14 Questions
What does a tall P wave in lead II indicate?
Right atrial enlargement
What is the characteristic P wave pattern in left atrial enlargement?
Broad and bifid
What is a common cause of right ventricular enlargement?
Pulmonary hypertension
What does a deep S wave in V1 and V2 indicate?
Left ventricular enlargement
What is the characteristic feature of second-degree heart block, Mobitz type 1?
Progressive lengthening of the PR interval followed by an absence of the QRS
What is the definition of third-degree heart block?
Complete heart block with atrial contraction and ventricular beats
What does ST segment elevation indicate?
Acute ischemia
What is the normal PR interval?
Not more than 1 big square
What is the characteristic of P wave in complete heart block?
P wave ~90/min
What is the site of origin of sinus rhythm in the heart?
SA node
What is the characteristic of QRS complex in sinus rhythm?
Normal shape
What is the rate of ventricular muscle in 3:1 block?
100/min
What is the characteristic of PR interval in complete heart block?
Variable PR interval
What is the characteristic of QRS complex in atrial flutter?
Broad and regular
Identify and analyze ECG readings for right and left atrial enlargement, and right ventricular enlargement, including their causes and characteristic patterns.
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