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Test Code LAB2111530 Influenza (Flu) A/B Rapid, Influenza A/B PCR if Negative

Important Note

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

Per CDC recommendation, this test is only performed during times of high flu incidence.

Test Name Alias

Flu A/B Ag Rapid PCR if Neg | Influenza A/B Antigen Rapid, Flu PCR if Negative | 155

Clinical Information

Mandatory Reflex Information:

  • Influenxa A/B Rapid Negative , Influenza PCR will be performed.

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 for A/B Rapid

Available daily, usual TAT 4 hours for Flu PCR

Reference Range

Influenza A: Negative

Influenza B: Negative

Performing Department


Performing Department Laboratory Location

Spectrum Health Big Rapids Laboratory, Big Rapids, MI
Spectrum Health Blodgett Laboratory, Grand Rapids, MI
Spectrum Health Gerber Laboratory, Fremont, MI
Spectrum Health Kelsey Laboratory, Lakeview, MI
Spectrum Health Ludington Laboratory, Ludington, MI
Spectrum Health Pennock Laboratory, Hastings, MI
Spectrum Health Reed City Laboratory, Reed City, MI
Spectrum Health United Laboratory, Greenville, MI
Spectrum Health Zeeland Laboratory, Zeeland, MI


Enzyme immunoassay (EIA)


87804 x2

CDM Code


Epic Test ID


Interface Order Alias


Additional Information

While influenza prevalence in the community remains low, please order Influenza A/B PCR.

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

Reviewed Date