Question

Atrial fibrillation is best described as when

		The P wave precedes, follows, or is buried in the QRS complex
		Disorganized and irregular atrial waves are accompanied by an irregular ventricular rate
		An atrial rate of 240 to 350 beats/min in a sawtooth pattern of atrial depolarization is seen
		P waves occurs earlier than normal, preceded by a P wave with a normal QRS configuration

Answer 1

Atrial fibrillation is best described as when

Ans: Disorganized and irregular atrial waves are accompanied by an irregular ventricular rate.

Explaination: Atrial fibrillation is a complete irregular atrial rhythm along with an irregular ventricular rhythm of variable rate. Small, squiggly waves of various shape and size is the characteristic feature of atrial impulse.

An atrial rate of 240 to 350 beats/min in a sawtooth pattern of atrial depolarization is seen - Atrial flutter

P waves occurs earlier than normal, preceded by a P wave with a normal QRS configuration-Premature atrial complex

The P wave precedes, follows, or is buried in the QRS complex- Junctional tachycardia