Chlamydia Antibody Panel, IgM




Test Mnemonic

CHLAMM

CPT Codes

  • 86632 - QTY (3)

Includes

  • C. trachomatis IgM Titer
  • C. pneumoniae IgM Titer
  • C. psittaci IgM Titer:

Performing Laboratory

ARUP


Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mLSerumSST (Gold) RefrigeratedSeparate serum from cells within 2 hours of collection. Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens. Please mark specimens plainly as 'acute' or 'convalescent.

Alternate Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mLSerumNo additive (Red) RefrigeratedSeparate serum from cells within 2 hours of collection. Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens. Please mark specimens plainly as 'acute' or 'convalescent.

Minimum Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
0.4 mL     

Stability

Environmental Condition Description
AmbientAfter separation from cells: 48 hours
RefrigeratedAfter separation from cells: 2 weeks
FrozenAfter separation from cells: 1 year (avoid repeated freeze/thaw cycles)

Days Performed

Mon - Sat

Turnaround Time

2 - 5 days

Methodology

Name Description
Semi-Quantitative Indirect Fluorescent Antibody 

Reference Range

C. pneumoniae IgM Titer
Sex Age From Age To Type Range Range Unit
       < 1:20 
C. psittaci IgM Titer
Sex Age From Age To Type Range Range Unit
       < 1:20 
C. trachomatis IgM Titer
Sex Age From Age To Type Range Range Unit
       < 1:20 

Special Info

Contaminated, hemolyzed, or lipemic serum will be rejected. Ideally, acute and convalescent samples should be tested simultaneously at the same facility. If the sample submitted was collected during the acute-phase of illness, submit a marked convalescent sample within 25 days for paired testing.

Clinical Info

Differentiate between Chlamydophila species (C. psittaci, C. pneumoniae). Differentiate early IgM response to infection from persistent low-level titer. Because of cross-reactivity, a C. pneumoniae-specific reaction will exhibit titers two-fold or greater than C. trachomatis or C. psittaci serology. Seroconversion, a fourfold or greater rise in antibody titer between acute and convalescent sera, is considered strong evidence of recent infection.