Laboratory analyses, including direct and indirect Coombs tests, antinuclear antibodies, liver-kidney microsomal antibody, mitochondrial antibody, smooth muscle antibody
, anti-soluble liver antigen, anti-cardiolipin IgM-IgG, anti-phospholipid IgM-IgG, protein electrophoresis, serum and 24-hour-urine copper, serum ceruloplasmin, and fecal alpha-1 antitrypsin did not reveal any abnormalities.
Anti smooth muscle antibody
was weakly positive in titre of 1: 40.
Serum anti-RSV IgM 0.64 Serum anti-RSV IgG 1.4 Nasal influenza A/B swab Negative Anti-ribosomal P antibody Negative Anti-nuclear antibody Negative Anti-DNA antibody Negative Smooth muscle antibody
Negative Anti-scleroderma 70 antibody Negative Myeloperoxidase Negative Proteinase 3 antibody Negative Cold agglutinin antibody Negative Rheumatoid factor Negative Anti-cyclic citrullinated antibody Negative HIV Negative Chlamydiapneumoniae IgM <1:20 Chlamydial pneumonia IgG <1:64 Legionella antigen, urine Negative Histoplasma antigen, urine Negative Blood, urine, and respiratory culture Negative BAL cultures and acid fast bacilli stains Negative Cryoglobulin level Negative M.
Table 1: liver screen and autoimmune profile Test Result Hepatitis C antibody Negative Hepatitis B surface antigen Negative Ferritin 85 ug/L (15-300) Caeruloplasmin 0.33g/L (0.19-0.71) Double-stranded DNA antibody 4.44 IU/ml (<10) Nuclear antibody 1 in 1280 IgG Mitochondrial antibody Negative Smooth muscle antibody
Negative Reticulin antibody Negative ENA- Ro/La/RNP/Sm/Jo-1/Scl-70 Negative Liver kidney microsomal antibody Negative Soluble liver antigen antibody Borderline Liver cytosol antibody Negative