Fluorescent Antibody Test for Antigen Detection in Viral Specimens (e.g., Influenza Virus)
This test checks for the presence of flu viruses in your nasal or throat swab. It helps determine if you have an active flu infection.
["A quick way to confirm flu symptoms with a simple nasal or throat swab test."]
Key facts at a glance
- LOINC
- 44564-3
- Short code
- FLUAV Ag Nose Ql IA
- Synonyms
- FLUAV Ag Nose Ql IA
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- ia
- 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 is taken from your nose or throat to collect a sample. The swab is then tested using a fluorescent antibody method to detect flu viruses. This method uses antibodies that bind to the virus and glow under special light, indicating a positive result.
What to Expect Before the Test
No special preparation is needed. You may experience mild discomfort from the swab, but it typically takes only a few seconds. If you have a cold or flu-like symptoms, this test can be done at the same time as other rapid flu tests.
What to Expect After the Test
You can return to your normal activities immediately after the test. If you receive a positive result, follow your healthcare provider’s advice for managing symptoms and possible treatment options.
Possible Results
A positive result means the test detected flu viruses in your sample. A negative result suggests the virus was not found at the time of testing. False negatives can occur if the test was done too early or if the virus is not actively present.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
This test is crucial for diagnosing influenza quickly, especially in outbreaks or during flu season. Early identification allows for prompt treatment with antiviral medications, which can reduce severity and duration of illness. It also helps healthcare providers manage patient care and public health efforts by tracking flu activity.
Short name
Influenza Virus Detection (Flu Test)
Frequently asked questions
Why might I need this test?
What does a positive result mean?
Can I get this test at home?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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