Method of determining atrial fibrillation including determining if a patients pulse beats form an irregular pattern and only if so, indicating the presence of an irregular pulse to the patient and obtaining an electrocardiogram for determining atrial fibrillation. Initially, a pulse is detected at regular time intervals of a first appendage of the patient when motionless using a pulse detector secured to the first appendage and pulse rhythms from a succession of time intervals are detected each corresponding to a respective interval of time between successive pulse beats of a sequence of the pulse beats. Then, an electrically conductive unit is attached to a second appendage of the patient, or a wearable electrocardiogram is attached to the patient, and electrocardiograms signals are detected simultaneously with pulse rhythms while the first appendage is motionless and analyzed to determine whether, in combination, they are indicative of atrial fibrillation. If so, an indication of atrial fibrillation is provided at least to the patient.