LOINC
Version 2.70

97995-5Platelets [#/volume] in Blood by Automated count.opticalActive

Part Descriptions

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

LP427008-0   Automated count.optical
Automated hematology analyzers employ either electrical impedance methods, or more recently, optical methods. Optical methods may be important for platelet counting, particularly in cases of thrombocytopenia or microcytosis, where impedance may overestimate the platelet count [PMID: 26629371] . Source: Regenstrief LOINC

Fully-Specified Name

Component
Platelets
Property
NCnc
Time
Pt
System
Bld
Scale
Qn
Method
Automated count.optical

Additional Names

Short Name
Platelet # Bld Auto Optical
Display Name
Platelets Auto.optical (Bld) [#/Vol]
Consumer Name Alpha
Platelet count, Blood

Basic Attributes

Class
HEM/BC
Type
Laboratory
First Released
Version 2.70
Last Updated
Version 2.70
Order vs. Observation
Observation

Member of these Groups

LG32892-8 Platelets|NCnc|Pt|Bld

Example Units

Unit Source
10*3/uL Example UCUM Units

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=97995-5