Which atrioventricular heart block is also referred to as Mobitz II?
A- Third-degree atrioventricular heart block
B- Second-degree atrioventricular heart block
C- First-degree atrioventricular heart block
D- Complete heart block
Correct Response: A
Third-degree atrioventricular heart block is also referred to as Mobitz II; this type of heart block occurs when the AV node impulses are blocked as they try to reach the ventricles. First degree heart block occurs when the AV node impulse is delayed. Second degree heart block, as referred to as Mobitz I and Wenckebach, occurs when there are progressive conduction delays through the AV node that alters the PR and QRS intervals. Complete heart block blocks all atrial impulses to the ventricle.
A- Third-degree atrioventricular heart block
B- Second-degree atrioventricular heart block
C- First-degree atrioventricular heart block
D- Complete heart block
Correct Response: A
Third-degree atrioventricular heart block is also referred to as Mobitz II; this type of heart block occurs when the AV node impulses are blocked as they try to reach the ventricles. First degree heart block occurs when the AV node impulse is delayed. Second degree heart block, as referred to as Mobitz I and Wenckebach, occurs when there are progressive conduction delays through the AV node that alters the PR and QRS intervals. Complete heart block blocks all atrial impulses to the ventricle.
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