Characteristics. 1  Hunter-gatherer bands, which are generally egalitarian. 2  Horticultural/pastoral societies in which there are generally two inherited social classes; chief and commoner. 3  Highly stratified structures, or chiefdoms, with several inherited social classes: king, noble, freemen, serf and slave.
RDW is elevated in accordance with variation in red cell size (anisocytosis), ie, when elevated RDW is reported on complete blood count, marked anisocytosis (increased variation in red cell size) is expected on peripheral blood smear review.
Causes of low RDW in a blood test? Low RDW causes vary. The level of RDW is low if the reading showed below 10.2 %. It could be associated with various medical disorders, but the most common one is macrocytic anemia. It is a type of blood disease wherein the number of red blood cells is not enough to supplement the needs of the body.