Red Blood Cell Morphology Examination (Peripheral Blood Smear Analysis)

What Is a Peripheral Blood Smear?

A peripheral blood smear involves spreading a thin layer of your blood on a microscope slide. A healthcare professional then examines the red blood cells (RBCs) and other blood components for any irregularities in shape, size, or count. This is often done as part of a routine blood test or to investigate symptoms like fatigue, pale skin, or unexplained bruising.

Why Might You Need This Test?

Your doctor may order this test if you have symptoms like fatigue, pale skin, easy bruising, or unexplained bleeding. It can also be used to diagnose or monitor conditions such as anemia, infections, or blood disorders like thalassemia or sickle cell disease.

What to Expect Before the Test

You will typically have a small needle inserted into your arm to draw a small amount of blood. The blood is then spread thinly on a slide and examined under a microscope. No special preparation is needed, but inform your doctor about any medications or conditions that might affect the results.

What Happens During the Test?

After your blood is drawn, it is processed and sent to a lab where a trained technician examines the smear under a microscope. They look for various cell shapes, including ovalocytes (oval-shaped red blood cells), which can indicate certain health concerns.