Peripheral blood Smear

A peripheral blood smear (PBS) test is a technique healthcare providers use to examine your red and white blood cells and your platelets under a microscope.

A peripheral blood smear test shows how your blood cells and platelets look under a microscope. Looking through a microscope for

• Changes in your blood cell and platelet size and shape may be a sign of a blood disorder or blood cancer.
• Changes in the number or count of your blood cells and platelets. Changes in blood cell and platelet countmay be a sign something is happening in your bone marrow, which produces blood cells and platelets.
• Abnormal changes in any of your different white blood cell types.
• Signs you may have parasites in your blood.