Arrhythmias - QUIZ Flashcards
Which of the following is a common cause of right axis deviation?
a) Atrial septal defect
b) Right ventricular hypertrophy
c) Ventricular septal defect
d) Left ventricular hypertrophy
b) Right ventricular hypertrophy
What is the most common cause of left axis deviation?
a) Atrial septal defects
b) Right ventricular hypertrophy
c) Left ventricular hypertrophy
d) Defects in the conduction system
d) Defects in the conduction system
Cellular hypoxia can lead to inactivation of fast sodium channels and transform a non-pacemaker cell into a pacemaker cell. True or False?
True
Reentry circuits between the atria and ventricles:
a) Can produce ventricular tachycardias
b) Can sometimes be abolished by drugs that increase the effective refectory period of action potentials
c) Require the presence of bidirectional block
d) Are thought to be a major mechanism in the generation of bradycardias
b) Can sometimes be abolished by drugs that increase the effective refectory period of action potentials
A 62 year old male post-thrombolysis. What is the rhythm?
a) Atrial fibrillation
b) Accelerated idioventricular rhythm
c) Ventricular tachycardia
d) NSR
b) Accelerated idioventricular rhythm
A 68 year old female with ischemic chest pain going for PCI. What is the rhythm?
a) Sinus bradycardia
b) Normal sinus rhythm
c) AV block, 2nd degree type 2
d) AV block, 2nd degree type 1
d) AV block, 2nd degree type 1
Your patient from Question 2 complains of worsening chest pain and dizziness. What is the rhythm?
a) AV block, 2nd degree type 2
b) Complete heart block
c) Idioventricular rhythm
d) Unchanged from Question 2
b) Complete heart block
An 82 year old male presents to the ED with syncope. What is the rhythm?
a) Bidirectional VT
b) Sinus tachycardia
c) Torsades de Pointes
d) Atrial fibrillation
a) Bidirectional VT
A 42 year old male presents to ED with intermittent palpitations. He is symptom-free at the time of this ECG. Which of the following pathologies are evident? Select ALL that apply.
a) U-waves
b) Aberrantly conducted beats
c) Premature ventricular beats
d) Delta waves
e) NSR
f) Atrial flutter
g) Osborne waves
h) Atrial fibrillation
b) Aberrantly conducted beats
d) Delta waves
h) Atrial fibrillation
Your patient from Question 5 develops palpitations with dizziness. He does not endorse chest pain or SOB, and his BP is normal. What treatment should you AVOID based on your interpretation of the rhythm and underlying pathology? Select ALL that apply.
a) Adenosine
b) Procainamide
c) Diltiazem
d) Metoprolol
a) Adenosine
c) Diltiazem
d) Metoprolol
A 46 year old female presents to the ED with palpitations. What is the rhythm?
a) Atrial flutter
b) Sinus tachycardia
c) Accelerated junctional rhythm
d) AV node re-entry tachycardia (AVNRT)
d) AV node re-entry tachycardia (AVNRT)
A 23 year old male with suspected head injury going for CT scan. He is known to have cocaine and alcohol on board. What is the rhythm?
a) Atrial tachycardia
b) Sinus tachycardia
c) Normal sinus rhythm
d) Junctional tachycardia
a) Atrial tachycardia
A 76 year old male with a syncopal episode. What is the pathology?
a) Brugada syndrome
b) Antrerolateral STEMI
c) Bifascicular block
d) Right bundle branch block
c) Bifascicular block
An 82 year old female presents to the ED with weakness and SOB. Which of the following are evident on this ECG? Select ALL that apply.
a) AV block, 2nd degree type 1
b) LPFB
c) RBBB
d) AV block, 2nd degree type 2
e) LBBB
f) Left axis deviation
g) Right axis deviation
h) LAFB
i) AV block, 3rd degree
c) RBBB
f) Left axis deviation
h) LAFB
i) AV block, 3rd degree
