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HIV-1 Qualitative Viral Load (Probe-Based)

Published: August 9, 2026Updated: August 16, 2026

This test detects the presence of HIV-1 genetic material in your blood to help monitor your infection and treatment progress.

Quick summary

This test helps doctors check if your HIV is active and whether your treatment is working.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
78008-0
Short code
HIV 1 pro DNA XXX MC NAA+probe-EntNum
Synonyms
HIV 1 pro DNA XXX MC NAA+probe-EntNum
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
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

What This Test Measures

The test looks for HIV-1 genetic material (viral DNA or RNA) using a specialized probe. It does not measure the actual virus directly but identifies its genetic signature to assess viral activity.

Why It’s Ordered

Your healthcare provider may order this test to monitor how well your HIV treatment is controlling the virus, check for treatment resistance, or evaluate viral load before starting new medications.

How the Test Works

A small blood sample is taken, and the viral genetic material is detected through a probe-based immunoassay. This method is highly sensitive and specific for identifying HIV-1.

Sample Requirements

This test uses whole blood or plasma/serum. Your provider will specify the exact sample type needed for your test.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

HIV-1 Viral Load Screening

Frequently asked questions

Your viral load tells your doctor how active your HIV infection is. A very low viral load (close to zero) usually means your treatment is working well, while a higher viral load may indicate treatment failure or resistance.
This test is qualitative, meaning it only tells you if HIV-1 genetic material is present (positive) or not (negative), not the exact amount.
If your test is positive, it means your HIV is active, and you should follow up with your healthcare provider to adjust your treatment plan.
This test is not used to diagnose HIV infection for the first time. A confirmatory test (like an antibody test) is needed if initial screening is positive.
How long does it take to get results?
Results are typically available within 24 to 48 hours, depending on your lab’s processing time.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

Medical Disclaimer

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