Hepatitis B Virus DNA Quantification

What it is for

Determines replication activity alongside HBsAg, HBeAg and ALT; identifies candidates for antiviral therapy per WHO and AASLD thresholds, monitors virologic response to nucleos(t)ide analogues, and assesses risk in pregnancy to guide neonatal prophylaxis.

Limitations

Viral load must be interpreted together with serology and liver function; a single value does not distinguish phases of infection. Assays differ in linear range at the low end.

Before you test

For individuals: a standard blood draw is required. Bring prior results if available so your clinician can compare trends.

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

Also known as

• HBV DNA
• HBV viral load