Advanced Cardiac Dysrhythmias Exam – Actual
Questions and Answers (Latest Update 2025-2026)
– Complete Exam Material
,Introduction:
This document provides the latest collection of actual exam questions
and answers for Advanced Cardiac Dysrhythmias, updated for the
academic years 2025-2026. It covers a wide range of cardiac rhythm
disorders including atrial fibrillation, atrial flutter, ventricular
tachycardia, ventricular fibrillation, heart blocks, pacemaker
rhythms, and conduction abnormalities. The material includes
hallmark ECG features, causes, symptoms, and treatments, making it
a comprehensive resource for exam preparation and clinical practice.
Exam Questions and Answers:
23. Hallmarks of Afib--- correct answer ---Chaotic, fib waves (wavy
baseline) No P wave Irregular R-R space
QRS is normal
24. Fluid volume deficit / hypovolemia will lead to what
dysrhythmias?--- correct answer ---Tachy- dysrhythmias
HR is increasing in response to decreased SV
25. Causes of fluid volume deficit--- correct answer ---hemorrhage
vomiting diarrhea fever
overdose on diuretics
26. Fluid volume overload / hypervolemia may lead to what
dysrhythmias?--- correct answer ----
Premature beats and HR abnormalities
,27. A common cause of fluid volume overload is--- correct
answer ---CHF; ventricular enlargement, decreased contractility
28. Hypoxemia occurs when PaO2 is < %--- correct answer ---80
29. What does hypoxemia result in on the EKG--- correct
answer ---ST depression (which is an indicator of cardiac
ischemia) OR an inverted T wave
30. Hypothermia will cause which dysrhythmia?--- correct
answer ---bradycardia prolonged PR/QT
Wide QRS
31. Major concern of Afib--- correct answer ---Loss of normal atrial
kick The ventricles inadequately fill, SV diminishes 25%
Increased risk of clots / PE / Stroke because of inadequate emptying
32. B/c of increased risk of clots, what do we also prescribed
patients with A-fib--- correct answer ---Anticoagulants
33. T/F The greatest risk of a stroke or PE occurring is when the
rhythm returns to normal sinus rhythm--- correct answer ---True;
this is due to the atria now fully contracting and expelling the clots into
the ventricles and then to either the brain or lungs
34. Medications for Tx of Afib--- correct answer ---
Amiodarone Digoxin BBs CCBs
35. Synchronized Cardioversion--- correct answer ---
provides a direct electrical current to the heart
used to treat afib, a flutter, and SVT
36. What does synchronized cardioversion prevent?--- correct
, answer ---Shock on the T wave b/c it can produce ventricular
fibrillation
37. Prior to a cardioversion what do we give the patient?--- correct
answer ---Pain meds Relaxation meds such as diazepam
38. Where do junctional rhythms originate?--- correct answer ---AV
node
39. Characteristics of a junctional rhythm--- correct answer ---
P wave is absent, inverted, or buried in the QRS
HR is 40-60 bpm
accelerated junctional rate = 60-100 junctional tachycardia rate =
>100
40. Causes of Junctional Rhythm--- correct answer ---Digoxin toxicity
Sinus node dysfunction (sick sinus syndrome aka fibrosis around the
SA node) Beta blockers
Amiodarone
Returning from recent heart surgery Vagal stimulation
41. Treatment of Junctional Rhythm--- correct answer ---Withhold
any meds causing it Administer ATROPINE
Pacemaker may be needed if chronic
42. Premature Ventricular Contractions (PVCs)--- correct answer ---
Originate in the ventricles QRS is WIDE (>0.12 sec) and BIZARRE
Questions and Answers (Latest Update 2025-2026)
– Complete Exam Material
,Introduction:
This document provides the latest collection of actual exam questions
and answers for Advanced Cardiac Dysrhythmias, updated for the
academic years 2025-2026. It covers a wide range of cardiac rhythm
disorders including atrial fibrillation, atrial flutter, ventricular
tachycardia, ventricular fibrillation, heart blocks, pacemaker
rhythms, and conduction abnormalities. The material includes
hallmark ECG features, causes, symptoms, and treatments, making it
a comprehensive resource for exam preparation and clinical practice.
Exam Questions and Answers:
23. Hallmarks of Afib--- correct answer ---Chaotic, fib waves (wavy
baseline) No P wave Irregular R-R space
QRS is normal
24. Fluid volume deficit / hypovolemia will lead to what
dysrhythmias?--- correct answer ---Tachy- dysrhythmias
HR is increasing in response to decreased SV
25. Causes of fluid volume deficit--- correct answer ---hemorrhage
vomiting diarrhea fever
overdose on diuretics
26. Fluid volume overload / hypervolemia may lead to what
dysrhythmias?--- correct answer ----
Premature beats and HR abnormalities
,27. A common cause of fluid volume overload is--- correct
answer ---CHF; ventricular enlargement, decreased contractility
28. Hypoxemia occurs when PaO2 is < %--- correct answer ---80
29. What does hypoxemia result in on the EKG--- correct
answer ---ST depression (which is an indicator of cardiac
ischemia) OR an inverted T wave
30. Hypothermia will cause which dysrhythmia?--- correct
answer ---bradycardia prolonged PR/QT
Wide QRS
31. Major concern of Afib--- correct answer ---Loss of normal atrial
kick The ventricles inadequately fill, SV diminishes 25%
Increased risk of clots / PE / Stroke because of inadequate emptying
32. B/c of increased risk of clots, what do we also prescribed
patients with A-fib--- correct answer ---Anticoagulants
33. T/F The greatest risk of a stroke or PE occurring is when the
rhythm returns to normal sinus rhythm--- correct answer ---True;
this is due to the atria now fully contracting and expelling the clots into
the ventricles and then to either the brain or lungs
34. Medications for Tx of Afib--- correct answer ---
Amiodarone Digoxin BBs CCBs
35. Synchronized Cardioversion--- correct answer ---
provides a direct electrical current to the heart
used to treat afib, a flutter, and SVT
36. What does synchronized cardioversion prevent?--- correct
, answer ---Shock on the T wave b/c it can produce ventricular
fibrillation
37. Prior to a cardioversion what do we give the patient?--- correct
answer ---Pain meds Relaxation meds such as diazepam
38. Where do junctional rhythms originate?--- correct answer ---AV
node
39. Characteristics of a junctional rhythm--- correct answer ---
P wave is absent, inverted, or buried in the QRS
HR is 40-60 bpm
accelerated junctional rate = 60-100 junctional tachycardia rate =
>100
40. Causes of Junctional Rhythm--- correct answer ---Digoxin toxicity
Sinus node dysfunction (sick sinus syndrome aka fibrosis around the
SA node) Beta blockers
Amiodarone
Returning from recent heart surgery Vagal stimulation
41. Treatment of Junctional Rhythm--- correct answer ---Withhold
any meds causing it Administer ATROPINE
Pacemaker may be needed if chronic
42. Premature Ventricular Contractions (PVCs)--- correct answer ---
Originate in the ventricles QRS is WIDE (>0.12 sec) and BIZARRE
