HIV-1 RNA Viral Load by Real-Time Polymerase Chain Reaction (PCR) in Plasma
This test measures the amount of HIV-1 genetic material (RNA) in your blood plasma to track how well your current treatment is working and monitor disease progression.
["This test helps doctors manage HIV treatment by checking viral load levels over time."]
Key facts at a glance
- LOINC
- 41513-3
- Short code
- HIV1 RNA # SerPl Probe amp DL=400
- Synonyms
- HIV1 RNA # SerPl Probe amp DL=400
- 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-detection-limit-copies-ml
- CPT
- 86701
- 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 This Test Is Done
Your healthcare provider may order this test if you have HIV to monitor your response to antiretroviral therapy (ART). It helps determine whether your medication is effective and if adjustments are needed. Regular testing is crucial because HIV can become resistant to treatments if viral loads remain high.
How the Test Works
A small blood sample is taken from your arm. The plasma portion is then analyzed using a highly sensitive PCR technique to detect and quantify HIV-1 RNA. This process identifies the genetic material of the virus, allowing doctors to assess its presence and activity.
What to Expect Before the Test
No special preparation is usually needed, but you may be asked to fast or avoid certain medications for a short time if instructed by your provider. Inform your doctor about any medications you’re taking, including over-the-counter supplements or herbal products, as they could affect test results.
What to Expect During the Test
The test involves a simple blood draw from a vein in your arm. The blood is processed to isolate plasma, which is then sent to a lab for analysis. Results are typically available within a few days, depending on lab processing times.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
HIV RNA Viral Load
Frequently asked questions
How often should I get this test?
What do my results mean?
Can lifestyle or diet affect 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