Hepatitis B Prenatal Screen
| TEST NAME |
Hepatitis B Surface Antigen |
| DISEASE/DISORDER |
Hepatitis |
| ALTERNATE NAME(S) |
HBsAg |
| METHODOLOGY |
Chemiluminescent Microparticle Immunoassay (CMIA) on the Abbott Architect Analyzer |
| SPECIAL INSTRUCTIONS |
Hepatitis B surface antigen testing.
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| ORDERING INFORMATION |
Lab Web Portal
PTBMIS:
- Test Order Code Suggestion: HBsAgOB
- Test Name Suggestion: Hep B surface Ag Prenatal
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Patient Preparation
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| Specimen Collection |
- Acceptable Specimen Sources/Type(s):
- Whole blood in serum separator tube (SST) |
| Specimen Labeling |
- Specimen must be labeled with at least two unique patient identifiers and match accompanying test order.
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| Specimen Processing |
- Follow the tube manufacturer's processing instructions for collection tubes.
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| Specimen Storage and Preservation |
- Specimens may be stored on or off the clot, red blood cells, orseparator gel for:
- Up to 24 hours post collection at 2- 30°C or
- Up to six (6) days at 2 - 8 °C
- If testing will be delayed more than six (6) days aliquot serum and store at (-20)°C or colder.
- Avoid three (3) or more freeze/thaw cycles.
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| Specimen Transport |
- Ship specimens at 2 to 8°C on cold packs.
- Specimen must be placed in a biohazard bag with absorbent material and should be shipped to the laboratory on the day of collection, if possible.
- All infectious substance shipments must conform to U.S. Department of Transportation (DOT) Hazardous Materials Regulations (HMR 49 C.F.R. Parts 171-180).
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| Specimen Acceptability and Rejection |
- Serum specimens collected in serum coagulation (red top) tubes or serum separator tubes will be accepted.
- Grossly hemolyzed, lipemic, or microbially contaminated specimens will be rejected.
- Cadaveric specimens will be rejected.
- Specimens with clerical errors in the lab order or on the specimen tube will be rejected.
- Specimens broken in transit will be rejected.
- Specimens leaking in transit may be rejected after assessment of viability and contamination.
- Specimens with insufficient volumes of serum will be rejected.
- Specimens transported or stored at incorrect temperatures will be rejected.
- Specimens received after the expiration of viability will be rejected.
- Unlabeled or improperly identified specimens will be rejected.
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| Testing Location |
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This Page Last Updated: May 18, 2026 at 10:42 PM