NATIONAL REGISTRY OF EMERGENCY MEDICAL
TECHNICIANS (NREMT) PRACTICE EXAMINATION-2026
HEART BLOCK DYSRHYTHMIAS ASSESSMENT EXAM
(First-Degree AV Block, Second-Degree AV Block Type I & II, Third-
Degree AV Block)
EMT-Advanced / AEMT / Paramedic (Practice Assessment)
ECG Interpretation & Clinical Management
Academic Cycle: 2025/2026
What causes a heart block dysrhythmia?
A) The ectopic focus originates above the ventricles.
B) The electrical current has difficulty traveling down the normal conduction pathway.
C) The rhythm originates at the AV junctional tissue, producing retrograde depolarization.
D) An ectopic beat originates in the right or left atrium, resulting in abnormal conduction.
B
In first-degree heart block, the electrical current is delayed or blocked along normal conduction
pathways ________.
A) Below the AV junction
B) In the ventricles
C) At or above the AV junction
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,D) Above the SA node
C
Which heart block rhythm has a constant PR interval that measures greater than 0.20 seconds?
A) First-degree AV block
B) Second-degree AV block, Mobitz type I
C) Second-degree AV block, Mobitz type II
D) Third-degree AV block
A
What is the heart rate range for first-degree heart block?
A) 20 to 40 bpm
B) 40 to 60 bpm
C) 60 to 100 bpm
D) 100 to 150 bpm
C
Which heart block dysrhythmia has regular P-P and R-R intervals that both occur at the same
rate?
A) First-degree heart block
B) Second-degree heart block, Mobitz type I
C) Second-degree heart block, Mobitz type II
D) Third-degree heart block
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, A
What is the term for the observation guidelines used to assess the blood supply to the vital
organs of the body to maintain normal function?
A) Cardiac output parameters
B) Cardiac cycle
C) Output display
D) Systemic circulation parameters
A
What symptoms would you observe in a patient with first-degree AV block?
A) The patient would experience extreme fatigue and weakness.
B) The patient would have normal cardiac output and no symptoms.
C) The patient would have a rapid pulse and shortness of breath.
D) The patient would be unconscious.
B
What type of impulse occurs too soon after the preceding impulse and causes a period when no
other impulses can occur in the ventricles?
A) Loss of capture
B) Atrial kick
C) Blocked or non-conducted impulse
D) Inhibited impulse
C
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TECHNICIANS (NREMT) PRACTICE EXAMINATION-2026
HEART BLOCK DYSRHYTHMIAS ASSESSMENT EXAM
(First-Degree AV Block, Second-Degree AV Block Type I & II, Third-
Degree AV Block)
EMT-Advanced / AEMT / Paramedic (Practice Assessment)
ECG Interpretation & Clinical Management
Academic Cycle: 2025/2026
What causes a heart block dysrhythmia?
A) The ectopic focus originates above the ventricles.
B) The electrical current has difficulty traveling down the normal conduction pathway.
C) The rhythm originates at the AV junctional tissue, producing retrograde depolarization.
D) An ectopic beat originates in the right or left atrium, resulting in abnormal conduction.
B
In first-degree heart block, the electrical current is delayed or blocked along normal conduction
pathways ________.
A) Below the AV junction
B) In the ventricles
C) At or above the AV junction
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,D) Above the SA node
C
Which heart block rhythm has a constant PR interval that measures greater than 0.20 seconds?
A) First-degree AV block
B) Second-degree AV block, Mobitz type I
C) Second-degree AV block, Mobitz type II
D) Third-degree AV block
A
What is the heart rate range for first-degree heart block?
A) 20 to 40 bpm
B) 40 to 60 bpm
C) 60 to 100 bpm
D) 100 to 150 bpm
C
Which heart block dysrhythmia has regular P-P and R-R intervals that both occur at the same
rate?
A) First-degree heart block
B) Second-degree heart block, Mobitz type I
C) Second-degree heart block, Mobitz type II
D) Third-degree heart block
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, A
What is the term for the observation guidelines used to assess the blood supply to the vital
organs of the body to maintain normal function?
A) Cardiac output parameters
B) Cardiac cycle
C) Output display
D) Systemic circulation parameters
A
What symptoms would you observe in a patient with first-degree AV block?
A) The patient would experience extreme fatigue and weakness.
B) The patient would have normal cardiac output and no symptoms.
C) The patient would have a rapid pulse and shortness of breath.
D) The patient would be unconscious.
B
What type of impulse occurs too soon after the preceding impulse and causes a period when no
other impulses can occur in the ventricles?
A) Loss of capture
B) Atrial kick
C) Blocked or non-conducted impulse
D) Inhibited impulse
C
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