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Influenza Virus Nucleic Acid Detection by Respiratory Probe (Qualitative)

Published: August 9, 2026Updated: August 16, 2026

This test checks for the presence of genetic material from the influenza virus in your respiratory secretions, helping determine if you have an active flu infection.

Quick summary

["Quickly identifies flu infection to guide treatment and reduce spread."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
88599-6
Short code
FLUAV RNA Lower resp Ql NAA+probe
Synonyms
FLUAV RNA Lower resp Ql NAA+probe
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
probe-amp-tar
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

How the Test Works

A swab sample is collected from your nose or throat. The probe detects genetic material (RNA) from the influenza virus using advanced molecular techniques, providing results in minutes.

When You Might Need This Test

Your healthcare provider may recommend this test if you have flu-like symptoms (fever, cough, sore throat) or if you’re at higher risk for complications from the flu, such as young children, elderly adults, or those with chronic health conditions.

What to Expect Before the Test

No special preparation is needed. You may rinse your mouth with water before swabbing to avoid contamination. Avoid eating or drinking immediately before the test if instructed.

What to Expect During the Test

The test involves a quick, painless swab of your nasal or throat area. The sample is then analyzed in a lab or point-of-care device to detect influenza virus RNA.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Positive results confirm an active flu infection, allowing for prompt antiviral treatment to reduce severity and duration. Negative results help rule out flu, especially if symptoms improve or persist beyond expected timelines.

Short name

Influenza Virus RNA Test (Qualitative)

Frequently asked questions

Why was I asked to take this test?
Your healthcare provider may have recommended it to confirm flu infection, monitor symptoms, or assess risk of spreading the virus to others.
What does a positive result mean?
A positive result means the test detected genetic material from the influenza virus, indicating you likely have an active flu infection. Follow your provider’s guidance for treatment and recovery.
Can I still spread the flu if the test is negative?
Even if the test is negative, flu symptoms can sometimes take time to develop. It’s important to practice good hygiene (handwashing, covering coughs) and avoid close contact with others until fully recovered.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy