Table 1.
Laboratory results at time of current presentation
| Laboratory test | Normal range | Result at presentation |
|---|---|---|
| White cell count, ×1,000/μL | 3.4–10.8 | 10.4 |
| Hemoglobin, g/dl | 11.1–15.9 | 10.1 |
| Hematocrit, % | 34.0–46.6 | 31.8 |
| Platelet count, ×1,000/μL | 150–379 | 467 |
| Sodium, mmoles/liter | 134–144 | 138 |
| Potassium, mmoles/liter | 3.5–5.2 | 4.3 |
| Blood urea nitrogen, mg/dl | 8–27 | 14 |
| Creatinine, mg/dl | 0.57–1.00 | 0.73 |
| Glucose, mg/dl | 65–99 | 94 |
| Calcium, mg/dl | 8.7–10.2 | 9.1 |
| Homocysteine, μmol/l | 0–15 | 8.8 |
| QuantiFeron Gold | Negative | Negative |
| c-ANCA | Negative | Negative |
| p-ANCA | Negative | Negative |
| Atypical p-ANCA | Negative | Negative |
| Anti-myeloperoxidase (MPO), units/mL | 0–3.5 | 0 |
| Anti-proteinase-3 (PR-3), units/mL | < 9.0 | < 9.0 |
| Angiotensin converting enzyme (ACE), units/L | 14–82 | 35 |
| Erythrocyte sedimentation rate (ESR), mm/hr | 0–32 | 95 |
| C-Reactive protein, mg/L | 0–4.9 | 78.3 |
| Uric acid, mg/dl | 2.5–7.1 | 4.3 |
| Anti-streptolysin O antibody titer, units | 0–200 | 177.1 |
| Beta-2 glycoprotein I IgG antibody, units | < 9 | < 9 |
| Beta-2 glycoprotein I IgM antibody, units | < 9 | < 9 |
| Beta-2 glycoprotein I IgA antibody, units | < 9 | < 9 |
| Anti-cardiolipin IgG antibody, units | < 9 | < 9 |
| Anti-cardiolipin IgM antibody, units | < 9 | < 9 |
| Anti-cardiolipin IgA antibody, units | < 9 | < 9 |
| Lupus anticoagulant | Negative | Negative |
| Fluorescent Treponemal Antibody Absorpition | Negative | Negative |
| Bartonella henselae antibodies | Negative | Negative |
| Batronella quintana antibodies | Negative | Negative |
| Toxoplasma gondi antibodies | Negative | Negative |
| Rheumatoid factor, units/mL | 0–13.5 | 7.6 |
| Anti-nuclear antibody | Negative | Negative |
| Anti-double stranded DNA antibody | Negative | Negative |
| Anti-RNP antibody | Negative | Negative |
| Anti-Scl70 antibody | Negative | Negative |
| Anti-SSA antibody | Negative | Negative |
| Anti-SSB antibody | Negative | Negative |
| Anti-chromatin antibody | Negative | Negative |
| Anti-Jo-1 antibody | Negative | Negative |
| Anti-centromere antibody | Negative | Negative |
| Ferritin, ng/mL | 15–150 | 51 |
| Lactate dehydrogenase (LDH), IU/L | 119–226 | 164 |
| HIV | Negative | Negative |
| Hepatitis C | Negative | Negative |
| Hepatitis B | Negative | Negative |
| Alkaline phosphatase, IU/L | 39–117 | 63 |
| Total protein, g/dL | 6.0–8.5 | 7.7 |
| Albumin, g/dL | 3.5–5.5 | 4.2 |
| Aspartate aminotransferase (AST), IU/L | 0–40 | 22 |
| Alanine aminotransferase (ALT), IU/L | 0–32 | 26 |
| Vitamin D, ng/mL | 30–100 | 45.7 |
| HLA-B*27 | Negative | Negative |
| Quantiferon Gold | Negative | Negative |
Abnormal values are indicated in bold