Review Of Atrial Fibrill References. A normal, healthy heartbeat involves a regular contraction of the heart muscle. Blood tests are done to look for health conditions or substances that may affect the heart or heartbeat.
This quick and painless test measures the electrical activity of the heart. Af is the most common sustained cardiac arrhythmia in clinical practice and it is an enormous burden worldwide because of the high rates of morbidity, disability and mortality. Web atrial fibrillation (af) is a disturbance of the electrical system of the heart.
