RBC stands for Red Blood Cell. Red blood cells are the most common type of blood cell in the human body and are responsible for carrying oxygen from the lungs to the body's tissues and transporting carbon dioxide from the tissues back to the lungs to be exhaled.
Red blood cells contain a protein called haemoglobin, which binds to oxygen and carries it throughout the body. Abnormalities in red blood cell number or function can lead to a range of medical conditions, including anaemia, sickle cell disease, and polycythemia.
The number of red blood cells in the blood can be measured through a simple blood test called a complete blood count (CBC). A CBC can provide information about the number of red blood cells, the amount of haemoglobin in the blood, and other important markers of blood health.