Bordetella pertussis Antibodies, IgA

CPT: 86615
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Test Details

Use

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.

Methodology

Enzyme-linked immunosorbent assay (ELISA)

Reference Interval

Negative: <1.0 index

Specimen Requirements

Specimen

Serum

Volume

0.4 mL

Minimum Volume

0.2 mL

Container

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

LOINC® Map

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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CPT Statement/Profile Statement

The LOINC® codes are copyright © 1994-2017, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. Permission is granted in perpetuity, without payment of license fees or royalties, to use, copy, or distribute the LOINC® codes for any commercial or non-commercial purpose, subject to the terms under the license agreement found at https://loinc.org/license/. Additional information regarding LOINC® codes can be found at LOINC.org, including the LOINC Manual, which can be downloaded at LOINC.org/downloads/files/LOINCManual.pdf