Table 3.
Autoimmune screen, atypical pneumonia screen and viral screen
| ANA | Negative |
| Gastric parietal cell antibodies | Negative |
| Smooth muscle antibodies | Negative |
| Mitochondrial antibodies | Negative |
| Anti-LKM antibodies | Negative |
| Connective tissue disease antibodies (includes dsDNA, SM, ribosomal P, PCNA, U1-snRNP, Ro, La, Scl-70, centromere-P, fibrillarin, RNA pol III, Jo-1, Mi-2 and PM-Scl) | 0.2 (reference range 0–1), negative |
| C3 (g/L) | 2.14 (0.9–1.8) |
| C4 (g/L) | 0.38 (0.1–0.4) |
| Legionella antigen | Negative |
| Pneumococcal antigen | Negative |
| HIV screen | Negative |
| HCV Ab | Negative |
| Anti-HB core | Negative |
| HBsAg | Negative |
| COVID-19 PCR testing day 0, day 6 and day 8 | Negative |
ANA, antinuclear antibody; Anti-HB core, Hepatitis B core antibody; Anti-LKM, Anti-liver kidney microsomal; dsDNA, double stranded DNA; HbsAg, Hepatitis B surface antigen; HCV Ab, Hepatitis C virus antibody; PCNA, proliferating cell nuclear antigen; SM, smooth muscle; U1-snRNP, U1 small nuclear ribonucleoprotein.