Also called erythrocytes, red blood cells contain the protein that carries oxygen from the lungs to the tissues.
Children, pregnant people, and older adults are at the most risk of iron deficiency anemia.
This is called normocytic anemia.
If your doctor suspects you have an infection, the test can also help confirm that diagnosis.
American Academy of Family Physicians.
If anemia is the cause and you have cancer, you may need a red blood cell transfusion.