Normals
What is the normal range of PR interval?
0.12-0.20
In the cardiac cycle, what represents the atria?
P wave
What rhythm is irregular, has a normal PR interval and ORS?
Sinus Arrhythmia
What two rhythms have no P wave?
Atrial fibrillation and Atrial flutter
In the cardiac cycle, what represents the baseline where no electrical activity is detected?
Isoelectric line
What is the normal range of the QRS complex?
<0.12
In the cardiac cycle, what represents total ventricular activity?
QT interval
What rhythm has an irregular rhythm, a premature QRS and an absent P wave?
Premature Ventricular Complex
What rhythm does NOT resume on time after the pause.
Sinus Arrest
What rhythm is not technically considered a heart block?
First Degree Heart Block
What is the normal range of the QT interval?
0.32-0.44
In the cardiac cycle, what presents the ventricles?
QRS complex
What rhythm has an irregular rhythm, premature irregularly shaped P waves with a regular underlying rhythm?
Premature Atrial Complex
What rhythm has a gradual increase in PR interval until an impulse is not conducted to the ventricles?
Second Degree Type 1
What is it called when the pacemaker does not discharge a stimulus to the myocardium - evidence of an absence pacemaker spike?
Failure to Fire
How would you determine ventricular regualrity?
Measuring R-R interval
In the cardiac cycle, what presents ventricular depolarization?
QRS Complex
What rhythm resumes on time after the pause?
Sinus Pause
What conditon will show rhythm on the monitor but the patient will have no pulse?
Pulseless Electrical Activity
What is it called when there is three or more PVCs?
A run of vtach
What rhythm has a HR of 60-100, has a normal PR interval and ORS complex, and has a regular rhythm?
Normal Sinus Rhythm
What slows conduction of impulses through the AV junction?
AV Node
What rhythm has a rapid, regular rhythm, HR >150 with unseen P waves?
Supraventricular Tachycardia
What rhythm can be either be regular or irregular, QRS are wide and bizzare, and may be monomorphic or polymorphic?
Ventricular Tachycardia
What is it called when the pacemaker delivers a stimulus but the stimulation of the myocardium does not occur - evidence by a pacemaker spike not followed by a P wave or QRS?
Failure to Capture