title: Hypocalcemic tetany in a toddler with undiagnosed rickets.
abstract: A 17-month-old black girl presented to the pediatric emergency department with sudden onset of her hands and feet "drawing up." A diagnosis of vitamin D deficiency rickets with tetany was made on a history of exclusive breast-feeding, low serum calcium, phosphorus, and 25-hydroxyvitamin D levels, and bone radiographs. Nutritional rickets should be considered in the differential diagnosis of acute hypocalcemia.
authors.affiliation: Department of Emergency, Wake Forest University Baptist Medical Center, Winston-Salem, NC, USA.
authors.forename: R Y
authors.initials: RY
authors.lastname: Duplechin
authors.forename: M
authors.initials: M
authors.lastname: Nadkarni
authors.forename: R P
authors.initials: RP
authors.lastname: Schwartz
mesh_terms: D000208:Acute Disease; D001942:Breast Feeding / Q000009:adverse effects; D002118:Calcium / Q000097:blood; D003937:Diagnosis, Differential; D019587:Dietary Supplements; D004638:Emergency Treatment / Q000379:methods; D005260:Female; D006801:Humans; D006887:Hydroxycholecalciferols / Q000097:blood; D006996:Hypocalcemia / Q000209:etiology*; D007223:Infant; D007225:Infant Food; D015596:Nutrition Assessment; D010758:Phosphorus / Q000097:blood; D011859:Radiography; D012279:Rickets / Q000097:blood / Q000150:complications* / Q000000981:diagnostic imaging / Q000188:drug therapy; D012307:Risk Factors; D013746:Tetany / Q000209:etiology*; D014807:Vitamin D / Q000378:metabolism / Q000627:therapeutic use
chemical_list: D006887:Hydroxycholecalciferols; D014807:Vitamin D; D010758:Phosphorus; D002118:Calcium