Hematocrit


Blood Smear Showing Reduced Red Blood Cell Count : Anemia is caused when there are too few RBCs circulating in the bloodstream. That can happen when they are lost through bleeding, destroyed too quickly or produced too slowly. When a person is anemic, the blood is less effective at transporting inhaled oxygen to cells and retrieving carbon dioxide from the tissues and carrying it back to the lungs to be exhaled.

The hematocrit (Ht or HCT, British English spelling haematocrit), also known as packed cell volume (PCV) or erythrocyte volume fraction (EVF), is the volume percentage (%) of red blood cells in blood. It is normally 45% for men and 40% for women. It is considered an integral part of a person's complete blood count results, along with hemoglobin concentration, white blood cell count, and platelet count. Anemia refers to an abnormally low hematocrit, as opposed to polycythemia, which refers to an abnormally high hematocrit. Both are potentially life-threatening disorders.


Related Images

Glomerulus (kidney)
Glomerulus (kidney)
Glomerulus
Glomerulus
Enlarged Heart
Enlarged Heart
Erythropoietin
Erythropoietin
Hemodialysis
Hemodialysis
Peritoneal Dialysis
Peritoneal Dialysis
Glomerulus
Glomerulus
Insulin
Insulin

The material on this site is for informational purposes only and is not intended as medical advice. It should not be used to diagnose or treat any medical condition. Consult a licensed medical professional for the diagnosis and treatment of all medical conditions and before starting a new diet or exercise program. If you have a medical emergency, call 911 immediately.