Nucleic Acid Detection in Blood (e.g., for Viral or Bacterial Pathogens) via Probe-Based Assay
This test checks for genetic material from certain viruses or bacteria in your blood, often used to diagnose infections or guide treatment decisions.
["Helps identify infections that may not show up with standard blood tests."]
Key facts at a glance
- LOINC
- 5004-7
- Short code
- EBV DNA Tiss Ql NAA+probe
- Synonyms
- EBV DNA Tiss 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 presence of specific genetic sequences (nucleic acids) from pathogens such as viruses (e.g., COVID-19, influenza) or bacteria (e.g., certain bacterial infections). These sequences are extracted from your blood sample and analyzed using a molecular probe method.
How the Test Works
Your blood sample is processed to isolate genetic material. A specialized probe binds to matching sequences of the pathogen’s DNA or RNA, allowing for precise detection. The result indicates whether the pathogen’s genetic material is present.
Common Uses
This test is typically used to diagnose infections when symptoms are present but standard tests (like cultures or antibody tests) are inconclusive. It can also help monitor treatment progress or detect infections in high-risk groups.
Sample Collection and Preparation
A blood sample is drawn from a vein, usually in your arm. The sample is then processed in a lab to extract genetic material for testing. This method is non-invasive and typically requires no special preparation beyond standard blood draw guidelines.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
Viral/Bacterial DNA/RNA Test (Blood)
Frequently asked questions
This test plays a critical role in early detection of infections that may not be visible through other tests, such as bacterial or viral pathogens that cause illnesses like pneumonia, sepsis, or respiratory infections. Early identification can lead to quicker treatment and better outcomes.
How long does it take to get results? Results are usually available within 24 to 48 hours, depending on lab processing times and your healthcare provider’s workflow.
What if my test results are positive? A positive result suggests the presence of a pathogen’s genetic material. Your healthcare provider will discuss next steps, which may include starting treatment, additional testing, or monitoring.
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