Ordering Recommendation

Mycoplasma pneumoniae Antibodies, IgG & IgM (0050399) is preferred.

New York DOH Approval Status

This test is New York state approved.

Specimen Required

Patient Preparation
Collect

Serum separator tube.

Specimen Preparation

Separate serum from cells ASAP or within 2 hours of collection. Transfer 0.5 mL serum to an ARUP Standard Transport Tube. (Min: 0.1 mL) Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens. Mark specimens plainly as "acute" or "convalescent."

Storage/Transport Temperature

Refrigerated.

Unacceptable Conditions

Bacterially contaminated, heat-inactivated, hemolyzed, icteric, lipemic, or turbid specimens.

Remarks
Stability

After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)

Methodology

Semi-Quantitative Enzyme-Linked Immunosorbent Assay

Performed

Sun-Sat

Reported

1-3 days

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.

Interpretive Data



Compliance Category

FDA

Note

Hotline History

N/A

CPT Codes

86738

Components

Component Test Code* Component Chart Name LOINC
0050398 Mycoplasma Pneumoniae Antibody IgM 5256-3
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.

Aliases

  • M pneumoniae antibody IgM
  • M pneumoniae IgM
Mycoplasma pneumoniae Antibody, IgM