platelet distribution width


Also found in: Acronyms.

platelet distribution width

,

PDW

A measure of the variation in the size of platelets found in the circulating blood. Platelets recently released from bone marrow tend to be larger and to contain more RNA than older, smaller platelets, which discard their endoplasmic reticulum as they mature.
References in periodicals archive ?
MPV, PCT, and Platelet Distribution Width Reference Ranges and Correlations
Platelet distribution width was positively correlated with MPV (r = 0.