89502-9
LOINC Code
| LOINC code | 89502-9 | ||
|---|---|---|---|
| name | |||
| description | This term was created for, but is not limited in use to, the submitter's test strip, a membrane strip pre-coated with a specific set of antigens in parallel lines. If antibodies to any of those antigens are present in the patient's serum, they will bind to the specific antigen. The bound patient antibodies are then detected using labelled anti-human antibodies. Manufacturers call this method by different names, including immunoblot, line blot, and line immunoassay. LOINC uses the immunoblot (IB) method to mean that some electrophoretic/chromatographic separation occurs such that position (size) of the band is part of the assessment (as in Western blot). Because this assay does not involve a separation step but rather uses strips with pre-fixed antigens, the LOINC Method for this term is Line blot. | ||
| status | ACTIVE | ||
Fully-Specified Name | |||
| component | SCL-70 extractable nuclear Ab | ||
| property | ACnc = Arbitrary Concentration | ||
| 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 = Serum | ||
| scale | Qn = Quantitative: The result of the test is a numeric value that relates to a continuous numeric scale. Reported either as an integer, a ratio, a real number, or a range. The test result value may optionally contain a relational operator from the set {<=, <, >, >=}. Valid values for a quantitative test are of the form "7", "-7", "7.4", "-7.4", "7.8912", "0.125", "<10", "<10.15", ">12000", 1-10, 1:256 | ||
| method | Line blot = Line blot: A membrane strip pre-coated with a specific set of antigens in parallel lines that are incubated with antibodies in order to detect the targets of interest. | ||
Additional Names | |||
| short name | ABS; Aby; ANA; ANF; Antby; Anti; Antibodies; Antibody; Antinuclear antibody; anti-topo I; Arbitrary concentration; Autoantibodies; Autoantibody; DNA-Topoisomerase I; ENA; ENA Scl70; NA; Nuc; Point in time; QNT; Quan; Quant; Quantitative; Random; Scleroder | ||
Basic Attributes | |||
| class | SERO | ||
| type | 1 Laboratory | ||
| order vs. observation | ENA Scl70 Ab Se | ||
| example UCUM units | arb U/mL The Unified Code for Units of Measure (UCUM) is a code system intended to include all units of measures being contemporarily used in international science, engineering, and business (www.unitsofmeasure.org) | ||
Member of these Groups | |||
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History/Usage | |||
| first released | |||
| last updated | 2.68 | ||
| last change type | MIN - change to field other than name | ||
| change reason | [arb'U]/mL | ||
Related Names | |||
Copyright © 2026 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2026, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.
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