Initial assessment usually includes a careful interview and history (clinical evaluation). A weight history, menstrual history, and description of daily food intake are important during initial evaluation. Risk factors and family history are also vital in suspected cases. Laboratory results can reveal anemia (low red blood cell count in the blood), lowered white blood cells, pulse, blood pressure, and body temperature. The decreased temperature in extremities may cause a slight red-purple discoloration in limbs (acrocynanosis). There are two psychological questionnaires that can be administered to aid in diagnosis, called the Eating Attitudes Test (EAT) and Eating Disorders Inventory (EDI). The disadvantage of these tests is that they may produce false-positive results, which means that a test result may indicate that the test taker has anorexia, when, actually, s/he does not.
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