Ordering Recommendation

Follow-up test for patients with documented influenza A. Not a first-line test for the detection of suspected influenza in most clinical situations. Detects and subtypes the two predominant strains of circulating influenza A (H1N1 and H3N2).

Mnemonic
FLUTYPEPCR
Methodology

Qualitative Polymerase Chain Reaction

Performed

Sun-Sat

Reported

1-3 days

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect

Respiratory specimen: Bronchoalveolar lavage (BAL), nasal wash, nasopharyngeal swab, or pleural fluid.

Specimen Preparation

Fluid: Transfer 1 mL respiratory specimen to a sterile container. (Min: 0.5 mL) Also acceptable: Transfer to viral transport media (ARUP Supply #12884) available online through eSupply using ARUP Connect™ or contact ARUP Client Services at (800) 522-2787. Swabs: Place in viral transport media. Place each specimen in an individually sealed bag.

Storage/Transport Temperature

Refrigerated.

Unacceptable Conditions
Remarks

Specimen source required.

Stability

Ambient: 8 hours; Refrigerated: 5 days; Frozen: 2 months

Reference Interval
Interpretive Data

This test targets the H3 and 2009-H1 hemagglutinin genes. The current circulating Influenza A strains are detected and typed (H1N1 and H3N2), however, other H1 and H3 subtypes may also be detected.

Compliance Category

Laboratory Developed Test (LDT)

Note
Hotline History
N/A
CPT Codes

87502

Components
Component Test Code* Component Chart Name LOINC
2007470 Influenza A Virus Subtype Source 31208-2
2007471 Influenza A Virus Subtype by PCR 34487-9
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • Flu H1,H3 PCR
  • Influenza
Influenza A Virus H1/H3 Subtype by PCR