Table 1 Summary of relevant laboratory results

WBC

18,400/μL

4000–11,000/μL

Hemoglobin

6.4 g/dL

12.0–18.0 g/dL

Creatinine level

5.9-6.5 mg/dL

0.5–1.0 mg/dL

Albumin level

2.8 g/dL

36–53 g/L

Beta-2 microglobulin

8.98 mcg/mL

0.80–2.40 mg/L

Direct Coombs test

Negative

Negative

Reticulocyte count

1.25%

0.2–2.0%

Indirect bilirubin

0.1 mg/dL

0.2–0.8 mg/dL

Haptoglobin

2.69 mg/dL

0.30–2.00 g/L

LDH

209 IU/L

110–265 IU/L

Peripheral smear

No schistocytes or spherocytes; no abnormal cells