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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Mycoplasma pneumoniae Antibody (IgG)
Test Code659
CPT Codes
86738
Preferred Specimen
1 mL serum
Minimum Volume
0.1 mL
Transport Container
Plastic screw-cap vial
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 4 days
Refrigerated: 7 days
Frozen: 30 days
Refrigerated: 7 days
Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Grossly lipemic • Icteric
Methodology
Immunoassay (IA)
Setup Schedule
Set up: Mon-Sat a.m. Report available: Next day
Limitations
IgM antibody testing is valuable for early diagnosis in children; in adults, paired sera for specific IgG and IgM are generally required together with PCR. Specific IgM antibodies are often absent in reinfections; specific IgA might be quite useful in this circumstance.
Reference Range
≤0.90 | Negative |
0.91-1.09 | Equivocal |
≥1.10 | Positive |
Clinical Significance
Mycoplasma are the smallest of the free-living organisms. M. pneumoniae causes approximately 10-20% of all cases of pneumonia. These pneumonias that can affect otherwise healthy individuals, are commonly referred to as "walking" and "aypical" pneumonias.
Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153