Viral RNA in Serum or Plasma (Quantitative)
This test measures the amount of viral genetic material present in your blood or plasma. It helps doctors monitor infections caused by viruses, such as certain coronaviruses or other pathogens.
["This test helps track viral load and guide treatment decisions."]
Key facts at a glance
- LOINC
- 59150-3
- Short code
- VRE Anal Ql Cult
- Synonyms
- VRE Anal Ql Cult
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- organism-specific-culture
- CPT
- 86038
- 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 Is This Test Done?
Your healthcare provider may order this test if you have symptoms of a viral infection, such as fever, fatigue, or respiratory issues, or if you’ve been exposed to a virus that can spread through bodily fluids. It’s also used in research or clinical settings to assess viral presence in blood.
What Does the Test Involve?
A blood sample is taken from a vein in your arm. The sample is then processed to detect viral RNA, which is analyzed using advanced laboratory techniques to determine its concentration.
What Are Possible Results?
Results are typically reported as a quantitative measurement of viral RNA copies per milliliter (or another unit). A positive result indicates the presence of viral genetic material, while a negative result means it was not detected in the sample.
What Does a Positive or Negative Result Mean?
A positive result suggests active infection, which may require further testing or treatment. A negative result means no detectable viral RNA was found in this sample, but this does not always mean the infection is completely cleared—other tests may be needed for confirmation.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance: This test is critical for diagnosing viral infections, monitoring disease progression, and evaluating the effectiveness of antiviral treatments. It helps healthcare providers make informed decisions about patient care, especially in cases where rapid detection is essential.
Short name
Viral RNA Level
Frequently asked questions
How long does it take to get my test results?
Can I eat or drink before this test?
Is there any risk or discomfort with this test?
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