Table 1 Laboratory findings upon admission

WBC

13,600/μL

 Bands

2%

 Segments

82%

 Eosinophils

0%

 Basophils

0%

 Lymphocytes

7%

 Monocytes

8%

RBC

323 × 10⁴/μL

Hemoglobin

7.6 g/dL

Hematocrit

29.2%

Platelet

12.0 × 10⁴/μL

Total protein

7.0 g/dL

Albumin

2.6 g/dL

AST

35 IU/L

ALT

23 IU/L

CRP

7.57 mg/dL

Na⁺

130 mmol/L

K⁺

5.3 mmol/L

101 mmol/L

Ca²⁺

7.7 mg/dL

Phosphate

3.8 mg/dL

BUN

25 mg/dL

Cr

2.52 mg/dL

eGFR

20.8 ml/minute/1.73 m²

Uric acid

6.3 mg/dL

HbA1c

6.3%

Glucose

106 mg/dL

ASO

73 IU/mL

Hepatitis B antigen

< 0.04

Hepatitis C antibody

< 0.29

 IgG

2692 mg/dL

 IgA

340 mg/dL

 IgM

350 mg/dL

 Anti-DNA antibody

< 10

 Anti-RNP antibody

Negative

 Anti-Sm antibody

Negative

 C3

50 mg/dL

 C4

17 mg/dL

 CH50

23.4 U/mL

 Antinuclear antibody

160

 PR3-ANCA

163 IU/mL

 MPO-ANCA

< 1.0 IU/mL

 Anti-GBM antibody

< 2.0 IU/mL

 ESR

86 mm/hour

 Rheumatoid factor

86 IU/mL

Urinary analysis

 RBC

Numerous (dysmorphic)/HPF

 WBC

1–4/HPF

 Protein

0.74 g/g Cr

 β₂-MG

12,133 μg/L