Version 2.73

17849-1Reticulocytes/100 erythrocytes in Blood by Automated countActive

Part Descriptions

LP16487-8   Reticulocytes
Reticulocytes are immature red blood cells (RBC), comprising about 1% of the red cells in the human body. They develop and mature in the bone marrow and then circulate for about a day in the blood before developing into mature RBC. Like mature RBC, reticulocytes do not have a nucleus. They are called reticulocytes because of a reticular (mesh-like) network of ribosomal RNA that is visible under a microscope. Reticulocytes appear slightly bluer than other RBC when stained with Romanowsky stain. Reticulocytes are also slightly larger and thus can be identified as a high mean corpuscular volume during a full blood count done by machine. Copyright Text is available under the Creative Commons Attribution/Share-Alike License. See http://creativecommons.org/licenses/by-sa/3.0/ for details. Source: Wikipedia, Reticulocytes (Wikipedia)

LP16487-8   Reticulocytes
In humans, reticulocytes are erythroid cells that have just undergone extrusion of their nucleus. They still contain some organelles that gradually decrease in number as the cells mature. Ribosomes are last to disappear. Certain staining techniques cause components of the ribosomes to precipitate into characteristic "reticulum" (not the same as the endoplasmic retuculum), hence the name reticulocytes. Copyright Text is available under the Creative Commons Attribution/Share-Alike License. See http://creativecommons.org/licenses/by-sa/3.0/ for details. Source: National Library of Medicine, MeSH 2006, Reticulocytes (Wikipedia)

Fully-Specified Name

Reticulocytes/100 erythrocytes
Automated count

Additional Names

Short Name
Retics/100 RBC NFr Auto
Display Name
Reticulocytes/100 RBC Auto (Bld)
Consumer Name Alpha
Reticulocytes per 100 Red Blood Cells, Blood

Basic Attributes

First Released
Version 1.0l
Last Updated
Version 2.73
Change Reason
The system of RBC had been an oversight. Reticulocytes are red blood cells, but the system of interest is blood. Changed Order_Obs from 'Observation Only' to fit the current order use cases.
Order vs. Observation
Common US Lab Results Rank
Common Orders Rank

Reference Information

Type Source Reference
Mapping Guidance Regenstrief Help Reticulocytes are reported as percents (per 100) of RBC's even if based on a count of 1000 RBC's or more. So the right term for a manual count is [LOINC: 31112-6] regardless of the number of cells counted. However, today it is most likely that these are done by automated methods [LOINC: 17849-1], not manual methods. Mapper’s Guide for the Top 2000 plus LOINC Laboratory Observations

Member of these Panels

LOINC Long Common Name
50262-5 Reticulocytes panel - Blood

Language Variants Get Info

zh-CNChinese (China)
网织红细胞/100 个红细胞:计数型分数:时间点:全血:定量型:自动化计数方法
nl-NLDutch (Netherlands)
reticulocyten/100 erytrocyten:getalsfractie:moment:bloed:kwantitatief:geautomatiseerde telling
et-EEEstonian (Estonia)
Retikulotsüüdid/100 erütrotsüüdi kohta:NFr:Pt:B:Qn:Automaatloendus
fr-BEFrench (Belgium)
Réticulocytes/100 érythrocytes:Fraction numérique:Temps ponctuel:Sang:Quantitatif:Décompte automatisé
fr-CAFrench (Canada)
Réticulocytes/100 érythrocytes:Fraction numérique:Temps ponctuel:Sang:Quantitatif:Décompte automatisé
fr-FRFrench (France)
Réticulocytes/100 érythrocytes:Fraction de nombres:Ponctuel:Sang:Numérique:Comptage automate
de-DEGerman (Germany)
Retikulozyten/100 Erythrozyten:Anzahl pro Fraktion:Zeitpunkt:Blut:Quantitativ:Automatisierte Zählung
el-GRGreek (Greece)
Δικτυοερυθροκύτταρα/100 ερυθρά αιμοσφαίρια:Αριθμητικό κλάσμα:Χρονική στιγμή:Αίμα:Ποσοτική:Αυτόματη μέτρηση
it-ITItalian (Italy)
Reticolociti/100 eritrociiti:NFr:Pt:Sangue:Qn:Conta automatica
ko-KRKorean (Korea, Republic of)
그물적혈구/100 적혈구:숫자분획:검사시점:적혈구:정량:자동계수
pl-PLPolish (Poland)
Retikulocyty/100 erytrocytów:Frakcja ilościowa:Punkt w czasie:Krew:ilościowy:Automatyczne liczenie
pt-BRPortuguese (Brazil)
Reticulócitos/100 eritrócitos:NFr:Pt:Eritroc:Qn:Contagem automática
ru-RURussian (Russian Federation)
Ретикулоциты/100 эритроцитов:КолДоля:ТчкВрм:Кр:Колич:Автоматизированный подсчет
es-ARSpanish (Argentina)
reticulocitos/100 eritrocitos:fracción de un número:punto en el tiempo:eritrocitos:cuantitativo:recuento automático
es-MXSpanish (Mexico)
Reticulocitos / 100 eritrocitos:Fracción numérica:Punto temporal:Sangre:Cuantitativo:Recuento automatizado
es-ESSpanish (Spain)
Reticulocitos/100 eritrocitos:Fracción numérica:Punto temporal:Sangre:Qn:Contaje automático
tr-TRTurkish (Turkey)
Retikülositler/100 eritrosit:SayFr:Zmlı:Kan:Kant:Otomatize sayım

Example Units

Unit Source
% Example UCUM Units

LOINC FHIR® API Example - CodeSystem Request Get Info