Severe Hypercalcemia and Acute Renal Failure: An Unusual Presentation of Sarcoidosis

Table 1

Laboratory values of patients 1 and 2.

	Normal; value	Patient; no. 1	Patient; no. 2
Calcium	8–10.5 mg/dL	13.5 mg/dL	13.3 mg/dL
Ionized calcium	1.10–1.30 mmol/L	1.68 mmol/L	1.66 mmol/L
Serum creatinine	0.5–1.4 mg/dL	3.4 mg/dL	2.4 mg/dL
BUN	6–23 mg/dL	55 mg/dL	32 mg/dL
25 hydroxyvitamin D	14–42 ng/mL	22 ng/mL	21 ng/mL
1,25- Dihydroxyvitamin D	22–67 ng/mL	69 ng/L	Not done
Alkaline phosphatase	1–120 U/L	44 U/L	48 U/L
Phosphorus	2.5–4.5 mg/dL	3.4 mg/dL	3.1 mg/dL
Parathyroid hormone	12–72 pg/mL	9.1 pg/mL	9.0 pg/mL
PTHrP	<0.2 pmol/L	<0.2 pmol/L	0.4 pmol/L
ACE level	8–52 U/L	98 U/L	71 U/L
24° urinary; calcium	100–300 mg/24°	1074	448 and 587*
TSH	0.35–5.50 uIU/mL	1.80 uIU/mL	2.8 mIU/mL
CBC	HGB 12–15 g/dL	HGB 12.8 g/dL	HGB 9.9 g/dL
	HCT 36–45%	HCT 34.6%	HCT 29.4%
	WBC 4–12 × 10^3/mm^3g/dL	WBC 5.6 × 10^3/mm^3	WBC 4.1 × 10^3/mm^3
	Platelets 150–400 g/dL	Platelets 132 g/dL	Platelets 190 g/dL

*Measured on two different occasions.