Platelets


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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.
References in periodicals archive ?
'We average 50-70 patients per week with them needing minimum of two bags and maximum of six bags of platelet concentrate.
Patients with suggestive history and screening tests were evaluated by Platelet Aggregometry.
Bacterial contamination of platelets is rare (approximately one in 5,000 platelet units) but poses serious risk to platelet transfusion recipients.
A number of BCA members are already users of the Platelet PGD Test and the organisation sought an agreement with Verax to expand the products availability to its membership.
The RCPAQAP provided no information on what was added to the tubes to produce the platelet function abnormalities, making an assessment of what type of defects these might simulate difficult.
The amount of actin in intact platelets in newborn piglets averaged 26.2 [+ or -] 0.10% of the total protein in the platelet.
A platelet transfusion can be the difference between life and death.
These decoy platelets became about one-third the size of a regular platelet while retaining a majority of adhesion receptors on their surface.
The primary physiological function of platelets is forming homeostatic thrombi at the site of vascular injury (11).
"By removing the donor from the equation, adipose-derived stem cells could be used to provide a ready supply of safe, tolerable platelets to meet an ever-changing demand," said Matsubara.
Facilities can store platelets for seven days if they're stored in a container cleared or approved by FDA for 7-day storage and if individual platelet units are subsequently tested for bacterial detection using a bacterial detection device cleared by FDA and labeled for use as a "safety measure." The guidance document outlines strategy for 7-day storage.
MPV helps in measuring activated platelets. It can be defined as the size of the platelets on an average, calculated as a part of complete blood count.