What is the test for thalassemia & who does it?

Hgb electrophoresis. A sample of blood is placed in a specialized gel while an electrical charge is passed through the system. The test, known as a hemoglobin electropharesis is performed in a variety of labs around the country. Different types of hemoglobin with slightly different molecular makeup will create different patterns on the gel. These are compared to normal's to define the HGB types present.