9317-9

Platelet adequacy [Presence] in Blood by Light microscopy

Active

Term Description

Platelet Estimate

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

Reference Information

Type	Source	Reference
Mapping Guidance	Regenstrief Help	Often called platelet adequacy and recorded qualitatively as increased, adequate, low, very low, etc. Mapper’s Guide for the Top 2000 plus LOINC Laboratory Observations
Webcontent	Lab Tests Online^®Copyright Copyright © 2021 Lab Tests Online. All rights reserved.	Platelet Count

Fully-Specified Name

Component: Platelets
Property: PrThr
Time: Pt
System: Bld
Scale: Ord
Method: Microscopy.light

Additional Names

Long Common Name: Platelet adequacy [Presence] in Blood by Light microscopy
Short Name: Platelet Bld Ql Smear
Display Name: Platelets LM Ql (Bld)
Consumer Name Alpha Get Info: Platelet count, Blood

Basic Attributes

Class: HEM/BC
Type: Laboratory
First Released: Version 1.0i
Last Updated: Version 2.73 (MIN)
Change Reason: Microscopy is a more accurate way to describe platelet estimate; The PrThr property is used for LOINC terms whose results are reported using an ordered categorical scale, regardless of whether or not an internal threshold was used to make that determination. This change was approved by the Laboratory LOINC Committee in June 2016.
Order vs. Observation: Observation
Common Test Rank Get Info: 189

Member of these Panels

LOINC	Long Common Name
57782-5	CBC W Ordered Manual Differential panel - Blood
57022-6	CBC W Reflex Manual Differential panel - Blood
24361-8	Deprecated Hemogram, platelets & Differential panel in Blood
34527-2	Deprecated Hemogram, Platelets, Differential & Reticulocyte panel in Blood
24359-2	Hemogram without Platelets and with Manual Differential panel - Blood
48808-0	Leukogram panel - Blood
24318-8	Manual Differential panel - Blood
34994-4	Smear morphology panel - Blood

Language Variants Get Info

Tag	Language	Translation
de-DE	German (Germany)	Thrombozyten:Nachweis oder Schwellenwert:Zeitpunkt:Blut:Ordinal:Mikroskopie.Licht
el-GR	Greek (Greece)	Αιμοπετάλια:PrThr:Pt:Αίμα:Ord:Μικροσκόπηση.φωτός Synonyms: PrThr Αιμοπετάλια
es-AR	Spanish (Argentina)	plaquetas:concentración arbitraria:punto en el tiempo:sangre:ordinal:recuento manual
es-MX	Spanish (Mexico)	Plaquetas:Presencia o umbral:Punto temporal:Sangre:Ordinal:Microscopía óptica
es-ES	Spanish (Spain)	Plaquetas:PrThr:Punto temporal:Sangre:Ord:Microscopía de luz
et-EE	Estonian (Estonia)	Trombotsüüdid:PrThr:Pt:B:Ord:Valgusmikroskoopia Synonyms: Järgarvuline Juhuslik Veri
fr-FR	French (France)	Plaquettes:Présence/Seuil:Ponctuel:Sang:Qualitatif:Microscopie optique
fr-BE	French (Belgium)	Plaquettes:PrThr:Temps ponctuel:Sang:Ordinal:Microscopie.fond clair
fr-CA	French (Canada)	Plaquettes:Présence-Seuil:Temps ponctuel:Sang:Ordinal:Microscopie.fond clair
it-IT	Italian (Italy)	Piastrine:PrThr:Pt:Sangue:Ord:Microscopia.ottica Synonyms: Ematologia (coagulazione) conta differenziale Microscopia ottica Presenza o Soglia Punto nel tempo (episodio) Sangue
ko-KR	Korean (Korea, Republic Of)	혈소판:임의농도:검사시점:전혈:순위척도:수기계수
nl-NL	Dutch (Netherlands)	trombocyten:aanwezigheid:moment:bloed:ordinaal:microscopie.licht Synonyms: lichtmicroscopie
pl-PL	Polish (Poland)	Płytki krwi:granica wykrywalności:punkt w czasie:krew:półilościowy:mikroskopia świetlna
pt-BR	Portuguese (Brazil)	Plaquetas:ACnc:Pt:SgTotal:Ord:Contagem manual Synonyms: ; Platelet; Plt; Thrombocytes; Platelt; Thrb; Thrombocyte; Arbitrary concentration; Point in time; Random; Blood; WB; Whole blood; Ql; Ordinal; QL; Qualitative; Qual; Screen; Manl; HEMATOLOGY/CELL COUNTS; HEMATOLOGY/CELL COUNTS; Platelet estimate
ru-RU	Russian (Russian Federation)	Пластинки кровяные:PrThr:ТчкВрм:Кр:Пор:Микроскопия.световой Synonyms: Кровь Порядковый Точка во времени;Момент Тромбоциты
tr-TR	Turkish (Turkey)	Trombositler:MevcEşik:Zmlı:Kan:Srl:Mikroskopi.ışık Synonyms: Mevcut
uk-UA	Ukrainian (Ukraine)	Тромбоцити:Наявність або Поріг:МоментЧасу:Кров:Порядково:Мікроскопія. світлова Synonyms: Blood; HEMATOLOGY/CELL COUNTS; LM; Micro; Micros; Microscopic; Ordinal; Platelet; Platelet adequacy; Platelet estimate; Platelt; Plt; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Thrb; Thrombocyte; Thrombocytes; WB; Whole blood
zh-CN	Chinese (China)	血小板:存在情况或阈值:时间点:全血:序数型:显微镜检查.光学 Synonyms: 依次型;分类顺序型;定性的;序数型（或称等级型）;性质上的;有序型;有序性分类应答;有序性分类结果;秩次型;等级型;筛查;顺序型光学显微镜方法;光学显微镜方法.光学;光学显微镜检;光学显微镜检.光学;光学显微镜检查;光镜检查;光镜检查.光学;光镜法;显微镜检查.普通光学;普通光学显微镜检查;镜检;镜检.光学凝血细胞;血栓细胞;血小板类;血液制品 - 血小板存在情况;存在;存在与否;是否存在;阈值;界值;界限;阀值;临界值;存在情况（存在、存在与否、是否存在）或阈值（界值、界限、阀值、临界值）时刻;随机;随意;瞬间显微学;显微术;显微镜学;显微镜检术;显微镜检查;显微镜检查方法;显微镜检查法;显微镜检查类方法;显微镜检查类检验方法;显微镜法;镜检;镜检术;镜检法等级型血小板浓度血;血液血小板 Ord 血小板等级型血小板估算血小板估算值血小板估计血小板估计值血液学/细胞计数;血液学与细胞计数

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Copyright © 2025 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.