A hemoglobin electrophoresis test is a blood test used to measure and identify the different types of hemoglobin in your bloodstream. Hemoglobin is the protein inside red blood cells responsible for ...

An Hgb blood test measures a person’s hemoglobin levels. This protein helps red blood cells carry oxygen and keep cells and organs functioning. Low hemoglobin is known as anemia. Hemoglobin is also ...