LOINC
Version 2.73

100839-0Vitamin A/Retinol binding protein [Ratio] in Serum or PlasmaActive

Part Descriptions

LP31687-4   Vitamin A
Retinol and derivatives of retinol that play an essential role in metabolic functioning of the retina, the growth of and differentiation of epithelial tissue, the growth of bone, reproduction, and the immune response. Dietary vitamin A is derived from a variety of CAROTENOIDS found in plants. It is enriched in the liver, egg yolks, and the fat component of dairy products. Source: National Library of Medicine, MeSH 2006

LP31687-4   Vitamin A
Vitamin A, a group of fat-soluble retinoids, including retinol, retinal, and retinyl esters, is involved in immune function, vision, reproduction, and cellular communication. Vitamin A is critical for vision and also supports cell growth and differentiation, playing a critical role in the normal formation and maintenance of the heart, lungs, kidneys, and other organs. Two forms of vitamin A are available in the human diet: preformed vitamin A (retinol and its esterified form, retinyl ester) and provitamin A carotenoids. Preformed vitamin A is found in foods from animal sources, including dairy products, fish, and meat (especially liver). The various forms of vitamin A are solubilized into micelles in the intestinal lumen and absorbed by duodenal mucosal cells. Most of the body's vitamin A is stored in the liver. Concentrations of preformed vitamin A are highest in liver and fish oils. Other sources of preformed vitamin A are milk and eggs, which also include some provitamin A. Most dietary provitamin A comes from leafy green vegetables, orange and yellow vegetables, tomato products, fruits, and some vegetable oils. Source: National Institutes of Health Office of Dietary Supplements, NIH Factsheet: Vitamin A

Fully-Specified Name

Component
Vitamin A/Retinol binding protein
Property
Ratio
Time
Pt
System
Ser/Plas
Scale
Qn
Method

Additional Names

Short Name
Vitamin A/Retinol Bind Prot SerPl-Rto
Display Name
Vitamin A/Retinol binding protein [Ratio]
Consumer Name Alpha
Vitamin A/Retinol binding protein, Blood

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 2.73
Last Updated
Version 2.73
Order vs. Observation
Both

Example Units

Unit Source
{ratio} Example UCUM Units

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