Table 2.
Relevant Laboratory Tests
| Laboratory Tests | Case 1 | Case 2 | Case 3 | Normal Values |
|---|---|---|---|---|
| SARS-CoV-2 RT-PCR | Positive | ND | Positive | |
| Leucocytes | 13.2 | 7.8 | 6 | 4000–10,000/μL |
| ESR | 47 | 5 | 12 | 0–20 mm/h |
| CRP | 55 | 7 | 4 | Less than 10 mg/L |
| RF | 5 | 6 | 3 | Less than 14 IU/mL |
| ALT | 14 | 20 | 22 | 7–55 U/L |
| AST | 18 | 22 | 28 | 8–48 U/L |
| Creatinine | 1.1 | 1 | 1.1 | 0.9 to 1.3 mg/dL |
| ANA | Negative | Negative | Negative | 7–55 U/L |
| ACE | 10 | 18 | 12 | Less than 40 nmol/mL/min |
| HLA B27 | Negative | Negative | Negative | |
| Brucella | Negative | Negative | Negative | |
| PPD | Negative | Negative | Negative | |
| TPHA | ND | Titer <1:80 | ND | Titer <1:80 |
| HIV test | Negative | Negative | Negative |
Note: *ND: Not done.
Abbreviations: ESR, erythrocyte sedimentation rate; CRP, C-reactive protein; RF, rheumatoid factor; ALT, alanine aminotransferase; AST, aspartate aminotransferase; ANA, antinuclear antibody; ACE, angiotensin converting enzyme; HLB27, human leukocyte antigen B27; PPD, purified protein derivative; TPHA, treponema pallidum hemagglutination; HIV, human immunodeficiency virus; ND, not done.