LOINC
Version 2.71

749-2Myelocytes/100 leukocytes in Blood by Manual countActive

Part Description

LP15077-8   Myelocytes
The identification of mature and immature granulocytes, including myelocytes and metamyelocytes, in blood and bone marrow is fundamental to the diagnosis of haematological disorders. A myelocyte is a young cell of the granulocytic series, occurring normally in bone marrow, but not in circulating blood (except when caused by certain diseases). Myelocytes are derived from promyelocytes and give rise to metamyelocytes. When stained with the usual dyes, the cytoplasm in myelocytes is distinctly basophilic and relatively more abundant than in myeloblasts or promyelocytes. Numerous cytoplasmic granules are present in the more mature forms of myelocytes. Neutrophilic and eosinophilic granules are peroxidase-positive, while basophilic granules are not. The nucleus of a myelocyte is fairly regular in contour (not indented), and seems to be 'buried' beneath the numerous cytoplasmic granules. If the nucleus were indented, it is likely be a metamyelocyte. 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, Wikipedia (Myelocyte and Metamyelocyte)

Fully-Specified Name

Component
Myelocytes/100 leukocytes
Property
NFr
Time
Pt
System
Bld
Scale
Qn
Method
Manual count

Additional Names

Short Name
Myelocytes/leuk NFr Bld Manual
Display Name
Myelocytes/100 WBC Manual cnt (Bld)
Consumer Name Alpha
Myelocytes per 100 white blood cells, Blood

Basic Attributes

Class
HEM/BC
Type
Laboratory
First Released
Version 1.0
Last Updated
Version 2.70
Order vs. Observation
Observation
Common US Lab Results Rank
371
Common SI Lab Results Rank
371

Reference Information

Type Source Reference
Mapping Guidance Regenstrief Help All reports of myelocytes will be produced by manual counts. Mapper’s Guide for the Top 2000 plus LOINC Laboratory Observations

Language Variants Get Info

zh-CNChinese (China)
中幼粒细胞/100 个白细胞:计数型分数:时间点:全血:定量型:手工计数方法
nl-NLDutch (Netherlands)
myelocyten/100 leukocyten:getalsfractie:moment:bloed:kwantitatief:manuele telling
fr-BEFrench (Belgium)
Myélocytes/100 leucocytes:Fraction numérique:Temps ponctuel:Sang:Quantitatif:Numération manuelle
fr-CAFrench (Canada)
Myélocytes/100 leucocytes:Fraction numérique:Temps ponctuel:Sang:Quantitatif:Numération manuelle
fr-FRFrench (France)
Myélocytes/100 leucocytes:Fraction de nombres:Ponctuel:Sang:Numérique:Comptage manuel
it-ITItalian (Italy)
Mielociti/100 leucociti:NFr:Pt:Sangue:Qn:Conta manuale
ko-KRKorean (Korea, Republic of)
골수세포/100 백혈구:숫자분획:검사시점:전혈:정량:수기계수
pt-BRPortuguese (Brazil)
Mielócitos/100 leucócitos:NFr:Pt:SgTotal:Qn:Contagem manual
ru-RURussian (Russian Federation)
Миелоциты/100 лейкоцитов:КолДоля:ТчкВрм:Кр:Колич:Ручной подсчет
es-ARSpanish (Argentina)
mielocitos/100 leucocitos:fracción de un número:punto en el tiempo:sangre:cuantitativo:recuento manual
es-ESSpanish (Spain)
Mielocitos/100 leucocitos:Fracción numérica:Punto temporal:Sangre:Qn:Contaje manual
tr-TRTurkish (Turkey)
Miyelositler/100 lökosit:SayFr:Zmlı:Kan:Kant:Manuel sayım

Example Units

Unit Source
% eCHN
% Example UCUM Units
% REGENSTRIEF

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=749-2