期刊
PEDIATRICS
卷 116, 期 3, 页码 E453-E456出版社
AMER ACAD PEDIATRICS
DOI: 10.1542/peds.2004-2580
关键词
vitamin D; overdose
类别
We present the unique case of a previously healthy, 2- year- old boy with resistant hypercalcemia and hypertension resulting from an unintentional overdose with an imported vitamin D supplement. The patient presented initially to the emergency department with colic and constipation and was discharged after a benign physical examination. The symptoms persisted and, on the second visit, the patient was found to have a serum calcium level of 14.4 mg/ dL. Despite therapy with intravenously administered 5% dextrose solution at one- half normal strength, furosemide, calcitonin, and hydrocortisone, the calcium concentration increased to 15.0 mg/ dL on the second hospital day and did not decrease until the fourth hospital day, when it fell to 13.9 mg/ dL. The vitamin D concentration peaked at 470 ng/ mL on hospital day 3. With additional questioning, the mother revealed that she had been giving her son a daily dose of 1 ampule of Raquiferol, an imported vitamin D supplement, instead of the recommended 2 drops per day. Each ampule contained 600 000 IU of vitamin D; therefore, the boy received a total of 2 400 000 IU over 4 days. The patient's hypercalcemia persisted for 14 days and was complicated by persistent hypertension. No renal, cardiac, or neurologic complications were noted. At discharge, the vitamin D concentration was still elevated at 389 ng/ mL and the total calcium level had decreased to 11 mg/ dL. The boy made a complete clinical recovery. This case highlights the need for caution when using imported and/ or unregulated medicines, as well as the dangers of parental dosing errors.
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