HIV-1 Viral Load

What it is for

Establishes baseline viral load before antiretroviral therapy, monitors suppression (target <50 copies/mL), detects virologic failure early, and screens high-risk donors in blood-bank algorithms.

Limitations

Low-level results (50–200 copies/mL) can reflect assay noise; confirmed values above 200 copies/mL on suppressive therapy warrant adherence review and resistance testing. Results are platform-dependent.

Before you test

For individuals: the test needs a blood draw. If you are on treatment, keep taking it normally. Ask your clinician how the result relates to your treatment plan.

Health information only. This guide does not diagnose or replace advice from a healthcare professional.

Also known as

• HIV RNA
• HIV PCR quantitative