a. There is more atrial activity (P waves) than ventricular activity (QRS. compl

Question

a. There is more atrial activity (P waves) than ventricular activity (QRS. complexes.) b. The observed rhythm is sinus c. The depolarization axis is in from plane is in left axis deviation quadrum. d. There is evidence of delayed conduction through the left bundle branch. d. There is evidence of delayed conduction through the left bundle branch. e. Two of the above are correct. a. An underlying sinus tachycardia rhythm (ventricular rate-115) is observed with premature ventricular contractions (PVCs). b. Every 4^th cardiac cycle originates from an ventricular focus. c. There is more ventricular activity (QRS complexes) than atrial activity (P waves). d. All of the above are correct.

Explanation / Answer

1) all of the above

ratio is >1:1.

more atrial activity (P wave) than QRS complex.

delayed conduction through AV node.

PR interval is getting progressively longer.

2) two of the above are correct.

depolarization axis is in front plane is in left axis deviation quadrant

evidence of delayed conduction through the left bundle branch.

3) all of the above are correct

tachycardia rhythm with PVCs.

4th cardiac cycle from ectopic ventricular focus.

more QRS complex than P wave.

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