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 mL | Serum | SST (Gold) | Refrigerated | Separate 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 mL | Serum | No additive (Red) | Refrigerated | Separate 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 |
|---|---|
| Ambient | After separation from cells: 48 hours |
| Refrigerated | After separation from cells: 2 weeks |
| Frozen | After 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.