Table 2 Evaluation for primary and secondary causes of eosinophilia
Vitamin B12 | > 1500 pg/mL (range 180–914 pg/mL) |
Serum tryptase | 7.1 ng/mL |
Serum IgE | 444 IU/mL |
CMV quantitative PCR | None detected |
Cryptosporidium Ag, Blood | Negative |
Brucella antibody titer | < 1:80 |
Q Fever IgG Phase I Screen | Negative |
Q Fever IgG Phase II Screen | Negative |
Q Fever IgM Phase I Screen | Negative |
Q Fever IgM Phase II Screen | Negative |
Stool ova and parasites | Negative |
Stool clostridioides difficile DNA detection | Negative |
Blood culture | Negative |
Stool culture | No enteric pathogens isolated |
Anti-HBc IgM | Non-reactive |
HBsAg | Non-reactive |
Anti-HCV | Non-reactive |
Anti-HAV IgM | Non-reactive |
HIV antigen | Not detected |
HIV-1 and HIV-2 antibodies | Not detected |
Cardiolipin IgG | Negative |
Cardiolipin IgM | Negative |
Cardiolipin IgA | Negative |
Lupus anticoagulant | Not detected |
Glycoprotein I IgG | Negative |
Glycoprotein I IgA | Negative |
Glycoprotein I IgM | Negative |
ANCA | Negative |
ANA | Negative |
Rheumatoid factor | Negative |
Chromatin antibody | Negative |
Sm/RNP antibody | Negative |
DsDNA antibody | Negative |
Jo-1 antibody | Negative |
Scl-70 antibody | Negative |
Ss-B antibody | Negative |
Ss-A antibody | Positive (1.5 U) |