Category: P

A failure of circulating platelet levels to rise after platelet transfusion. Alloimmunization against platelet antigens, disseminated intravascular coagulation, fever, hypersplenism, and sepsis are among the potential causes. A typical platelet transfusion should normally raise platelet counts by more than 20,000 platelets/microliter.  

The separation of platelets from other components of whole blood (e.g. for use in transfusion or to treat hematologic disease).  

A test of the ability of platelets to occlude a small aperture when whole blood is forced through it under conditions of high shear stress. The time required for blood to occlude the aperture of the test device is known as the closure time. The test is used to evaluate diseases and conditions in which…

Platelets prepared from a single unit of whole blood or plasma and suspended in a specific volume of the original plasma. This blood fraction must be used before the expiration date shown on its label. Platelets are stored at room temperature (22°C) either in plasma or in a concentrated form as platelet-rich plasma.  

Any drug that blocks the effects of platelet-activating factor on inflammatory or allergic diseases and conditions.  

A device that moves fluids in a specific direction.  

In some cells, the flattened platelike bodies seen at the end of the spindle during mitosis.  

The part of the palatine bone forming the dorsal half of the roof of the mouth.  

A massive polypeptide formed by the hydrolysis of proteins and the subsequent recombination of amino acid esters. Plasteins can be derived from nonconventional sources of protein (e.g., cassava leaves or other plants) and used to make protein-rich foods.  

Cell division with unequal separation of cytoplasm.