CARDIAC RHYTHM INTERPRETATION · OBJECTIVE ASSESSMENT
A+ VERIFIED
Relias Dysrhythmia Basic Test — Complete
Official Exam
35 Questions Full Rationales Verified Answers
35 5 100%
QUESTIONS SECTIONS RATIONALES
Complete coverage Core exam domains Every answer explained
WHAT THIS COVERS
01 Sinus Rhythms
02 Atrial Rhythms
03 Junctional Rhythms
04 Ventricular Rhythms
05 Heart Blocks
ABOUT THIS ASSESSMENT
Build mastery in basic dysrhythmia interpretation — from sinus rhythms and atrial
rhythms to junctional rhythms, ventricular rhythms, and heart blocks. This original
study bank targets application and analysis skills for the Relias Dysrhythmia Basic
Test, with full rationales for every answer. For review use only; not an institutional
proctored assessment.
PASSING SCORE LEVEL FORMAT
80% Basic (Cardiac Monitoring) Application / Analysis
STUVIA ACTUAL EXAM Page 1
, SECTION 1: Sinus Rhythms
Q1. A 62-year-old patient on continuous cardiac monitoring has a regular rhythm at 78 bpm. P waves are upright and identical
in lead II, each followed by a QRS complex of normal duration, and the PR interval measures 0.16 seconds. The nurse
identifies this rhythm as which of the following?
A. Normal sinus rhythm
B. Sinus bradycardia
C. First-degree AV block
D. Sinus arrhythmia
Correct Answer: A
Rationale:
Normal sinus rhythm is defined by a rate of 60–100 bpm, regular rhythm, upright identical P waves preceding each QRS, and a normal PR
interval of 0.12–0.20 seconds. The described tracing meets all criteria. Sinus bradycardia requires a rate below 60, and first-degree block
would show a prolonged PR interval.
Q2. During morning rounds, a telemetry strip shows a regular rhythm at 48 bpm with upright P waves before every QRS and a
PR interval of 0.18 seconds. The patient is alert, blood pressure is 118/72 mmHg, and denies dizziness. Which
intervention is most appropriate at this time?
A. Prepare for immediate transcutaneous pacing
B. Administer atropine 1 mg IV push
C. Continue monitoring and document the rhythm
D. Initiate dopamine infusion at 5 mcg/kg/min
Correct Answer: C
Rationale:
Sinus bradycardia that is asymptomatic with stable hemodynamics does not require urgent treatment. Observation and documentation are
appropriate. Atropine, pacing, or vasoactive infusions are reserved for symptomatic or unstable bradycardia.
Q3. A postoperative patient develops a sudden increase in heart rate to 128 bpm. The rhythm is regular, P waves remain
upright and precede each QRS with a PR interval of 0.14 seconds, and QRS complexes are narrow. The most likely
rhythm is:
A. Atrial flutter with 2:1 conduction
B. Sinus tachycardia
C. Junctional tachycardia
D. Ventricular tachycardia
Correct Answer: B
Rationale:
Sinus tachycardia is characterized by a rate greater than 100 bpm, regular rhythm, and normal sinus P waves with normal PR and QRS
intervals. The description matches these criteria. Atrial flutter typically shows flutter waves, and ventricular tachycardia produces wide QRS
complexes.
STUVIA ACTUAL EXAM · Page 2
A+ VERIFIED
Relias Dysrhythmia Basic Test — Complete
Official Exam
35 Questions Full Rationales Verified Answers
35 5 100%
QUESTIONS SECTIONS RATIONALES
Complete coverage Core exam domains Every answer explained
WHAT THIS COVERS
01 Sinus Rhythms
02 Atrial Rhythms
03 Junctional Rhythms
04 Ventricular Rhythms
05 Heart Blocks
ABOUT THIS ASSESSMENT
Build mastery in basic dysrhythmia interpretation — from sinus rhythms and atrial
rhythms to junctional rhythms, ventricular rhythms, and heart blocks. This original
study bank targets application and analysis skills for the Relias Dysrhythmia Basic
Test, with full rationales for every answer. For review use only; not an institutional
proctored assessment.
PASSING SCORE LEVEL FORMAT
80% Basic (Cardiac Monitoring) Application / Analysis
STUVIA ACTUAL EXAM Page 1
, SECTION 1: Sinus Rhythms
Q1. A 62-year-old patient on continuous cardiac monitoring has a regular rhythm at 78 bpm. P waves are upright and identical
in lead II, each followed by a QRS complex of normal duration, and the PR interval measures 0.16 seconds. The nurse
identifies this rhythm as which of the following?
A. Normal sinus rhythm
B. Sinus bradycardia
C. First-degree AV block
D. Sinus arrhythmia
Correct Answer: A
Rationale:
Normal sinus rhythm is defined by a rate of 60–100 bpm, regular rhythm, upright identical P waves preceding each QRS, and a normal PR
interval of 0.12–0.20 seconds. The described tracing meets all criteria. Sinus bradycardia requires a rate below 60, and first-degree block
would show a prolonged PR interval.
Q2. During morning rounds, a telemetry strip shows a regular rhythm at 48 bpm with upright P waves before every QRS and a
PR interval of 0.18 seconds. The patient is alert, blood pressure is 118/72 mmHg, and denies dizziness. Which
intervention is most appropriate at this time?
A. Prepare for immediate transcutaneous pacing
B. Administer atropine 1 mg IV push
C. Continue monitoring and document the rhythm
D. Initiate dopamine infusion at 5 mcg/kg/min
Correct Answer: C
Rationale:
Sinus bradycardia that is asymptomatic with stable hemodynamics does not require urgent treatment. Observation and documentation are
appropriate. Atropine, pacing, or vasoactive infusions are reserved for symptomatic or unstable bradycardia.
Q3. A postoperative patient develops a sudden increase in heart rate to 128 bpm. The rhythm is regular, P waves remain
upright and precede each QRS with a PR interval of 0.14 seconds, and QRS complexes are narrow. The most likely
rhythm is:
A. Atrial flutter with 2:1 conduction
B. Sinus tachycardia
C. Junctional tachycardia
D. Ventricular tachycardia
Correct Answer: B
Rationale:
Sinus tachycardia is characterized by a rate greater than 100 bpm, regular rhythm, and normal sinus P waves with normal PR and QRS
intervals. The description matches these criteria. Atrial flutter typically shows flutter waves, and ventricular tachycardia produces wide QRS
complexes.
STUVIA ACTUAL EXAM · Page 2
