Zika virus IgM Ab [Units/volume] in Cerebral spinal fluid by Immunoassay   80618-2

LOINC Code


LOINC code80618-2
nameZika virus IgM Ab [Units/volume] in Cerebral spinal fluid by Immunoassay
descriptionQuantitative analysis of Zika virus IgM antibodies in cerebral spinal fluid (CSF) specimens by immunoassay-based methods. Similar to most EIA tests, results are reported as a ratio of optical densities. Zika virus IgM antibodies become detectable 4-8 days after the onset of symptoms and persist for months. Since IgM does not normally cross the blood-brain barrier, detection of Zika virus IgM in CSF implies CNS infection. Serological cross-reactivity is strong between Zika and other flaviviruses, especially Dengue virus. Therefore, positive results for this test are presumptive and should be confirmed by neutralizing antibody testing [LOINC: 80621-6]. Negative results for this test on a sample taken during the first week of illness does not rule out infection and the test should be repeated on a convalescent sample.
statusACTIVE

Fully-Specified Name

componentZika virus Ab.IgM
propertyACnc  =  Arbitrary Concentration
timePt  =  Point in time:  To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements.
systemCSF  =  Cerebral spinal fluid
scaleQn  =  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
methodIA  =  Immunoassay:  Encompasses all immunoassays with a few exceptions, including Immune Blot and Immune Fluorescence, which were created based on historic usage.

Additional Names

short nameZIKV IgM CSF IA-aCnc

Basic Attributes

classMICRO
type1  Laboratory
order vs. observationBoth
example UCUM units{EIA_index}
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)
example unitEIA index

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

LG32774-8Zika virus

History/Usage

first released
last updated2.56
last change typeMIN  - change to field other than name

Related Names

ABS
Aby
Antby
Anti
Antibodies
Antibody
Arbitrary concentration
Autoantibodies
Autoantibody
Cerebral spinal fluid
Cerebrospinal Fl
EIA
ELFA
ELISA
Enzyme immunoassay
IAA
ID
Immune globulin M
Immunoglobulin M
Infectious Disease
InfectiousDisease
MEIA
Microbiology
Neuro
Neurology
Point in time
QNT
Quan
Quant
Quantitative
Random
Spinal Fl
Spinal Fld
Spinal Flu
Spinal Fluid
SUDS
ZIKV

Copyright © 2024 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2024, 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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