Stanford Hospital & Clinics and Lucile Packard Children’s Hospital
Test Name : Hepatitis B Surface Antibody, Quantitative Order Code : HBSQT
Note: Interpretation of results: Reference Value: Unvaccinated: Negative; Vaccinated: Positive. Interpret result with caution in immunosuppressed patients, including HIV infected. HEP B SURFACE AB <10.0 mIU/mL: Negative. Patient is presumed to be not immune to HBV infection. HEP B SURFACE AB =>10.0 but <12.0 mIU/mL: Positive. Patient's Hep B Surface AB level is on the low side of what's considered adequate immunity to HBV infection. Repeat testing in a few weeks, and/or a booster dose of HBV vaccine is recommended, especially if the patient is at risk for exposure. HEP B SURFACE AB >12.0 mIU/mL: Positive. Patient is considered immune to HBV infection.
Synonyms: Antibody to Hepatitis B Surface Ag; HBsAb; Hepatitis B Surface Antibody-Quant; Hepatitis Vaccination Confirmation; HBV Surface Antibody
Specimen Type: Preferred: Serum; Acceptable: Plasma
Container Type: Preferred: SST Gold-top gel tube; Acceptable: Mint-top gel tube (lithium heparin); Red-top tube (Plain) no additive; Lavender-top tube (EDTA)
Required Volume: 3 mL whole blood; 1.5 mL serum or plasma
Minimum Volume (Pediatric): 1 mL Whole Blood, or 0.5 mL serum or plasma
Methodology: Immunoassay
Turnaround Time: 3-5 days
Special Handling: Transport whole blood at room temperature or refrigerated. Centrifuge and transfer serum and plasma to a separate tube. Transport refrigerated. If transport is greater than 2 days, transport serum and plasma frozen.
CPT Codes: 86706
Causes For Rejection: Excessively hemolyzed, icteric, or lipemic specimens. Gross bacterial contamination.
Department: Special Chemistry