ARUP's Laboratory Test Directory

Mycoplasma pneumoniae Antibody, IgM : 0050398

Mnemonic: MYCO-M

Methodology: Enzyme-Linked Immunosorbent Assay
Performed: Sun-Sat
Reported: 1-3 days
Specimen Required: Collect:  One 4 mL serum separator tube. 

Transport:  0.5 mL serum at 2-8°C. (Min: 0.2 mL)  Submit specimen in an ARUP Standard Transport Tube.

Pediatric Collection/Transport:  0.1 mL serum at 2-8°C.

Remarks:  Separate serum from cells ASAP. Acute and convalescent specimens must be labeled as such; parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens. Please mark specimen plainly as "acute" or "convalescent."

Unacceptable Conditions:  Severely lipemic, contaminated, heat-inactivated, icteric or hemolyzed specimens.

Stability:  After separation from cells: Ambient: 2 days; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
Reference Interval:
0.76 U/L or less: Negative - No clinically significant amount of M. pneumoniae IgM antibody detected.
0.77-0.95 U/L: Low Positive - M. pneumoniae-specific IgM presumptively detected.  Collection of a follow-up sample in one to two weeks is recommended to assure reactivity.
0.96 U/L or greater: Positive - Highly significant amount of M. pneumoniae-specific IgM antibody detected.  However, low levels of IgM antibodies may occasionally persist for more than 12 months post-infection.
CPT Code(s): 86738
 
 

 

 

 
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