A Rare and Potentially Fatal Etiology of Hypercalcemia in an Infant

Table 1

Calcium metabolism markers at each of the hospital admissions.

	Initial presentation	Second admission	Third admission
	(Baseline)	(+7 weeks)	(+15 weeks)
Total calcium; (RR: 2.12-2.74 mmol/L)	4.47	3.37	2.47
Ionized calcium; (RR: 1.1-1.3 mmol/L)	2.43	1.83	1.35
25 hydroxy vit D; (RR: 20-200 nmol/L)	153		50.2
1,25 dihydroxy vit D; (RR: 49.7-197.9 pmol/L)	364		92.9
Parathyroid hormone; (RR: 12-65 ng/L)	5.3
Phosphorus; (RR: 1.39-2.39 mmol/L)	1.55		1.1
Albumin; (RR: 3.5 – 4.5 g/L)	4.4	4.1	2.4
Urine Ca:Cr ratio	1.85