Your doctor will diagnose panic disorder based on a comprehensive evaluation to rule out other possible causes of your symptoms. However, there are no lab tests that can be used to specifically diagnose panic disorder.
Your evaluation will start with a detailed medical history, physical exam and psychological exam. You need to have a past history of panic attacks to be considered eligible for panic disorder. Your doctor may conduct a physical examination to check for signs whether your anxiety is linked to another underlying disease. He/she will also conduct a psychological evaluation and ask you detailed questions about your symptoms and history.
Your diagnosis will be based on the intensity, duration and frequency of your symptoms, and will be made after a thorough evaluation by a psychiatrist or psychologist.