What is the normal PR interval for an atrial fibrillation rhythm?
Accurate Answer - Not applicable
What is a potential cause of PVCs? Accurate Answer - Hypokalemia
Which ECG finding is present in an idioventricular rhythm? Accurate
Answer - Wide QRS
What type of AV block is associated with progressively longer PR intervals
and an eventual Â"droppedÂ" QRS complex? Accurate Answer -
Second-degree type I
What ventricular rhythm is present when an ECG strip shows no determinable
rate, pattern, or organized rhythm, nor does it have P waves, a PR interval, or
QRS complexes? Accurate Answer - Ventricular fibrillation
What ECG rhythm has no discernible P waves, irregular fibrillatory waves, and
an irregular R to R interval? Accurate Answer - Atrial fibrillation
What part of the heart is the origin of an idioventricular rhythm?
Accurate Answer - Ventricles
Which of the following distinguishes first-degree AV block from normal sinus
rhythm? Accurate Answer - PR interval greater than 0.20 seconds
Which rhythm has Â"sawtoothÂ" patterned waves? Accurate Answer -
Atrial flutter
On the ECG strip, one small square represents what length of time?
Accurate Answer - 0.04 seconds
Which of the following is associated with sinus tachycardia? Accurate
Answer - Anxiety, fear, pain
Which of the following can be a source of ECG artifact? Accurate
Answer - Cell phone