14 Questions
What is the characteristic of the P wave in complete heart block?
Variable PR intervals
What is the origin of sinus rhythm in the heart?
SA node
What is the characteristic of the QRS complex in sinus bradycardia?
Normal shape and rate less than 60/min
What is the characteristic of the ventricular rate in atrial fibrillation?
Between 75-190/min
What is the characteristic of the PR interval in complete heart block?
Variable PR intervals
What is the relationship between the atrial rate and ventricular rate in atrial fibrillation?
The ventricular rate is limited to a maximum of 125/min
What is the characteristic of P wave in lead II for right atrial enlargement?
Tall and peaked
What is the cause of left atrial enlargement?
Mitral stenosis
What is the characteristic of right ventricular enlargement?
Tall R in V6 and deep S in V6
What is the indication of ischemia?
Inverted T wave
What is the characteristic of first-degree heart block?
PR interval is fixed and prolonged
What is the characteristic of second-degree heart block Mobitz type 1?
Progressive lengthening of the PR interval followed by an absence of the QRS
What is the characteristic of third-degree heart block?
Complete heart block with atrial contraction normal
What is the characteristic of left ventricular enlargement?
Deep S in V1 and V2, and tall R in V5 and V6
This quiz covers the identification of right and left atrial enlargement, as well as right ventricular enlargement on an ECG, including their causes and characteristic wave patterns.
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