What is RBC mean on a blood test?

RBC stands for red blood cells, which are essential components of blood responsible for transporting oxygen from the lungs to the body's tissues and returning carbon dioxide to the lungs for exhalation. A blood test that includes an RBC count measures the number of red blood cells present in a specific volume of blood, which can help assess overall health and diagnose various conditions, such as anemia or polycythemia. Abnormal RBC levels may indicate underlying health issues that require further investigation.