Semi-Quantitative Enzyme-Linked Immunosorbent Assay
Serum separator tube.
Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.15 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."
Contaminated, heat-inactivated, hemolyzed, or severely lipemic specimens.
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
|Effective February 20, 2018|
|0.94 IV or less||Negative - No significant level of detectable B. pertussis IgG antibody.|
|0.95-1.04 IV||Equivocal Repeat testing in 10-14 days may be helpful.|
|1.05 IV or greater||Positive IgG antibody to B. pertussis detected, which may indicate a current or recent exposure/immunization to B. pertussis.|
Laboratory Developed Test (LDT)
|Component Test Code*||Component Chart Name||LOINC|
|2001782||B. pertussis Ab, IgG by ELISA||42330-1|
- B. pertussis IgG ELISA
- Pertussis Antibody
- Pertussis IgG Ab ELISA