Hepatitis B Virus Surface Antigen with Reflex to Confirmation, Prenatal
Also known as: HBSAG PN
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
Order this test only for prenatal specimens. If results for the HBsAg screen are reactive (≥ 1.0), then HBsAg Confirmation, Prenatal will be added, and additional charges will apply.
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.
FDA ApprovedNew York Approved
Methodology
Immunoassay (CLIA)
Biomarkers
LOINC Codes
- 48767-8
Result Turnaround Time
1 day
Related Documents
For more information, please review the documents below
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.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Unacceptable |
| Refrigerated | 1 week |
| Frozen | Indefinitely (avoid repeated freeze/thaw cycles) |