Table 1.

Laboratory Values on Presentation

	Value	Reference range
Total corrected serum calcium (mg/dL)	12.2	8.4–10.2
Creatinine (mg/dL)	1.79	0.51–0.95
Parathyroid hormone (pg/mL)	<10	15–65
1,25-dihydroxyvitamin D (pg/mL)	8.9	18.0–78.0
25-hydroxyvitamin D (pg/mL)	13	30–80
Parathyroid hormone-related peptide (pmol/L)	0.4	<2
Serum protein electrophoresis	Negative	–