Platelet Counting

The assessment of the platelet count is essential within both routine hematology and research laboratories. Accurate and precise enumeration of platelets is not only critical to assist in diagnosis and treatment of various clinical disorders, but it is also a vital research tool particularly for standardizing counts within whole blood, platelet-rich plasma (PRP), or purified platelet preparations. The normal platelet count is widely quoted as between 150–400 � 10⁹ /L of whole blood.