ARUP's Laboratory Test Directory
| 0050397: Mycoplasma pneumoniae Antibody, IgG |
| Test Mnemonic: MYCO-G | |
|
Methodology: Enzyme-Linked Immunosorbent Assay
Performed: Sun-Sat Reported: 1-3 days |
| Specimen Required: | |
|
Collect: One 4 mL SST.
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, hemolyzed, icteric, heat-inactivated, or contaminated specimens. Stability: After separation from cells: Ambient: 2 days; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles) |
|
| Reference Interval: |
|
< 0.10 U/L: Negative 0.10-0.32 U/L: Equivocal > 0.32 U/L: Positive |
| Interpretive Data: | |
|
Over 50% of healthy adults have a relatively high background of specific M. pneumoniae IgG antibodies in their sera, probably because of past M. pneumoniae infections. Therefore, paired sera obtained with a time interval of 1 to 3 weeks are highly recommended in adults to confirm reinfection by M. pneumoniae, which is demonstrated by a significant change in IgG antibodies. A significant change is indicated if one sample is above 0.32 U/L and the other is below 0.20 U/L.
|
| CPT Code(s): | |
| 86738 |