WHAT IS RED BLOOD CELL (RBC) TEST?
Red blood cells constitute the majority of peripheral blood cells. They are formed by the red bone marrow, have a life span of about 120 days, and are removed from the blood by the liver, spleen, and bone marrow. Red blood cells function in haemoglobin transport, which results in the delivery of oxygen to the body tissues. Red blood cell development is characterized by passage through several characteristic stages, beginning with erythroblasts, which are immature, nucleated red blood cells.