Mycoplasma pneumoniae Antibody, IgG
Label Mnemonic: MYCOG
Epic Lab Code: LAB5697
Downtime Form: A-1a Miscellaneous Request
Commercial Mail-out Laboratory
5231 RCP
356-8593
Specimen(s):
Serum
Specimen Instructions:
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."
Collection Medium:
Red top tube 5 mL (Clot Activator)
Minimum:
Preferred Minimum: 0.5 mL serum Absolute Minimum: 0.1 mL serum
Rejection Criteria:
Contaminated, heat-inactivated, hemolyzed, icteric, or severely lipemic specimens.
Turn Around Time:
1-2 days upon receipt at reference laboratory
Reference Range:
< 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.
Methodology:
Semi-Quantitative Enzyme-Linked Immunosorbent Assay
CPT Code:
86738