👉 A hematocrit is a measure of red blood cell count. In a hematology test, the number of red blood cells (RBCs) in a patient's blood is measured using an instrument called a hematocrit meter. The higher the hematocrit, the more red blood cells are present in the patient's blood. This measurement helps doctors understand how healthy a person's blood is and whether they have anemia or other conditions that affect their red blood cell count.
