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Anti-Human Flu Virus Nucleic Acid Test (Qualitative, Probe-Based)

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

This test checks for genetic material from the flu virus in your respiratory sample to determine if you have an active infection.

Quick summary

["Determines flu infection status with a simple, rapid probe-based test."]

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

Key facts at a glance

LOINC
68986-9
Short code
FLUAV H5a RNA Spec Ql NAA+probe
Synonyms
FLUAV H5a RNA Spec 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

The test uses a specialized probe to detect the presence of flu virus genetic material (RNA) in your sample. If the virus is present, the probe will bind to its genetic material, triggering a detectable signal. This method is highly sensitive and designed to quickly identify flu infection without needing to culture the virus.

Sample Collection

You’ll provide a nasal or throat swab sample (or similar respiratory specimen) during a routine visit. The sample is then processed in the lab to extract viral RNA for testing.

What to Expect Before the Test

No special preparation is needed. If you’re experiencing flu-like symptoms, it’s best to get tested as soon as possible for the most accurate result.

What the Results Mean

A positive result means the test detected flu virus genetic material, suggesting you likely have an active flu infection. A negative result means no flu virus was detected in the sample at the time of testing.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Viral RNA Detection (Qualitative)

Frequently asked questions

This test helps confirm flu infection quickly, which can guide treatment decisions (e.g., antiviral medications) and prevent potential spread to others. It’s particularly useful in high-risk populations or during flu season when symptoms may overlap with other illnesses.
Why might I need this test?
Your healthcare provider may recommend this test if you have flu-like symptoms (e.g., fever, cough, fatigue) and suspect flu infection, especially if you’re at higher risk for complications.
How soon will I get my results?
Results are typically available within 24 hours or less, depending on lab processing times. Follow up with your provider for interpretation.
While rare, false results can occur if the sample is contaminated or collected improperly. To improve accuracy, provide a fresh sample if symptoms worsen after testing, and avoid touching the swab before lab processing.
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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