Elizabeth Blackwell (3 February 1821 â 31 May 1910) was the first female doctor in the United States and the first on the UK Medical Register. She was the first openly identified woman to graduate from medical school, a pioneer in educating women in medicine in the United States, and was prominent in the emerging women's rights movement.
According to Medilexicon's medical dictionary, atrial fibrillation is fibrillation in which the normal rhythmic contractions of the cardiac atria are replaced by rapid irregular twitchings of the muscular wall; the ventricles respond irregularly to the dysrhythmic bombardment from the atria..
Introduction. Atrial fibrillation is a heart condition that causes an irregular and often abnormally fast heart rate. A normal heart rate should be regular and between 60 and 100 beats a minute when you're resting.You can measure your heart rate by feeling the pulse in your neck or wrist.ntroduction. Atrial fibrillation is a heart condition that causes an irregular and often abnormally fast heart rate. A normal heart rate should be regular and between 60 and 100 beats a minute when you're resting.