Free Practice Quiz Question List

3 Cardiac Arrhythmias Online Quiz Questions

Use this free practice quiz with 20 questions to review 3 Cardiac Arrhythmias, test your knowledge, and prepare for your next test or exam.

20 questions

Fill in the blank

1 point

In first-degree AV block, the PR interval is , and every P wave is conducted to a QRS.

Written response

1 point

What rhythm is present when P waves and QRS complexes have no consistent relationship and the atria and ventricles beat independently? Enter the rhythm name.

Choose one

1 point

An ECG shows progressively longer PR intervals until one P wave is not followed by a QRS. Which rhythm pattern best fits these findings?

A
The PR interval stays constant in conducted beats, with intermittent nonconducted P waves.
B
The PR interval progressively lengthens until a P wave is not followed by a QRS.
C
Every P wave is conducted, but the PR interval is prolonged.
D
P waves and QRS complexes have no consistent relationship.

Choose all

1 point

Which findings are identified as signs of cardiopulmonary compromise? Select all that apply.

A
Hypotension
B
Acutely altered mental status
C
Shock
D
An isolated slow heart rate without symptoms
E
Ischemic chest discomfort
F
Acute heart failure

True or false

1 point

Pulseless ventricular tachycardia should be treated with synchronized cardioversion.

A
True
B
False

Choose all

1 point

For a patient with a pulse who needs initial arrhythmia assessment and support, which actions are appropriate? Select all that apply.

A
Support airway and breathing.
B
Give oxygen if the patient is hypoxemic.
C
Apply cardiac monitoring.
D
Wait for a 12-lead ECG before starting urgent treatment.
E
Obtain vascular access.
F
Obtain a 12-lead ECG when feasible.

Choose one

1 point

A stable patient has a regular narrow-complex tachycardia consistent with SVT. Which approach is appropriate?

A
Give adenosine for any fast rhythm, including irregularly irregular rhythms.
B
Use synchronized cardioversion immediately in every stable case.
C
Try vagal maneuvers; adenosine may be used for an appropriate regular narrow-complex tachycardia.
D
Give verapamil or diltiazem because this is a wide-complex rhythm.

Fill in the blank

1 point

When sinus tachycardia reflects a problem such as fever, pain, hypovolemia, hypoxia, or infection, treatment should address the rather than reflexively suppressing the rate.

Written response

1 point

For bradycardia with a pulse causing compromise, what is the maximum total atropine dose recommended by the current AHA algorithm? Enter a number in mg.

True or false

1 point

When pre-excited atrial fibrillation is suspected, AV-nodal blocking drugs should be avoided and expert emergency care sought.

A
True
B
False

Choose one

1 point

A patient with atrial fibrillation and a rapid ventricular response becomes hemodynamically unstable but still has a pulse. What immediate treatment is recommended?

A
Use unsynchronized defibrillation as the routine treatment for any rapid AF with a pulse.
B
Perform immediate synchronized cardioversion.
C
Delay electrical treatment until a 12-lead ECG is obtained.
D
Use vagal maneuvers as the definitive treatment for unstable AF.

Open ended

1 point

A patient has bradycardia with a pulse and signs of cardiopulmonary compromise. Describe the initial supportive measures and the recommended treatment sequence if the initial medication is ineffective.

True or false

1 point

If the cause of a wide-complex tachycardia is uncertain, treat it as potentially ventricular and obtain expert help.

A
True
B
False

Choose one

1 point

An ECG shows a prolonged PR interval that remains constant, and every P wave is followed by a QRS complex. Which rhythm finding does this describe?

A
Progressive PR lengthening followed by a nonconducted P wave
B
A prolonged, constant PR interval with every P wave followed by a QRS
C
Intermittent nonconducted P waves with no progressive PR lengthening
D
Independent atrial and ventricular activity

Choose one

1 point

A patient has a regular narrow-complex tachycardia with a sinus P wave before each QRS during a fever. Which approach is most appropriate?

A
Give adenosine to suppress the sinus rate
B
Perform synchronized cardioversion
C
Assess and treat the fever and other underlying causes
D
Begin transcutaneous pacing

Written response

1 point

What is the upper end of the usual PR interval? Enter your answer in seconds.

Choose one

1 point

A stable patient has a regular narrow-complex tachycardia that began abruptly. Which intervention is appropriate to try first?

A
Try vagal maneuvers
B
Perform immediate synchronized cardioversion
C
Give adenosine for any irregular wide-complex rhythm
D
Begin unsynchronized defibrillation

Written response

1 point

For which medication does the AHA algorithm allow consideration in a stable, regular monomorphic wide-complex tachycardia? Enter the medication name.

Choose one

1 point

A patient with atrial fibrillation and a rapid ventricular response becomes hemodynamically unstable but still has a pulse. What is the recommended immediate electrical treatment?

A
Try vagal maneuvers before any other treatment
B
Perform immediate synchronized cardioversion
C
Give adenosine because the rhythm is irregular
D
Use unsynchronized defibrillation while a pulse is present

Choose one

1 point

Which ECG relationship best identifies third-degree (complete) AV block?

A
Every P wave is conducted with a constant prolonged PR interval
B
The PR interval lengthens progressively before a dropped QRS
C
Nonconducted P waves occur without progressive PR lengthening
D
P waves and QRS complexes have no consistent relationship