Acute Kidney Injury, Recurrent Seizures, and Thrombocytopenia in a Young Patient with Lupus Nephritis: A Diagnostic Dilemma

Table 1

Laboratory data.

Variable	Reference range, adults	On admission	Third hospital day	Sixteenth hospital stay	At discharge
White cells (per mm^3)	3,500–11,000	29,000	14,500	8,900	8,800
Hemoglobin (g/dl)	12–16 (women)	9.6	7.7	7.7	8.9
Hematocrit (%)	36–46	30.6	23.9	22.4	26.3
Platelets (per mm^3)	150,000–440,000	95,000	45,000	143,000	131,000
Carbon dioxide (mEq/L)	24–30	12.6	24.8	29.5	21
Urea nitrogen (mg/dl)	5–26	54	45	47	59
Creatinine (mg/dl)	0.1–1.5	2.3	2.2	5.3	2.9
Albumin (g/dL)	3.5–5.5	2.4	2.3	2.5	3.3
Lactate dehydrogenase (U/L)	100–210	1,144	418	393
Total bilirubin (mg/dl)	0.1–1.2	0.2	0.3	0.3	0.3
Erythrocyte sedimentation rate (mm/hr)	0–20	36
C-reactive protein (mg/L)	0–5	64.9
Complement C3 (mg/dl)	90–180	80
Complement C4 (mg/dl)	10–40	28.5
ADAMTS13 activity	≥67%	82%
Direct Coombs test	Negative	Negative		Negative