ECG Basics Exam |Questions &Rationales
Three or more consecutive premature ventricular complexes (PVC) at a rate greater than 100
is called: - ✔Ventricular tachycardia (VT)
Which of the following statements is inaccurate about idioventricular rhythms? - ✔. The
PR interval in this rhythm is within normal range
What is the first-line antiarrythmic for ventricular tachycardia with a pulse? - ✔Amiodarone
If the patient with supraventricular tachycardia is stable, vagal maneuvers may be used
to stimulate the vagus nerve which releases _____. - ✔Acetylcholine
Which three (3) are examples of supraventricular tachycardia (SVT)? - ✔B. Atrial fibrillation
C. Atrial flutter
D. Junctional tachycardia
Correct
What is the initial treatment for 3rd degree heart block? - ✔Transcutaneous pacer
Which antiarrythmic is given for pulseless ventricular tachycardia (VT) and
ventricular fibrillation (Vfib) that is unresponsive to CPR, defibrillation, and a
vasopressor? - ✔Amiodarone
, Which of the following ECG strip descriptions would indicate the most significant blockage? -
✔No PRI; more Ps than QRSs; ventricular rate of 20-40 bpm; QRS > 0.10 seconds
All junctional rhythms originate from which pacemaker site? - ✔. AV junction
Which is the correct intervention sequence for ventricular fibrillation? - ✔. Access the
patient; initiate CPR; defibrillate ASAP
What period of time defines a sustained ventricular tachycardia? - ✔30 seconds
What is the initial treatment response for a patient in either pulseless ventricular tachycardia or
ventricular fibrillation? - ✔Provide quality CPR and defibrillate
Heart blocks occur when there is a partial or complete interruption in the cardiac
conduction system. - t o f - ✔True
The ECG monitor displays a normal-appearing rhythm but when you assess the patient they are
unresponsive and pulseless. What rhythm would this be? - ✔pulseless electrical activity (PEA)
What is the initial step in treating stable sinus tachycardia? - ✔Treat the underlying cause
What rhythm is delayed in the AV node causing a prolonged PR interval? - ✔1st degree
heart block
A patient whose ECG shows a rapid, chaotic rhythm and no discernible P waves or
QRS complexes is probably in what dysrhythmia? - ✔Ventricular fibrillation
Three or more consecutive premature ventricular complexes (PVC) at a rate greater than 100
is called: - ✔Ventricular tachycardia (VT)
Which of the following statements is inaccurate about idioventricular rhythms? - ✔. The
PR interval in this rhythm is within normal range
What is the first-line antiarrythmic for ventricular tachycardia with a pulse? - ✔Amiodarone
If the patient with supraventricular tachycardia is stable, vagal maneuvers may be used
to stimulate the vagus nerve which releases _____. - ✔Acetylcholine
Which three (3) are examples of supraventricular tachycardia (SVT)? - ✔B. Atrial fibrillation
C. Atrial flutter
D. Junctional tachycardia
Correct
What is the initial treatment for 3rd degree heart block? - ✔Transcutaneous pacer
Which antiarrythmic is given for pulseless ventricular tachycardia (VT) and
ventricular fibrillation (Vfib) that is unresponsive to CPR, defibrillation, and a
vasopressor? - ✔Amiodarone
, Which of the following ECG strip descriptions would indicate the most significant blockage? -
✔No PRI; more Ps than QRSs; ventricular rate of 20-40 bpm; QRS > 0.10 seconds
All junctional rhythms originate from which pacemaker site? - ✔. AV junction
Which is the correct intervention sequence for ventricular fibrillation? - ✔. Access the
patient; initiate CPR; defibrillate ASAP
What period of time defines a sustained ventricular tachycardia? - ✔30 seconds
What is the initial treatment response for a patient in either pulseless ventricular tachycardia or
ventricular fibrillation? - ✔Provide quality CPR and defibrillate
Heart blocks occur when there is a partial or complete interruption in the cardiac
conduction system. - t o f - ✔True
The ECG monitor displays a normal-appearing rhythm but when you assess the patient they are
unresponsive and pulseless. What rhythm would this be? - ✔pulseless electrical activity (PEA)
What is the initial step in treating stable sinus tachycardia? - ✔Treat the underlying cause
What rhythm is delayed in the AV node causing a prolonged PR interval? - ✔1st degree
heart block
A patient whose ECG shows a rapid, chaotic rhythm and no discernible P waves or
QRS complexes is probably in what dysrhythmia? - ✔Ventricular fibrillation
