Hepatitis B virus core Ab [Presence] in Serum, Plasma or Blood by Rapid immunoassay 75378-0
LOINC Code
| LOINC code | 75378-0 | ||
|---|---|---|---|
| name | Hepatitis B virus core Ab [Presence] in Serum, Plasma or Blood by Rapid immunoassay | ||
| description | Hepatitis B core Ab (HBcAb) rapid tests are available in test strip and cassette formats from manufacturers in various countries including the US, Singapore, and China. Hepatitis B core Ab (HBcAb) rapid tests are useful screening tests for acute hepatitis B because HBcAb is the first antibody to appear in acute hepatitis B infections. During the window period of acute hepatitis B, (after HBsAg disappears and before HBsAb appears), HBcAb is sometimes the only serologic marker detected. High levels of HBcAb persist long term, making these rapid tests useful for detecting past history of hepatitis B infection. This term was based on, but not limited in use to, the iCare One Step HBcAb test kit which is a is a competitive colloidal gold enhanced immunoassay for the detection of anti-HBc antigen(HBcAb) in human serum or plasma. Testing can be done in approximately 15 minutes. | ||
| status | ACTIVE | ||
Fully-Specified Name | |||
| component | Hepatitis B virus core Ab B = Buccal | ||
| property | PrThr = Present or threshold: The Property PrThr stands for “Presence or Threshold”, meaning either a) the actual presence or absence of an analyte, or b) that the amount of analyte detected is over some predetermined threshold. | ||
| time | Pt = Point in time: To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements. | ||
| system | Ser/Plas/Bld Ser = Serum Plas = Plasma Bld = Whole blood | ||
| scale | Ord = Ordinal: Ordered categorical responses, e.g., 1+, 2+, 3+; positive, negative; reactive, indeterminate, nonreactive. | ||
| method | IA.rapid | ||
Additional Names | |||
| short name | HBV core Ab SerPlBld Ql IA.rapid | ||
Basic Attributes | |||
| class | MICRO | ||
| type | 1 Laboratory | ||
| order vs. observation | Observation | ||
Associated Observations | |||
LOINC codes that represent optional associated observation(s) for a clinical observation or laboratory test. A LOINC term may represent a single associated observation or panel containing several associated observations. | |||
Member of these Groups | |||
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History/Usage | |||
| first released | |||
| last updated | 2.56 | ||
| last change type | MIN - change to field other than name | ||
| change reason | The PrThr property is used for LOINC terms whose results are reported using an ordered categorical scale, regardless of whether or not an internal threshold was used to make that determination. This change was approved by the Laboratory LOINC Committee in June 2016.; The EIA method, which was always intended to cover more than just enzyme-linked immunoassay and whose display name for the long common name has always been Immunoassay, was renamed IA in order to eliminate ambiguity about whether the method has a broader meaning than just enzyme-linked immunoassay. Likewise, EIA.rapid was renamed IA.rapid. These changes were approved by the Laboratory LOINC Committee in June 2016. | ||
Related Names | |||
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