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Test Code LAB3255 Influenza (Flu) A/B PCR

Important Note

Any add-on testing for Respiratory FilmArray (LAB3359) must be performed within 72 hours of specimen collection.

Test Name Alias

Flu A/B PCR | Influenza A/B Antigen, PCR | 156

Icons & Photos

 3-mL UTM/Swab set (UTM medium with Regular Flocked Swab)


Specimen Requirements

Submit only one of the following specimens:


Specimen Type: Nasopharyngeal swab (NP)
Container/Tube: 3-mL UTM/Swab set (UTM medium with Regular Flocked Swab))
Collection Instructions:

  1. Tilt the head of the patient, gently insert the swab through one of the nostrils and into the nasal passage.
  2. Rotate the swab tip several times across the mucosal surface.
  3. Remove the swab and insert into the red top tube of viral transport medium (UTM) immediately.
  4. Push the swab into the tube and break the plastic shaft swab at the break line.
  5. Replace cap and screw on tightly.
  6. Label specimen with at least 2 patient identifiers (usually name and date of birth)

Specimen Transport Temperature

Refrigerate or on ice

Specimen Stability

Refrigerate: 24 hours

Laboratory Retention: 3 days

Test Frequency

Available 24 hours, usual TAT 4 hours

Reference Range

Negative for Influenza A, B

Performing Department


Performing Department Laboratory Location

Spectrum Health Regional Laboratory, Grand Rapids, MI
Spectrum Health Big Rapids Laboratory, Big Rapids, MI


Polymerase Chain Rection (PCR)



CDM Code

4148380, 4148381

Epic Test ID


Interface Order Alias



Influenza A PCR: 34487-9

Influenza B PCR: 40982-1


Mayo Access Code


Additional Information

As of 10/3/2017, Nasopharyngeal wash/aspirate is no longer an acceptable specimen type.

Reviewed Date