+
Related Flashcards
Related Topics
Cards In This Set
| Front | Back |
|
The duration of the PR interval _____ from beat to beat.
|
Is constant
|
|
PR interval is the distance from the?
|
Beginning of the P-wave to the beginning of the Q-wave
|
|
The PR interval denotes depolarization of the heart from the?
|
SA node through the atria, AV node, and HIS-Purkinje system
|
|
The normal duration of the PR interval is _____ second(s).
|
0.12 to 0.20
|
|
A shorter than normal PR interval is less than _____ second(s) in duration.
|
0.12
|
|
Which PR interval is considered normal?
|
That is 0.18 seconds in duration
|
|
What is delayed conduction through the AV node?
|
Constant PR intervals of greater than 0.20 seconds
|
|
With a pacemaker site that changes from beat to beat throughout the atria, the PR intervals?
|
Vary
|
|
With AV heart block, the PR intervals may be all of the following except?
|
Shorter in duration than 0.12 seconds
|
|
There will be an absence of PR intervals in?
|
The most severe form of AV heart block
|
|
If there is an accessory pathway between the atria and ventricles, the PR intervals may?
|
Be less than 0.12 seconds in duration
|
|
PR segments are commonly described as?
|
Flat
|
|
Common blocks occur where in the heart?
|
AV heart block
|
|
The PR intervals that change in duration are considered?
|
Abnormal and characteristic of specific dysrhythmias
|
