Red Blood Cell Count

A red blood cell (RBC) count measures how many red blood cells are in your blood. These cells carry hemoglobin — the protein responsible for transporting oxygen from your lungs to the rest of your body. Your RBC count helps determine how much oxygen your tissues receive. If your count is too low or the red blood cells aren’t functioning well, your body may not get the oxygen it needs. This test is usually part of a complete blood count (CBC) and is used to help diagnose conditions like anemia or monitor overall health.

Red blood cell counts can vary by sex and age — women typically have lower counts than men, and levels may gradually decrease as we get older. Counts the number of circulating red blood cells. RBCs are your oxygen delivery trucks. A low count may leave you feeling tired, short of breath, or cold.

x10E6/uL” represents millions of cells per microliter. It’s a common unit used to express the concentration of cells, particularly red blood cells (RBCs), in a blood sample.