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Test Code HBGP1 Hepatitis B Surface Antigen Prenatal, Serum


Additional Testing Requirements


Testing for acute hepatitis B virus (HBV) infection should also include Hepatitis B Virus Core IgM Antibody, Serum, as during the acute HBV infection "window period," hepatitis B virus surface (HBs) antigen and HBs antibody may not be detected.



Specimen Required


Collection Container/Tube: Serum gel

Submission Container/Tube: Plastic vial

Specimen Volume: 2 mL

Collection Instructions: Within 24 hours, centrifuge and aliquot serum into a plastic vial.


Useful For

Stand-alone prenatal screening test for chronic hepatitis B in pregnant women

 

This test is not useful for diagnosis of hepatitis B during the "window period" of acute hepatitis B virus (HBV) infection (ie, after disappearance of hepatitis B surface antigen and prior to appearance of hepatitis B surface antibody).

 

This test is not offered as a screening or confirmatory test for blood donor specimens.

Reflex Tests

Test ID Reporting Name Available Separately Always Performed
HBNTP HBs Ag Confirmation Prenatal, S No No

Testing Algorithm

If the hepatitis B surface antigen (HBsAg) result is reactive, then HBsAg confirmation testing by different methodology will be performed at an additional charge.

 

For more information see Viral Hepatitis Serologic Profiles.

Special Instructions

Method Name

Chemiluminescence Immunoassay (CIA)

Reporting Name

HBs Antigen Prenatal, S

Specimen Type

Serum

Specimen Minimum Volume

0.75 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Frozen (preferred) 30 days
  Refrigerated  7 days
  Ambient  24 hours

Reject Due To

Gross hemolysis Reject
Gross lipemia Reject
Gross icterus Reject

Reference Values

Nonreactive

 

See Viral Hepatitis Serologic Profiles.

Day(s) Performed

Monday through Sunday

Report Available

1 to 2 days

Performing Laboratory

MCHS- Mankato

Test Classification

This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information

87340

LOINC Code Information

Test ID Test Order Name Order LOINC Value
HBGP1 HBs Antigen Prenatal, S 5196-1

 

Result ID Test Result Name Result LOINC Value
HBGP1 HBs Antigen Prenatal, S 5196-1