Normal RBCs

How to Subscribe
MLS & MLT Comprehensive CE Package
Includes 181 CE courses, most popular
$109Add to cart
Pick Your Courses
Up to 8 CE hours
$55Add to cart
Individual course$25Add to cart
The page below is a sample from the LabCE course Red Blood Cell (RBC) Morphology. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

Learn more about Red Blood Cell (RBC) Morphology (online CE course)
Normal RBCs

The normal RBC is often described as a biconcave disc. The center of the red cell is thinner than the edge. When a normal RBC is flattened on a microscope slide and stained, it has a diameter of 6-9 microns and a pale center area surrounded by a buff- or pink-stained rim. The pale center area, called the central pallor, normally occupies about one-third of the cell diameter.