Platelets


Also found in: Dictionary, Thesaurus, Acronyms, Encyclopedia, Wikipedia.

platelets

[plat′lits]
Etymology: Fr, small plate
anucleate blood cells, 1-3 μm in diameter. Platelets are formed from bone marrow megakaryocytes. Approximately one third of circulating platelets become temporarily sequestered in the spleen. Platelets are disk-shaped, contain no hemoglobin, and are essential for coagulation and in maintenance of hemostasis. The platelet count reference interval is 150,000-450,000/uL. Also called thrombocyte. Compare erythrocyte, leukocyte. See also thrombocytopenia, thrombocytosis.
enlarge picture
Platelets

blood platelets

or

platelets

or

thrombocytes

disc-like components of mammalian BLOOD, consisting of non-nucleated cytoplasmic fragments of large bone-marrow cells 3 μm in diameter called megakaryocytes that have entered the blood circulatory system. Platelets play an important part in BLOOD CLOTTING.

Platelets

Fragments of a large precursor cell (a megakaryocyte) found in the bone marrow. These fragments adhere to areas of blood vessel damage and release chemical signals that direct the formation of a blood clot.
Mentioned in: Antituberculosis Drugs, Blood Donation and Registry, Bone Marrow Transplantation, Chemotherapy, Hantavirus Infections, Hemophilia, Platelet Aggregation Test, Platelet Function Disorders, Transient Ischemic Attack, Von Willebrand Disease, Wiskott-Aldrich Syndrome

platelets

syn thrombocytes cellular fragments in the blood, involved in blood coagulation. Platelets aggregate and adhere to form a temporary plug at the site of blood vessel damage.
Mentioned in ?
References in periodicals archive ?
The test can be used to extend the dating of apheresis platelets in plasma, the most common platelet type transfused in the US, from five to seven days.
Verax PGD Test Receives New FDA Clearance for Individual WBD Platelet Units
CD62p and CD63 percent positivity of pre- and post-apheresis platelets showed significant changes and statistically significant difference (p=0.
Pre and post apheresis platelet CD markers' evaluation using flow cytometry
The mean automated optical platelet count estimate was 40[+ or -]30 x [10.
Reproducibility of manual platelet estimation following automated low platelet counts
The correlation with the ischemic strokes is well established secondary to increased responsiveness of larger younger platelets with increased MPV18-20, and the known beneficial effects of using antiplatelet therapeutic strategies in preventing ischemic stroke21.
QUANTIFICATION OF MEAN PLATELET VOLUME IN DIABETIC PATIENTS PRESENTING WITH CEREBROVASCULAR DISEASES
Only dengue seropositive cases who have been platelet transfused were included in the study.
Rationale use of platelet transfusion in dengue fever-experience from a Tertiary Care Hospital
Table-II: Platelets parameters in ITP, Non-ITP patients and normal individuals.
Importance of immature platelet fraction as predictor of immune thrombocytopenic purpura
Rapid assessment of platelet production may aid clinicians in distinguishing between thrombocytopenia due to platelet destruction (such as immune thrombocytopenia [ITP]) and low platelet count due to aplastic disorders or other bone marrow failure syndromes.
Solving the thrombocytopenia puzzle with immature platelet testing
An increase in the number of young platelets and in MPV is expected with activation of platelets in case of inflammation.
Reduction in mean platelet volume in children with acute bronchiolitis
In the diagnostic approach to refractoriness to platelet transfusion a CCI at one hour of >7,500 platelets x [m.
Absolute platelet refractoriness associated with HLA antibodies: A case report
To achieve a larger surface area, platelets modify their shapes during activation.
Evaluation of the impact of cigarette smoking on platelet parameters
Unlike other sources of platelets, company officials said, human Induced Pluripotent Stem Cells can be propagated indefinitely, providing a potentially unlimited source of cells for therapeutic purposes.
New research on the scalable generation of universal platelets from iPSCS
Blood cells, such as platelets, are made in bone marrow.
Functional human platelets generated in lab

Medical browser ?
Full browser ?