Influenza antigen

Alphabetical Test listing

Influenza antigen-6696


Effective immediately, all influenza testing is suspended due to low prevalence of flu in the community.

This will help conserve limited collection supplies for COVID-19 testing.

Influenza antigen
Rapid influenza
Nasopharyngeal (NP) swab
Nasopharyngeal washing/aspirate

1. Use a minitip swab appropriate for the test ordered
2. As the minitip swab is removed from the package, bend the wire to the shape of the nasal passage. Maintain sterility of the swab.
3. Tip patient's head back and swab through the nostril into the nasopharynx.
- If any resistance is met in the passageways, do not force the swab. Try the other nostril.
- If the swab cannot be passed through either nostril, it may be bent at a right angle and passed through the mouth to the nasopharynx, taking care to avoid mouth and throat contamination of the swab.
4. Rotate the swab on the nasopharyngeal membrane to allow the swab to absorb organisms.
5. Remove the swab carefully and place in the transport medium.



Liquid transport media (Eswab mini tip, M4RT, UTM, M4, M5, Stuarts or Aimes)


Nasopharyngeal (NP) washing

1. With patient in supine position, tilt head back at 70o angle.
2. Attach sterile syringe to catheter. Insert catheter into nostril and instill 2 to 3 mL normal bacteriostatic saline into one nostril and pharynx.
3. Aspirate fluid out of nostril with syringe.
4. Gently suction with syringe while withdrawing catheter.
5. Place washings into a screw capped container for transport.

Optimal 1-3 mL normal saline (excessive volumes decrease test sensitivity)


Screw cap plastic container (sterile)


Refrigerated - 72 hrs

  • Nasal swabs 
  • Specimens collected using eSwab standard tip collection kits
  • A negative test does not rule out infection.
  • Available Oct 1 - May 31
    • Do not order in the off season, as false positive results are more likely when influenze prevelance is low
    • As an alternative in the off-season, Influenze A/B PCR (8810) may be ordered


AHL - Microbiology: M
Mo - Su
1 day
Stat - 1 hour


87804 x 2