Table 2.

Case 2 - summary of laboratory data.

Investigation	Prior to treatment	During the treatment	Repeat laboratory data	Reference range
Sodium (mmol/L)	140	141	139	135–145
Potassium (mmol/L)	4.5	4.0	4.1	3.5–5.1
BUN (mg/dL)	24	29	23	7–25
Creatinine (mg/dL)	0.64	0.85	0.65	0.6–0.93
Albumin (g/dL)	4.3	4.3	3.9	3.6–5.1
Calcium (mg/dL)	9.5	12.5	9.3	8.6–10.4
25(OH)D (ng/mL)	33	NA	32	30.0–100.0
PTH (pg/mL)	24	NA	83, repeat 43	14–64
ALP (U/L)	57	143	214	33–130
24-h urine calcium (mg)	210	NA	31	35–250
Calcium/creatinine ratio in 24-h urine (mg/g)	230	NA	57	30–275

Abbreviations: BUN = Blood Urea Nitrogen; 25(OH)D = 25-hydroxy-vitamin D; ALP = alkaline phosphatase; NA = not available.