Mycoplasma pneumoniae antibodies, IgM-13411
Test info
Pleuropneumonia-like organism (PPLO) antibodies
Aid in the diagnosis of atypical pneumonia and Stevens-Johnson syndrome by providing laboratory support for a Mycoplasma pneumoniae infection
The absorbent used in this assay removes as much as 15 mg/mL of human IgG, but the presence of residual IgG in individuals with hypergammaglobulinemia may affect results adversely.
Specimen
Immediately following collection, mix sample by gently inverting 5 times
- Allow sample to clot for a minimum of 30 minutes
- Spin within two (2) hours of sample collection
Gold serum separator (SST) tube
- Allow sample to clot
- Spin
- Transfer serum to a Transfer vial/tube with cap - 12mL (LabCorp), labelled as serum, within two (2) hours of sample collection
Ambient (preferred) - 14 days
Refrigerated - 14 days
Frozen - 14 days
Freeze/thaw cycles - stable x 3
- Hemolysis
- Lipemia
- Gross bacterial contamination
Performance
Enzyme immunoassay (EIA)
Clinical and Interpretive info
Negative: < 770 units/mL
Results must be interpreted in light of each patient's history, physical examination, and other diagnostic findings.
Low positive results (770-950 units/mL) are presumptive evidence of acute or recent infection. It is recommended that the test be repeated on a fresh specimen one to two weeks later to assure reactivity. Specific IgM may persist for several months after initial infection or be absent during reinfection.