Table 1. Laboratory values on admission, Case 1.
| Complete blood count | |||
|---|---|---|---|
| WBC | 4.92 (103/uL) | sIL-2R | 2728.7 U/mL |
| Hb | 11.0 g/dL | PR3-ANCA | 0.90 IU/mL |
| HCT | 34.0% | MPO-ANCA | <0.50 IU/mL |
| Plt | 24 (103/uL) | MMP-3 | 87.6 ng/mL |
| Biochemical findings | RF | 1387.4 U/mL | |
| Na | 133 mEq/L | Anti-RNP antibody | 2.61 U/mL |
| K | 4.7 mEq/L | Anti-Smith antibody | 4.37 U/mL |
| Cl | 103 mEq/L | Anti-SS-A antibody | 1.77 U/mL |
| Ca | 8.2 mg/dL | Anti-SS-B antibody | 1.17 U/mL |
| HCO3 | 22.5 mmol/L | Anti-CCP antibody | 0.7 U/mL |
| BUN | 36 mg/dL | CH50 | <10 U/mL |
| Cr | 1.65 mg/dL | IgG | 4920.5 mg/dL |
| Alb | 3.6 mg/dL | IgG4 | 1706.6 mg/dL |
| AST | 35 IU/L | IgA | 122.1 mg/dL |
| ALT | 20 IU/L | IgM | 185.0 mg/dL |
| ALP | 94 IU/L | C3 | 23.8 mg/dL |
| T-Bil | 0.4 mg/dL | C4 | 0.9 mg/dL |
| PT | 10.8 sec | aCL antibody | 20 U/L |
| APTT | 2.7 sec | ANA titer | 1:160 |
| PT-INR | 1.02 | ||
Abbreviations: WBC: white blood cells; Hb: hemoglobin; HCT: hematocrit; Plt: platelet; Na: sodium; K: potassium; Cl: chloride; Ca: calcium; Mg: magnesium; BUN: blood urea nitrogen; Cr: creatinine; Alb: albumin; AST: aspartate aminotransferase; ALT: alanine aminotransferase; ALP: alkaline phosphatase; T-Bil: total bilirubin; PT: prothrombin time; APTT: activated partial thromboplastin time; SIL-2R serum soluble interleukin-2 receptor; PR3-ANCA: proteinase 3 antineutrophil cytoplasmic antibodies; MPO-ANCA: perinuclear anti-neutrophil cytoplasmic antibodies; MMP-3: matrix metallopeptidase 3; RF: rheumatoid factor; aCL: anti-cardiolipin autoantibody; ANA: antinuclear antibody