Atrial Fibrillation is the disorder of the ticker that causes an irregular heart rhythm known as arrhythmia. The condition can often make the ticker beat faster which can reduce blood supply to the rest of the body. Early diagnosis is the key to reducing the risk of serious complications like heart failure or stroke. One or more tests may be performed by a doctor to diagnose A-fib, he or she will be looking for signs of A-fib as well as any underlying conditions that might be causing the abnormal heart rhythm and possible complications. Here’s a lowdown on some of the tests and procedures doctors use to confirm a diagnosis of A-fib: Physical Examination- Irregular heart rhythm is the most obvious physical sign of Atrial Fibrillation. The doctor takes the person’s pulse to check how fast the ticker is beating where the speed of their pulse indicates heart rate. A healthcare provider will look for other physical indications of a problem with ticker function. A doctor will also check ...