ECG Rhythm Strip Interpretation: Basic Lesson 6

PCV's require treatment when they:

are accompanied by hypotension or angina

which electrolyte imbalance can cause torsades de pointes?

hypomagnesemia

as in this rhythm strip, an atrial rate that can't be determined and a ventricular rhythm that's regular to 20-40 BPM may indicate which rhythm?

idioventricular rhythm (an atrial rate that can't be determined and ventricular rhythm that's regular at 20-40 BPM)

PVC's can result from an increase in:

myocardial irritability

why is ventricular fibrillation clinically significant?

there is no cardiac output

given the following information about this rhythm strip, what is the correct interpretation of the rhythm shown here? Rhythm: chaotic Rate: greater than 300 BPM P Wave: indiscernible PR: not measurable QRS: abnormal T Wave: indiscernible QT: not measurable Other: complex size increases and decreases

torsades de pointes (the absence of discernible electrical activity in the ventricles)

this rhythm strip shows sinus tachycardia with PCV's leading to which rhythm?

ventricular fibrillation

which rhythm strip finding is a sign of ventricular tachycardia?

ventricular rate 100-250 BPM

in this rhythm strip, what rhythm is shown leading into ventricular fibrillation?

ventricular tachycardia

ventricular arrhythmias are generated in myocardial cells below the bundle if His. What are the characteristics of these arrhythmias on an ECG rhythm strip?

wide QRS complex, absent P wave, T wave deflecting in the opposite direction of the QRS complex