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Mycoplasma pneumoniae, IgM Antibodies

Test ID: 


CPT code:



•Atypical Pneumonia Antibodies
•Pleuropneumonia-like Organism (PPLO) Antibodies

Clinical Use:

Aid in the diagnosis of atypical pneumonia and Stevens-Johnson syndrome by providing laboratory support for a Mycoplasma pneumoniae infection. Results must be interpreted in light of each patient’s history, physical examination, and other diagnostic findings.

Test Information:

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.

Specimen Type:


Requested Volume: 


Minimum Volume: 

0.5 mL

Container Type: 

Red-top tube or gel-barrier tube

Storage Instructions:

Maintain specimen at room temperature.

Stability Requirements:



Room temperature

14 days


14 days


14 days

Freeze/thaw cycles

Stable x3

Rejection Criteria:

Hemolysis; lipemia; gross bacterial contamination

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