 400 IU is known to be sufficient to prevent rickets and safety. VD too much disease can cause hypercalcemia, great harm. VD metabolites pass through the placenta, but mothers have only a brief transient effect on the fetus when they develop VD. With a large number of VD mothers, their milk enough to cause infantile VD too much. VD abuse of children can also lead to VD too much. VD too much disease is also more common in the treatment of calcium and phosphorus metabolic diseases. The treatment routine includes the suspension of VD and pine.