Hepatitis B Surface Antigen
Order Name
HEP AG BS
Test Number: 3603000
Revision Date 10/01/2022
Test Number: 3603000
Revision Date 10/01/2022
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Hepatitis B Surface Antigen
|
Chemiluminescence Assay | 5195-3 |
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 1 mL (0.5) | Serum | Clot Activator SST | Refrigerated |
| Alternate 1 | 1 mL (0.5) | Plasma | Lithium Heparin PST (Light Green Top) | Refrigerated |
| Instructions | Stability: Ambient 1 day. Refrigerated 7 days. Frozen > 7 days. | |||
| GENERAL INFORMATION | |
|---|---|
| Testing Schedule | Mon - Fri |
| Expected TAT | 1 - 3 days |
| Clinical Use | First serologic marker appearing in the serum 6-16 weeks following hepatitis B infection and until acute infection disappears 1-2 months after onset of symptoms. Persistence of HbsAg after more than 6 months indicates development of chronic carrier state or chronic liver disease. |
| Notes | A Positive Hepatitis B Surface Antigen test will order the following for Confirmation. Order Code: (3603005) Hepatitis B Surface Antigen Confirmation | Result Code: (3603005) Hepatitis B Surface Antigen Confirmation |
| CPT Code(s) | 87340 (Positive results will order a confirmation with and additional 87341) |
| Internal Comments | updated lab section ak 9/19/17 updated SU - JK 11/8/17 added Freeze if testing cannot be started within 7 days. - JK 6/15/18 Specimen stability: Room Temp = 8 hours; Refrigerated = 7 days, Freeze if testing cannot be started within 7 days. to Stability: Ambient 1 day. Refrigerated 6 days. Frozen > 6 days. JK 10/17/19: TAT updated from daily to 1 - 3 days SN 8/26/20 added confirmation info - JK |
| Service Provided By |  |
| Lab Section | Chemistry |