Hepatitis B Virus Surface Antigen with Reflex to Confirmation, Prenatal

Also known as: HBSAG PN

Clinical Use

Use

The Hepatitis B Virus Surface Antigen with Reflex to Confirmation, Prenatal test is used for screening of Hepatitis B surface antigen (HBsAg) in pregnant women. Detecting HBsAg is crucial as it helps in identifying women who are carriers of the hepatitis B virus, thereby preventing transmission to the fetus or during delivery. This test ensures early intervention and management to reduce the risk of perinatal transmission of hepatitis B, which can lead to chronic hepatitis B infection in newborns.

Special Instructions

Not provided.

Limitations

This test should not be used for blood donor screening, associated reentry protocols, or for screening human cells, tissues, and cellular- and tissue-based products (HCT/P). There is a possibility of false positives; if the result is not supported by clinical evidence, repeat testing of a new sample is recommended.

Test Details

FDA Approved

New York Approved

Methodology

Immunoassay (CLIA)

Biomarkers

Hepatitis B Surface Antigen

Protein

HBsAg

Expression • Categorical (e.g., Positive / Negative / Indeterminate)

LOINC Codes

Result Codes

48767-8 - Annotation comment Imp

Result Turnaround Time

1 day

Specimen

Serum

Volume

2 mL

Minimum Volume

1.5 mL

Container

ARUP standard transport tube

Collection Instructions

Separate serum or plasma from cells ASAP or within 2 hours of collection.

Storage Instructions

Refrigerated.

Causes for Rejection

Heparinized plasma. Specimens containing particulate material or obvious microbial contamination. Heat-inactivated, severely hemolyzed or lipemic specimens.