PR Interval

Question 1

The PR interval is from the ____________.

Answer 1

beginning if the P wave to the beginning of the QRS

Question 2

The PR interval is __________.

Answer 2

Atrial impulse from the AV node, bundle of HIS, and right and left bundle branches.

Question 3

A short PR interval may indicate that the ______

Answer 3

impulse may have originated in an area other than the SA node.

Question 4

A prolonged PR interval may indicate__________.

Answer 4

a conduction delay such as digoxin toxicity or heart block.