What is RBC and Hgb in a blood test?

RBC stands for red blood cells, which are responsible for carrying oxygen to the body's tissues and removing carbon dioxide. The red blood cell count (RBC count) is a measurement of the number of red blood cells present in a given volume of blood. Hgb, on the other hand, stands for hemoglobin, a protein molecule found in red blood cells that binds with oxygen and carries it throughout the body. Hemoglobin levels (Hb levels) indicate the amount of hemoglobin in the blood and play a crucial role in assessing the blood's oxygen-carrying capacity. These parameters are commonly measured as part of a complete blood count (CBC) test and provide valuable information about blood health and related conditions.