Red blood cell (erythrocyte) count
Red blood cell count measures the number of erythrocytes in the blood. These cells contain hemoglobin and are responsible for carrying oxygen throughout the body. Abnormal levels can indicate anemia, polycythemia, dehydration, or various blood disorders.
Understand your biology
Track your biomarkers with Lucis — personalised wellness insights and longitudinal tracking to build healthier habits.
View plansRelated biomarkers
Hemoglobin
Hemoglobin is a protein in red blood cells that carries oxygen throughout the body. It is crucial for maintaining oxygen supply to tissues and organs. Abnormal levels can indicate conditions like anemia (low hemoglobin) or polycythemia (high hemoglobin)
Haematocrit level
Hematocrit (Hct) is the percentage of red blood cells (erythrocytes) in the total volume of blood. Red blood cells are responsible for carrying oxygen throughout the body. Hematocrit reflects how much of your blood is made up of these oxygen-carrying cells, providing insight into overall blood health and oxygen delivery capacity.
Mean corpuscular hemoglobin concentration (MCHC)
Mean Corpuscular Hemoglobin Concentration (MCHC) is a measure of the average concentration of hemoglobin (the oxygen-carrying protein) within a given volume of red blood cells (RBCs). It reflects how much hemoglobin is packed inside RBCs, providing insight into their oxygen-carrying capacity and overall red cell health.
Mean corpuscular volume (MCV)
Mean corpuscular volume (MCV) measures the average size of red blood cells. It helps classify different types of anemia and can indicate vitamin B12 or folate deficiency (high MCV) or iron deficiency (low MCV). Normal MCV values suggest healthy red blood cell production.
Mean corpuscular hemoglobin (MCH)
Mean corpuscular hemoglobin (MCH) measures the average amount of hemoglobin in each red blood cell. It helps classify types of anemia and evaluate oxygen-carrying capacity. Low MCH may indicate iron deficiency, while high levels can suggest vitamin B12 or folate deficiency.
Red blood cell distribution (RBC)
Red blood cell distribution width (RDW) measures the variation in size of red blood cells. Higher RDW indicates greater variation (anisocytosis) and can suggest nutritional deficiencies, chronic diseases, or bone marrow disorders. It helps differentiate types of anemia and assess overall blood health.