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Test Code LAB471 Hepatitis B Surface Antigen

Performing Laboratory

Asante Rogue Regional Medical Center

Specimen Minimum Volume

0.75 mL

Billing Code

2070258

Methodology

Chemiluminescence (CLIA)

Specimen Requirements

Yellow (Gold) top tube (SST)

Plain Red top tube

 

Outpatient clients MUST draw SST

Day(s) Test Set Up

Tests are performed Monday through Friday.

Positive results are called to physician

Positive results also require public health reporting and follow-up

Test Classification and CPT Coding

87340

Infectious agent antigen detection by enzyme immunoassay technique, qualitative or semiquantitative, multiple-step method; hepatitis B surface antigen (HBsAg)

Additional Information

HBsAg is the surface antigen of the hepatitis B virus and its presence indicates a case of acute or chronic hepatitis B. Additionally, this test is used to evaluate risk in needlestick injuries in health care facilities and guide use of hepatitis B immune globulin.  It is also a part of the prenatal workup.

 

Postive test results are sent to ARUP Laboratories for confirmation testing. ARUP test ID: 0020128

Performing Department

Chemistry

Reasons for Rejection

Icterus

Lipemia

Hemolysis

Quantity not sufficient (QNS)

Lack of Two Patient Identifiers:

         1-Patient’s First & Last name 

         2-Patient’s Date of Birth

Specimen Transport Temperature and Stability

Centrifuge and refrigerate within 2 hours of collection

Serum stable 7 days refrigerated at 2° to 8° C

Freeze for longer storage