Question

What is the classification of 2nd Degree Heart Block Type II?

1) First Degree
2) Second Degree
3) Third Degree
4) Fourth Degree

Answer 1

The 2nd Degree Heart Block Type II is classified as a Second Degree AV block, where some atrial impulses fail to conduct through the AV node, resulting in some P waves not being followed by QRS complexes on an ECG.

Step-by-step explanation:

The classification of 2nd Degree Heart Block Type II is a Second Degree AV block. This type of block is characterized by an intermittent failure of electrical impulses from the atria to pass through the AV node to the ventricles, which is distinct from a First Degree AV block that shows a delay but not a failure in conduction, and a Third-Degree Block where there is a complete dissociation between atrial and ventricular activity. In a Second Degree Heart Block Type II, noticeable on an ECG, some P waves are not followed by a QRS complex, indicating missed beats.