Influenza A Virus Nucleic Acid Detection by Qualitative Probe-Based Assay (Serum/Plasma)
This test checks for the presence of genetic material from the influenza A virus in your blood plasma or serum. It helps determine if you have an active infection caused by this virus.
["This test helps diagnose recent influenza A infection in your blood."]
Key facts at a glance
- LOINC
- 103787-8
- Short code
- Influenza A H3N2V RNA Spec Ql NAA+probe
- Synonyms
- Influenza A H3N2V 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
What This Test Measures
The test detects the RNA (genetic material) of the influenza A virus using a specialized molecular probe. If the virus is present, the probe binds to its RNA, triggering a detectable signal. This is a qualitative test, meaning it only tells you whether the virus is present or not, not how much.
Why Your Doctor Might Order This Test
Your doctor may recommend this test if you have symptoms like fever, cough, sore throat, or body aches that could suggest influenza. It’s also used in certain settings like hospitals or long-term care facilities to monitor for outbreaks or confirm suspected cases.
When You Might Get This Test
You could receive this test if you’re experiencing flu-like symptoms within a few days of onset, especially if you’ve been exposed to someone with the flu. It’s also sometimes used in research or outbreak investigations.
What to Expect Before the Test
No special preparation is needed. A healthcare provider will draw a small amount of blood from a vein in your arm. You may feel a slight pinch, but it usually doesn’t cause discomfort. The blood sample is then sent to a lab for testing.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
This test is critical for quickly identifying influenza A infections, allowing for prompt treatment with antiviral medications if needed. Early diagnosis can help reduce the severity of illness and prevent potential complications. It’s also useful for public health tracking and controlling outbreaks in communities.
Short name
Influenza A Virus RNA Test (Serum/Plasma)
Frequently asked questions
How soon can I expect results?
Can this test be used for all types of influenza?
What if my test comes back positive?
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