Relias Dysrhythmia Basic A Assessment Test
ACTUAL EXAM 2026/2027 | Complete
Exam-Style Q&A | Verified Q&A | Pass
Guaranteed - A+ Graded
Table of Contents
Section 1: Normal Sinus Rhythm & Variations (Questions 1–8) ...... 2
Section 2: Atrial Dysrhythmias (Questions 9–17) ...... 2
Section 3: Junctional & Ventricular Dysrhythmias (Questions 18–27) ...... 2
Section 4: Heart Blocks & Pacemaker Rhythms (Questions 28–35) ...... 2
Section 1: Normal Sinus Rhythm & Variations
Q1: A rhythm strip shows a regular R-R interval with 4 large boxes between consecutive R waves. Using
the big block method, the heart rate is approximately:
A. 50 bpm
B. 60 bpm
C. 75 bpm. [CORRECT]
D. 100 bpm
Correct Answer: C
Rationale: The big block method calculates heart rate by dividing 300 by the number of large boxes
between R-R intervals. With 4 large boxes between R waves, 300 ÷ 4 = 75 bpm. This places the rate
within the normal sinus rhythm range of 60-100 bpm.
Q2: A rhythm has a rate of 52 bpm, regular R-R intervals, upright P waves preceding each QRS complex,
a PR interval of 0.16 seconds, and a narrow QRS duration of 0.08 seconds. This rhythm is:
A. Normal sinus rhythm
B. Sinus bradycardia. [CORRECT]
C. Junctional rhythm
D. Sinus tachycardia
, Correct Answer: B
Rationale: Sinus bradycardia is identified by a heart rate below 60 bpm with a regular rhythm, normal
upright P waves before each QRS complex, a normal PR interval (0.12-0.20 seconds), and a narrow QRS
complex (<0.12 seconds). The rate of 52 bpm meets the criteria for bradycardia while all other
characteristics confirm the impulse originates from the sinus node.
Q3: A rhythm strip shows 8 QRS complexes in a 6-second strip. The heart rate is:
A. 60 bpm
B. 80 bpm. [CORRECT]
C. 100 bpm
D. 120 bpm
Correct Answer: B
Rationale: The 6-second strip method calculates heart rate by counting the number of QRS complexes in
a 6-second interval and multiplying by 10. With 8 QRS complexes in 6 seconds, 8 × 10 = 80 bpm. This is a
standard method for estimating heart rate when the rhythm is regular or irregular.
Q4: A rhythm has a rate of 110 bpm, regular R-R intervals, upright P waves before each QRS, a PR
interval of 0.14 seconds, and a narrow QRS of 0.10 seconds. This rhythm is:
A. Normal sinus rhythm
B. Sinus bradycardia
C. Sinus tachycardia. [CORRECT]
D. Supraventricular tachycardia
Correct Answer: C
Rationale: Sinus tachycardia is characterized by a heart rate greater than 100 bpm with a regular
rhythm, normal upright P waves preceding each QRS complex, a normal PR interval (0.12-0.20 seconds),
and a narrow QRS complex (<0.12 seconds). The rate of 110 bpm with preserved normal sinus
characteristics confirms sinus tachycardia rather than other supraventricular rhythms.
Q5: A rhythm shows a gradual lengthening of the R-R interval during inspiration and shortening during
expiration, with a rate varying between 68-82 bpm. P waves are upright and normal, PR interval is 0.15
seconds, and QRS is narrow. This rhythm is:
A. Normal sinus rhythm
B. Sinus arrhythmia. [CORRECT]
ACTUAL EXAM 2026/2027 | Complete
Exam-Style Q&A | Verified Q&A | Pass
Guaranteed - A+ Graded
Table of Contents
Section 1: Normal Sinus Rhythm & Variations (Questions 1–8) ...... 2
Section 2: Atrial Dysrhythmias (Questions 9–17) ...... 2
Section 3: Junctional & Ventricular Dysrhythmias (Questions 18–27) ...... 2
Section 4: Heart Blocks & Pacemaker Rhythms (Questions 28–35) ...... 2
Section 1: Normal Sinus Rhythm & Variations
Q1: A rhythm strip shows a regular R-R interval with 4 large boxes between consecutive R waves. Using
the big block method, the heart rate is approximately:
A. 50 bpm
B. 60 bpm
C. 75 bpm. [CORRECT]
D. 100 bpm
Correct Answer: C
Rationale: The big block method calculates heart rate by dividing 300 by the number of large boxes
between R-R intervals. With 4 large boxes between R waves, 300 ÷ 4 = 75 bpm. This places the rate
within the normal sinus rhythm range of 60-100 bpm.
Q2: A rhythm has a rate of 52 bpm, regular R-R intervals, upright P waves preceding each QRS complex,
a PR interval of 0.16 seconds, and a narrow QRS duration of 0.08 seconds. This rhythm is:
A. Normal sinus rhythm
B. Sinus bradycardia. [CORRECT]
C. Junctional rhythm
D. Sinus tachycardia
, Correct Answer: B
Rationale: Sinus bradycardia is identified by a heart rate below 60 bpm with a regular rhythm, normal
upright P waves before each QRS complex, a normal PR interval (0.12-0.20 seconds), and a narrow QRS
complex (<0.12 seconds). The rate of 52 bpm meets the criteria for bradycardia while all other
characteristics confirm the impulse originates from the sinus node.
Q3: A rhythm strip shows 8 QRS complexes in a 6-second strip. The heart rate is:
A. 60 bpm
B. 80 bpm. [CORRECT]
C. 100 bpm
D. 120 bpm
Correct Answer: B
Rationale: The 6-second strip method calculates heart rate by counting the number of QRS complexes in
a 6-second interval and multiplying by 10. With 8 QRS complexes in 6 seconds, 8 × 10 = 80 bpm. This is a
standard method for estimating heart rate when the rhythm is regular or irregular.
Q4: A rhythm has a rate of 110 bpm, regular R-R intervals, upright P waves before each QRS, a PR
interval of 0.14 seconds, and a narrow QRS of 0.10 seconds. This rhythm is:
A. Normal sinus rhythm
B. Sinus bradycardia
C. Sinus tachycardia. [CORRECT]
D. Supraventricular tachycardia
Correct Answer: C
Rationale: Sinus tachycardia is characterized by a heart rate greater than 100 bpm with a regular
rhythm, normal upright P waves preceding each QRS complex, a normal PR interval (0.12-0.20 seconds),
and a narrow QRS complex (<0.12 seconds). The rate of 110 bpm with preserved normal sinus
characteristics confirms sinus tachycardia rather than other supraventricular rhythms.
Q5: A rhythm shows a gradual lengthening of the R-R interval during inspiration and shortening during
expiration, with a rate varying between 68-82 bpm. P waves are upright and normal, PR interval is 0.15
seconds, and QRS is narrow. This rhythm is:
A. Normal sinus rhythm
B. Sinus arrhythmia. [CORRECT]
