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Influenza Virus RNA (Qualitative) in Respiratory Specimen

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

This test checks for genetic material from the influenza virus in your respiratory secretions, such as nasal swabs or throat swabs.

Quick summary

["It helps determine if you have an active influenza infection."]

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

Key facts at a glance

LOINC
105076-4
Short code
FLUAV H1 RNA Spec Ql
Synonyms
FLUAV H1 RNA Spec Ql
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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

Why This Test Is Done

Your healthcare provider may order this test if you have symptoms like fever, cough, sore throat, or body aches, especially during flu season. It can also be used to confirm a suspected flu diagnosis in patients who are at higher risk of complications, such as older adults or those with chronic health conditions.

How the Test Works

A healthcare professional will collect a sample from your nose or throat using a swab. The swab is then tested in a lab to detect the presence of the influenza virus’s RNA, which is a genetic marker. The result is qualitative, meaning it only tells you whether the virus is present or not.

What to Expect Before the Test

No special preparation is needed for this test. You may feel slight discomfort from the swab, but it typically takes only a few seconds. If you have a cold or congestion, the swab may be more uncomfortable, but this is normal.

What to Expect During the Test

The test is quick and painless. You may be asked to blow your nose gently before the swab is inserted, or it may be done while you’re sitting comfortably. The swab is then sent to a lab for analysis.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

A positive result indicates the presence of the influenza virus, confirming an active infection. This can guide treatment decisions, such as starting antiviral medications early to reduce symptoms and complications. A negative result means the virus was not detected in the sample at the time of testing, which may prompt retesting or other diagnostic steps.

Short name

Influenza RNA Test

Frequently asked questions

What Does a Positive Result Mean?
A positive result means the test detected genetic material from the influenza virus in your sample. This suggests you likely have an active flu infection and may need antiviral treatment or other supportive care to manage symptoms.
What If I Get a Negative Result?
A negative result means the virus was not found in the sample at the time of testing. This could mean the infection is no longer present, you were tested too early, or another cause for your symptoms exists. Your provider may recommend retesting or other tests if needed.
How Soon Will I Get My Results?
Results are typically available within 24 to 48 hours, depending on lab processing times. Your healthcare provider will contact you with the results and next steps.
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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