Legionella pneumophila Ag [Presence] in Tissue by Immunofluorescence   89595-3

LOINC Code


LOINC code89595-3
nameLegionella pneumophila Ag [Presence] in Tissue by Immunofluorescence
descriptionImmunofluorescence testing of lung biopsy specimens for Legionella pneumophila antigen has over 99% specificity, but only 25-70% of patients with culture-positive disease test positive for the antigen. Therefore, IF cannot be used to rule out Legionella infection, but a positive result is nearly always diagnostic. [http://www.who.int/water_sanitation_health/emerging/legionella.pdf]
statusACTIVE

Fully-Specified Name

componentLegionella pneumophila Ag
propertyPrThr  =  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.
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.
systemTiss  =  Tissue, unspecified
scaleOrd  =  Ordinal:  Ordered categorical responses, e.g., 1+, 2+, 3+; positive, negative; reactive, indeterminate, nonreactive.
methodIF  =  Immune Fluorescence:  Encompasses DFA, IFA, FA. Usually applies to cells and smears examined microscopically so that both the “where” and the “what” can be assessed, but can also be used on fluids in a way similar to ELISA. Does not include Cell binding assays (see CBA IFA above).

Additional Names

short nameL pneumo Ag Tiss Ql IF

Basic Attributes

classMICRO
type1  Laboratory
order vs. observationBoth

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

LG41638-4Legionella

History/Usage

first released
last updated2.64
last change typeADD  - added

Related Names

ACIF
Anticomplement Immunofluorescence
Antigen
Antigens
DFA
FA
Fluorescent antibody
Fluoresent
ID
IFA
Immune fluorescence
Immunoflour
Immunofluor
Immunofluorescence
Infectious Disease
InfectiousDisease
L pneumo
L pneumonphila
Legion
Legionela
Microbiology
Ordinal
Pneu
pneum
Pneumophilia
Point in time
PR
QL
Qual
Qualitative
Random
Screen
Time Resolved Fluorescence
Tissue
Tissue, unspecified
TRF

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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