LOINC
Version 2.71

74464-9Platelets [#/volume] in Capillary blood by Manual countActive

Term Description

Studies suggest that capillary cell counts can have values different from venous blood. One study reported significantly higher venous platelet counts in neonates compared to the corresponding capillary values. The study also found the capillary blood samples had higher Hb, Hct, red blood cell (RBC), white blood cell (WBC), and lymphocyte counts. [PMID:12542436]
Source: Regenstrief LOINC

Part Description

LP14597-6   Platelets
Platelets are miniature fragments of cytoplasm that break off of megakaryocytes. Their primary function is to inhibit excessive hemorrhage after blood vessel injury. Platelets cling to the damaged part of the blood vessel where they become activated, recruit other platelets to the site, and begin the cascade of physical and chemical events that lead to clot formation. Activated platelets secrete cytokines, chemokines, and growth factors, all which play a role in thrombus development.When activated, platelets stimulate monocytes and neutrophils to leave the blood vessel and enter the tissue.[PMID:27226790] The normal range of platelets is 150,000 to 450,000 platelets/uL. Lower than normal platelet counts can lead to increased bleeding and is caused by a number of factors including: chemotherapy, autoimmune disorders and some medications. Increased platelets can cause hypercoagulation due to cancer, anemia, spleen removal and some medications.[MedlinePlus Encyclopedia:003647] Source: Regenstrief LOINC

Fully-Specified Name

Component
Platelets
Property
NCnc
Time
Pt
System
BldC
Scale
Qn
Method
Manual count

Additional Names

Short Name
Platelet # BldC Manual
Display Name
Platelets Manual cnt (BldC) [#/Vol]
Consumer Name Alpha
Platelet count, Blood

Basic Attributes

Class
HEM/BC
Type
Laboratory
First Released
Version 2.46
Last Updated
Version 2.46
Order vs. Observation
Both

Reference Information

Type Source Reference
Webcontent Lab Tests Online®Copyright Copyright © 2021 Lab Tests Online. All rights reserved. Platelet Count

Language Variants Get Info

zh-CNChinese (China)
血小板:计数型浓度:时间点:毛细血管全血:定量型:手工计数方法
nl-NLDutch (Netherlands)
trombocyten:aantal/volume:moment:capillair bloed:kwantitatief:manuele telling
fr-BEFrench (Belgium)
Plaquettes:Concentration numérique:Temps ponctuel:Sang capillaire:Quantitatif:Numération manuelle
fr-CAFrench (Canada)
Plaquettes:Concentration numérique:Temps ponctuel:Sang capillaire:Quantitatif:Numération manuelle
fr-FRFrench (France)
Plaquettes:Nombre/Volume:Ponctuel:Sang capillaire:Numérique:Comptage manuel
it-ITItalian (Italy)
Piastrine:NCnc:Pt:Sangue capill:Qn:Conta manuale
pt-BRPortuguese (Brazil)
Plaquetas::Pt:SgCap:Qn:Contagem manual
ru-RURussian (Russian Federation)
Пластинки кровяные:КолОб:ТчкВрм:КрК:Колич:Ручной подсчет
es-ESSpanish (Spain)
Plaquetas:Concentración de número:Punto temporal:Sangre capilar:Qn:Contaje manual
tr-TRTurkish (Turkey)
Trombositler:SayKons:Zmlı:KanKpl:Kant:Manuel sayım

Example Units

Unit Source
10*9/L Example UCUM Units

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=74464-9