The major key to the clinical significance of atrial flutter is the

Question

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The major factor underlying atrial flutter symptoms is the ventricular response rate.If the atrial rate is 300 and the atrioventricular (AV)conduction ratio is 4:1, the ventricular response rate is 75 beats/min and should be well tolerated.If, on the other hand, the atrial rate is 300 beats/min but the AV conduction ratio is 2:1, the corresponding ventricular rate of 150 beats/min may cause angina, acute heart failure, or other signs of cardiac decompensation.

The Major Key to the Clinical Significance of Atrial Flutter