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Hepatitis B Core Antibody, IgM
| Item | Value |
|---|---|
| Approval req'd? | No |
| Available Stat? | No |
| Test code | CORM |
| Test group | Hepatitis |
| Performed by | Immunology |
| In House Availability | Monday-Friday (day shift) |
| Method | Chemiluminescent Immunoassay |
| Container type | Gold top |
| Amount to Collect | 3 mL blood |
| Sample type | Serum |
| Preferred volume | 1.5 mL serum |
| Min. Volume | 1 mL serum |
| Processing notes | Freeze at -20C |
| Normal range | Negative |
| Synonyms | HBcAb, IgM; HBV; HBV; anti-HBc; anti-HBcAg |
| Turn around times | 1-8 days |
| Additional information | The antibody found earliest in acute HBV infection, IgM will usually be present during the "window" period after HBsAg production has declined to undetectable levels, often before anti-HBs is measurable. It usually persists for up to 6 months, but may occasionally persist for as long as 24 months, or even remain at detectable levels if active virus replication is continuing with chronic hepatitis B infection. Positive results are automatically forwarded to California public health per regulations. However, this does not absolve the ordering provider from any additional reporting if such is required. |
| LOINC code | 5185-4 |
| Last Updated | 5/9/2011 11:46:15 AM |
| Entry Number | 478 |
If you have additional questions regarding this test, please call: 415-353-1667