Bordetella pertussis Antibodies, IgA

CPT: 86615
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Test Details


Establish evidence of early/acute infection with Bordetella pertussis, the causative agent of whooping cough. The presence of specific IgA in a single sample may indicate an acute infection and is considered suggestive of recent infection or a presumptive diagnosis of a supporting clinical presentation. Initially, in infants with pertussis, IgA antibody may not be detected; however, IgA reaches detectable levels six to seven weeks after infection.


Enzyme-linked immunosorbent assay (ELISA)

Reference Interval

Negative: <1.0 index

Specimen Requirements




0.4 mL

Minimum Volume

0.2 mL


Red-top tube or gel-barrier tube

Storage Instructions

Refrigerate. Serum samples can be stored at 2°C to 8°C for up to seven days.

Causes for Rejection

Hemolysis; lipemia; gross bacterial contamination


Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
164384 B pertussis IgA Ab 29657-4 164387 B pertussis IgA Ab index 29657-4

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