ADVANCED RELIAS DYSRHYTHMIAS A & B NEWEST
2026 ACTUAL EXAM TEST BANK| COMPLETE REAL
EXAM QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) ALREADY GRADED A+ (MOST
RECENT!!)
Question 1:
The rhythm strip shows a regular ventricular rate of 180 bpm,
narrow QRS complexes, and no discernible P waves. The most
likely rhythm is:
A) Atrial flutter
B) Sinus tachycardia
C) Paroxysmal supraventricular tachycardia (PSVT)
D) Ventricular tachycardia
Correct Answer: C
Rationale: PSVT classically presents with sudden-onset narrow-
complex tachycardia at 150–250 bpm; P waves are often
1
,hidden within or immediately after the QRS complex. Sinus
tachycardia has visible P waves, atrial flutter has sawtooth
waves, and VT has wide QRS complexes .
Question 2:
Which ECG finding is the hallmark of second-degree AV block
Type II (Mobitz II)?
A) Progressive PR lengthening then a dropped QRS
B) Constant PR interval with intermittent non-conducted P waves
C) PR shortening after a pause
D) 1:1 AV conduction at 120 bpm
Correct Answer: B
Rationale: Mobitz II is a high-risk block where the PR interval
does NOT lengthen; instead, atrial impulses suddenly fail to
conduct, often heralding progression to complete heart block .
2
,Question 3:
A wide-complex tachycardia at 200 bpm shows extreme axis
deviation and AV dissociation. The rhythm is:
A) Atrial fibrillation with aberrancy
B) PSVT with bundle-branch block
C) Ventricular tachycardia
D) Sinus tachycardia with PVCs
Correct Answer: C
Rationale: Wide QRS >120 ms, rate >100 bpm, AV dissociation,
and extreme axis deviation are all VT criteria; treat as VT until
proven otherwise .
Question 4:
The rhythm strip shows saw-tooth flutter waves at 300 bpm with
2:1 conduction. The ventricular rate is:
A) 150 bpm
3
, B) 300 bpm
C) 100 bpm
D) 250 bpm
Correct Answer: A
Rationale: Classic atrial flutter has an atrial rate of
approximately 300 bpm; 2:1 conduction yields a ventricular rate
of exactly half, which is 150 bpm .
Question 5:
Which intervention is first-line for unstable polymorphic VT with a
pulse?
A) Adenosine 12 mg IV push
B) Immediate synchronized cardioversion
C) Amiodarone 150 mg IV over 10 min
D) Vagal maneuvers
4
2026 ACTUAL EXAM TEST BANK| COMPLETE REAL
EXAM QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) ALREADY GRADED A+ (MOST
RECENT!!)
Question 1:
The rhythm strip shows a regular ventricular rate of 180 bpm,
narrow QRS complexes, and no discernible P waves. The most
likely rhythm is:
A) Atrial flutter
B) Sinus tachycardia
C) Paroxysmal supraventricular tachycardia (PSVT)
D) Ventricular tachycardia
Correct Answer: C
Rationale: PSVT classically presents with sudden-onset narrow-
complex tachycardia at 150–250 bpm; P waves are often
1
,hidden within or immediately after the QRS complex. Sinus
tachycardia has visible P waves, atrial flutter has sawtooth
waves, and VT has wide QRS complexes .
Question 2:
Which ECG finding is the hallmark of second-degree AV block
Type II (Mobitz II)?
A) Progressive PR lengthening then a dropped QRS
B) Constant PR interval with intermittent non-conducted P waves
C) PR shortening after a pause
D) 1:1 AV conduction at 120 bpm
Correct Answer: B
Rationale: Mobitz II is a high-risk block where the PR interval
does NOT lengthen; instead, atrial impulses suddenly fail to
conduct, often heralding progression to complete heart block .
2
,Question 3:
A wide-complex tachycardia at 200 bpm shows extreme axis
deviation and AV dissociation. The rhythm is:
A) Atrial fibrillation with aberrancy
B) PSVT with bundle-branch block
C) Ventricular tachycardia
D) Sinus tachycardia with PVCs
Correct Answer: C
Rationale: Wide QRS >120 ms, rate >100 bpm, AV dissociation,
and extreme axis deviation are all VT criteria; treat as VT until
proven otherwise .
Question 4:
The rhythm strip shows saw-tooth flutter waves at 300 bpm with
2:1 conduction. The ventricular rate is:
A) 150 bpm
3
, B) 300 bpm
C) 100 bpm
D) 250 bpm
Correct Answer: A
Rationale: Classic atrial flutter has an atrial rate of
approximately 300 bpm; 2:1 conduction yields a ventricular rate
of exactly half, which is 150 bpm .
Question 5:
Which intervention is first-line for unstable polymorphic VT with a
pulse?
A) Adenosine 12 mg IV push
B) Immediate synchronized cardioversion
C) Amiodarone 150 mg IV over 10 min
D) Vagal maneuvers
4
