Quick Review Cards for Medical Laboratory Science

Hepatitis Testscontinued Immunology Review 404

TEST

HBV DNA

Hepatitis C

Anti-HCV

HCV RNA

Hepatitis D

(delta hepatitis)

IgM anti-HDV

IgG anti-HDV

HDV RNA

Hepatitis E

SIGNIFICANCE

Current infection

Acute, chronic, or previous infection

Current infection

Acute or chronic infection

Recovery or chronic infection

Current infection

COMMENTS

Detectable 21 days before HBsAg. Used to monitor viral load &

therapy.

Pos should be confirmed by recombinant immunoblot assay

(RIBA) or molecular method.

Used for viral load testing, blood/organ donor screening. HCV

genotyping to determine optimal treatment.

HDV is a defective virus that can only occur in presence of HBV.

Marker of active viral replication. Used to monitor therapy.

Tests are currently not approved by FDA for use in U.S.

Most serological tests for hepatitis are by EIA or CIA. Molecular methods detect infections earlier.