Viral RNA Detection in Serum/Plasma (Nucleic Acid Probe-Based)
This test checks for the presence of viral genetic material in your blood. It helps identify infections caused by viruses that may affect your immune system or organs.
["Detects viral RNA in your blood to guide treatment decisions for infections."]
Key facts at a glance
- LOINC
- 85513-0
- Short code
- HDV RNA Ser NAA+probe-Log IU
- Synonyms
- HDV RNA Ser NAA+probe-Log IU
- 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 looks for genetic material (RNA) from viruses in your blood sample. This RNA can indicate whether you have an active viral infection, even if you don’t yet have symptoms. The test uses a specialized probe to detect specific viral sequences, helping doctors confirm or rule out certain viral infections.
Why It’s Done
Your healthcare provider may order this test if you have symptoms like fever, fatigue, or organ-related issues that could suggest a viral infection. It’s also used in monitoring patients with known viral conditions or after exposure to certain viruses.
Sample Collection and Preparation
A blood sample is taken from a vein in your arm. The blood is processed to separate the serum or plasma, which is then analyzed for viral RNA. This process helps ensure accurate detection of the virus without interference from other substances in the blood.
What to Expect Before the Test
No special preparation is needed, but inform your doctor about any medications or conditions that might affect test results. Avoid alcohol or strenuous activity before the blood draw if instructed.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
Viral RNA Test
Frequently asked questions
How long does it take to get results?
Can I have this test if I’m pregnant?
What if my results are 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