thinks you may have a blood clot from the heart.Carotid duplex (ultrasound) can show if the carotid arteries in your neck have narrowed.You may have an EKG and heart rhythm monitoring tests to check for an irregular heartbeat.Your doctor may do other tests to check high blood pressure, heart disease, diabetes, high cholesterol, and other causes of, and risk factors for TIAs or stroke.TreatmentThe