HBAG - Specimen: Hepatitis B Surface Antigen, Serum

Test Catalog

Test Name

Test ID: HBAG    
Hepatitis B Surface Antigen, Serum

Testing Algorithm Delineates situations when tests are added to the initial order. This includes reflex and additional tests.

If hepatitis B surface antigen (HBsAg) screen is reactive with signal-to-cutoff (S/CO) ratio in the range of 1.00 to 50.0, then HBsAg confirmation will be performed at an additional charge.

 

The following algorithms are available in Special Instructions:

-HBV Infection-Diagnostic Approach and Management Algorithm

-HBV Infection-Monitoring Before and After Liver Transplantation

Specimen Type Describes the specimen type validated for testing

Serum SST

Necessary Information

1. Date of draw is required.

2. Indicate if specimens are from autopsy/cadaver or hemolyzed sources so that the proper FDA-licensed assay can be performed.

Specimen Required Defines the optimal specimen. This field describes the type of specimen required to perform the test and the preferred volume to complete testing. The volume allows automated processing, fastest throughput and, when indicated, repeat or reflex testing.

Collection Container/Tube: Serum gel

Submission Container/Tube: Plastic vial

Specimen Volume: 2 mL

Collection Instructions: Spin down and remove serum from gel within 24 hours.

Forms

If not ordering electronically, complete, print, and send a General Request Form (T239) with the specimen (http://www.mayomedicallaboratories.com/it-mmfiles/general-request-form.pdf).

Specimen Minimum Volume The amount of sample necessary to provide a clinically relevant result as determined by the Laboratory.

0.5 mL

Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected

Hemolysis

Mild OK; Gross reject

Lipemia

Mild OK; Gross reject

Icterus

Mild OK; Gross reject

Other

Plasma

Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the laboratory. Alternate acceptable temperatures are also included.

Specimen TypeTemperatureTime
Serum SSTFrozen (preferred)
 Refrigerated 7 days
 Ambient 24 hours