Influenza A and B, Direct Immunoassay

CPT: 87804(x2)
Print Share

Test Details

Synonyms

  • Flu A and B

Use

Confirm the diagnosis of influenza type A or type B infection. This is a differentiated test and, therefore, will distinguish influenza type A from influenza type B.

Methodology

Direct immunoassay (IA)

Reference Interval

Negative

Specimen Requirements

Specimen

Nasopharyngeal (NP) swab in viral transport medium or NP wash or aspirate

Volume

2 to 3 mL NP wash, 0.5 mL NP aspirate dispersed in at least 2 to 3 mL transport medium or saline, or swab

Minimum Volume

2 mL NP wash, 0.5 mL NP aspirate dispersed in at least 2 to 3 mL transport medium or saline

Container

Viral, Chlamydia, or Mycoplasma culture transport provided by LabCorp, or other appropriate transport medium; sterile leakproof container

Storage Instructions

Refrigerate.

Causes for Rejection

Bacterial swab specimen; specimen received in grossly leaking transport container; dry specimen; specimen submitted in fixative or additive; specimen received in expired transport media or incorrect transport device; inappropriate specimen transport conditions; specimen received after prolonged delay in transport (usually more than 72 hours); specimen stored or transported at room temperature; wooden shaft swab in transport device; unlabeled specimen or name discrepancy between specimen and request label

Clinical Information

Special Instructions

Submit one specimen per test requested. Specify the exact specimen source/origin (eg, nasopharynx). Indicate a specific test number on the request form. Check expiration date of transport; do not use expired devices.

References

Johnston SL, Bloy H. Evaluation of rapid enzyme immunoassay for detection of influenza A virus. J Clin Microbiol. 1993; 31(1):142-143. 8417019
Waner JL, Todd, SI, Shalaby H, et al. Comparison of Directigen FLU-A with viral isolation and direct immunofluorescence for the rapid detection and identification of influenza A virus. J Clin Microbiol. 1991; 29(3):479-482.2037665

LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
186064 Influenza A+B Ag, EIA 33535-6 186065 Influenza A Ag, EIA 46082-4
186064 Influenza A+B Ag, EIA 33535-6 186066 Influenza B Ag, EIA 46083-2
186064 Influenza A+B Ag, EIA 33535-6 186067 Comment 77202-0
Reflex Table for Comment
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 186068 Please note: 186068 Please note: N/A

For Providers

Please login to order a test.

 

© 2018  Laboratory Corporation of America® Holdings and Lexi-Comp Inc. All Rights Reserved.

CPT Statement/Profile Statement

The LOINC® codes are copyright © 1994-2018, 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