LOINC
Version 2.70

71676-1Neutrophils/Leukocytes [Pure number fraction] in Blood by Automated countActive

Term Description

Because of the confusion that occurs in countries that report results as both decimal fraction and percent, this property was created to represent decimal fractions that are reported without units.
Source: Regenstrief LOINC

Part Descriptions

LP14267-6   Neutrophils
Neutrophils are the most common form of white blood cells in healthy adults. Neutrophils are approximately 13 micrometers in diameter and have segmented nuclei with 3-5 lobes that are connected by thin strands of chromatin. (Practical Haematology; Barbara J. Bain, Imelda Bates, Mike A. Laffan,S. Mitchell Lewis; Eleventh edition; 2012) Neutrophils function to fight infection by both engulfing microorganisms and secreting lethal enzymes.
(https://www.ncbi.nlm.nih.gov/pubmedhealth/PMHT0022058/) They are produced in the bone marrow and their primary function is to fight infection. Neutrophil numbers increase in the blood in response to acute bacterial infection, inflammation, necrosis or chronic myelogenous leukemia. Neutrophil levels are decreased in the following conditions: aplastic anemia, autoimmune disorder, cancer, chemotherapy, myelodysplastic syndrome and during a negative reaction to drugs. [PMID: 24050624] [MedlinePlus Encyclopedia:19864] Source: Regenstrief LOINC

LP157588-7   Leukocytes
Leukocytes or white blood cells (WBCs) are immune cells that fight infection, neoplasms and other inflammatory conditions, and mediate allergic responses. There are five types of WBCs normally present in the circulation that are all derived from a similar stem cell in the bone marrow. The five type of WBCs are divided into two groups based on the presence or absence of granules in the cytoplasm. The granulocytes include the neutrophils, basophils and eosinophils. The non-granulocytes include the lymphocytes and the monocytes. The neutrophils fight infection by ingesting and digesting bacteria. Eosinophils and basophils respond to allergic reactions and are capable of ingesting antigen-antibody complexes. Monocytes phagocytose bacteria and release interferon to stimulate the immune system. Lymphocytes are divided into T-cells and B-cells. T-cell immunity is cellular and involves the activation of phagocytes and B-cell immunity uses antibodies to fight infection. Both elevated and low leukocyte counts can be markers of infection and malignancy, and low leukocyte counts are associated with a variety of primary and secondary immunodeficiencies, depending on the WBC type(s) that are out of range. (Mosby's manual of diagnostic and laboratory tests, Kathleen Deska Pagana; Timothy James Pagana, Elsevier St. Louis, Mo ©2010) Source: Regenstrief LOINC

Fully-Specified Name

Component
Neutrophils/leukocytes
Property
NFr.DF
Time
Pt
System
Bld
Scale
Qn
Method
Automated count

Additional Names

Short Name
Neutrophils NFr.DF Bld Auto
Display Name
Neutrophils/Leukocytes Auto (Bld) [Pure # fraction]
Consumer Name Alpha
Neutrophils/White Blood Cells, Blood

Basic Attributes

Class
HEM/BC
Type
Laboratory
First Released
Version 2.42
Last Updated
Version 2.42
Order vs. Observation
Observation

Language Variants Get Info

zh-CNChinese (China)
嗜中性粒细胞/白细胞:计数型分数.小数型:时间点:全血:定量型:自动化计数方法
nl-NLDutch (Netherlands)
neutrofielen/leukocyten:decimale getalsfractie:moment:bloed:kwantitatief:geautomatiseerde telling
fr-CAFrench (Canada)
Neutrophiles/Leucocytes:Fraction numérique.DF:Temps ponctuel:Sang:Quantitatif:Décompte automatisé
fr-FRFrench (France)
Polynucléaires neutrophiles/leucocytes:Fraction de nombres (sans unité):Ponctuel:Sang:Numérique:Comptage automate
it-ITItalian (Italy)
Neutrofili/Leucociti:NFr.DF:Pt:Sangue:Qn:Conta automatica
pt-BRPortuguese (Brazil)
Neutrófilos/leucócitos::Pt:SgTotal:Qn:Contagem automática
ru-RURussian (Russian Federation)
Нейтрофилы/Лейкоциты:ЧислДоля.ДецДоля:ТчкВрм:Кр:Колич:Автоматизированный подсчет
es-ESSpanish (Spain)
Neutrófilos/Leucocitos:NFr.DF:Punto temporal:Sangre:Qn:Contaje automático
tr-TRTurkish (Turkey)
Nötrofiller/Lökosit:NFr.DF:Zmlı:Kan:Kant:Otomatize sayım

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=71676-1