LOINC Home

{component}   LP432695-7

Laboratory   LP29693-6

Chemistry and Chemistry - challenge   LP343631-0

Chemistry - non-challenge   LP7786-9

Enzymes (see also Inborn errors metabolism lysosomal)   LP31392-1

Cytochrome B5 reductase   LP15524-9

Cytochrome B5 reductase | Red Blood Cells | Chemistry - non-challenge   LP382947-2

Cytochrome B5 reductase [Presence] in Red Blood Cells   51603-9

LOINC Code


LOINC code51603-9
nameCytochrome B5 reductase [Presence] in Red Blood Cells
statusACTIVE

Fully-Specified Name

componentCytochrome b5 reductase
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.
systemRBC  =  Erythrocytes
scaleOrd  =  Ordinal:  Ordered categorical responses, e.g., 1+, 2+, 3+; positive, negative; reactive, indeterminate, nonreactive.
method

Additional Names

short nameCyB5 Reduct RBC Ql

Basic Attributes

classCHEM
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.

History/Usage

first released
last updated2.66
last change typeNAM  - change to Analyte/Component
change reasonThe 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.; Updated Component from "NADH methemoglobin reductase" to "Cytochrome b5 reductase" per the recommended scientific nomenclature [https://enzyme.expasy.org/EC/1.6.2.2] and to align across LOINC terms.

Related Names

B5 Reductase, NADH-Cytochrome
Chemistry
CyB5 Reduct
cyt
Erythrocytes
Methemoglobin reductase
NADH Cytochrome B5 Reductase
NADH Methemoglobin Reductase
NADH-Cytochrome B5 Reductase
Ordinal
 Point in time
PR
QL
Qual
Qualitative
Random
Red blood cells
Red blood corpusles
Screen

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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