Free Practice Quiz Question List

04 Cardiovascular Assessment and ECG Interpretation Online Quiz Questions

Use this free practice quiz with 20 questions to review 04 Cardiovascular Assessment and ECG Interpretation, test your knowledge, and prepare for your next test or exam.

20 questions

Choose one

1 point

What does a surface ECG directly record?

A
It directly measures cardiac output.
B
It records electrical potential differences from multiple views.
C
It directly measures coronary blood flow.
D
It confirms that each electrical beat produces a pulse.

Choose one

1 point

At a paper speed of 25 mm/s, a regular rhythm has four large boxes between successive R waves. What is the estimated heart rate?

A
About 50/min
B
About 60/min
C
About 75/min
D
About 150/min

Choose one

1 point

An ECG shows progressively longer PR intervals followed by a dropped QRS complex. Which rhythm best fits this pattern?

A
First-degree AV block
B
Second-degree AV block, Mobitz I
C
Second-degree AV block, Mobitz II
D
Third-degree AV block

Choose one

1 point

Which group of leads is the approximate lateral territory on a standard ECG?

A
I, aVL, V5, and V6
B
II, III, and aVF
C
V1–V4
D
V7–V9

Choose all

1 point

A patient has tachycardia. Select all findings identified as signs of cardiopulmonary compromise.

A
Hypotension
B
Mild anxiety without other concerning findings
C
Acute altered mental status
D
Signs of shock
E
Acute heart failure

Choose all

1 point

Select all accurate statements about a standard 12-lead ECG.

A
It uses 10 electrodes to create 12 leads.
B
Its six limb leads view the heart in the frontal plane.
C
It uses 12 electrodes to create 10 leads.
D
Its six chest leads view the heart in the horizontal plane.

True or false

1 point

A surface ECG can show electrical activity without proving that the heart is producing adequate mechanical circulation.

A
True
B
False

True or false

1 point

When a wide-complex tachycardia is uncertain, the material advises treating it as ventricular tachycardia until expert evaluation establishes otherwise.

A
True
B
False

True or false

1 point

Pulseless electrical activity is a shockable arrest rhythm.

A
True
B
False

Written response

1 point

What rhythm is characterized by no consistent discrete P waves and an irregularly irregular ventricular response?

Written response

1 point

At the usual paper speed of 25 mm/s, how many seconds does one small horizontal ECG box represent?

Fill in the blank

1 point

The normally initiates each heartbeat. The impulse then pauses briefly at the before traveling through the His-Purkinje system.

Fill in the blank

1 point

A premature ventricular complex is typically and has no preceding .

Open ended

1 point

A monitor shows an organized electrical rhythm, but the patient has no palpable pulse. Explain why the tracing alone cannot establish adequate circulation and describe the immediate management priority.

Choose one

1 point

Why does the left ventricle have the greatest muscle mass of the heart’s chambers?

A
It receives systemic venous blood and pumps it to the lungs.
B
It pumps blood into systemic circulation against higher resistance.
C
It supplies the myocardium through the coronary arteries.
D
It delays conduction between the atria and ventricles.

Choose one

1 point

On a standard 12-lead ECG, which statement correctly describes the viewing planes of the limb and chest leads?

A
Six limb leads view the heart in the horizontal plane, and six chest leads view it in the frontal plane.
B
Six limb leads view the heart in the frontal plane, and six chest leads view it in the horizontal plane.
C
Ten limb leads view the heart in the frontal plane, and two chest leads view it in the horizontal plane.
D
All 12 leads view the heart in the same plane.

Choose one

1 point

Which ECG pattern most strongly supports atrial fibrillation?

A
Regular R–R intervals with a consistent sinus P wave before every QRS
B
Progressively lengthening PR intervals followed by a dropped QRS
C
No consistent discrete P waves and an irregularly irregular ventricular response
D
Regular flutter waves with an unchanging ventricular response

Choose one

1 point

At a paper speed of $25\ \mathrm{mm/s}$ , a regular rhythm has four large boxes between successive R waves. What is the estimated heart rate?

A
50 beats/min
B
60 beats/min
C
75 beats/min
D
150 beats/min

Written response

1 point

At the usual paper speed of $25\ \mathrm{mm/s}$ , an interval spans four small horizontal boxes. What is its duration in seconds?

Written response

1 point

An irregular rhythm strip recorded at the standard paper speed contains 8 QRS complexes in 6 seconds. Using the 6-second method, what is the estimated heart rate? Enter your answer in beats per minute.