RELIAS DYSRHYTHMIA BASIC TEST 2026 FINAL
REVIEW EXAM
◉ Which ECG waveform characterizes conduction of an electrical
impulse through the left ventricle?
A. P wave
B. QT interval
C. PR interval
D. QRS complex Answer: D. QRS complex
The QRS complex represents ventricular depolarization. The P wave
is an ECG characteristic reflecting conduction of an electrical
impulse through the atria. The PR interval is a component of an ECG
tracing reflecting conduction of an electrical impulse through the AV
node. The QT interval is an ECG characteristic reflecting the time
from ventricular depolarization to repolarization.
,◉ The nurse is assigned the following client assignment on the
clinical unit. For which client does the nurse anticipate
cardioversion as a possible medical treatment?
A. A client with third-degree heart block
B. A client with atrial dysrhythmias
C. A new myocardial infarction client
D. A client with poor kidney perfusion Answer: B. A client with atrial
dysrhythmias
he nurse is correct to identify a client with atrial dysrhythmias as a
candidate for cardioversion. The goal of cardioversion is to restore
the normal pacemaker of the heart, as well as, normal conduction. A
client with a myocardial infarction has tissue damage. The client
with poor perfusion has circulation problems. The client with heart
block has an impairment in the conduction system and may require
a pacemaker.
◉ The licensed practical nurse is setting up the room for a client
arriving at the emergency department with ventricular arrhythmias.
The nurse is most correct to place which of the following in the room
for treatment?
,A. An ECG machine
B. A defibrillator
C. A suction machine
D. Cardioversion equipment Answer: B. A defibrillator
The nurse is most correct to place a defibrillator close to the client
room if not in the room. The nurse realizes that clients with
ventricular dysrhythmias are at a high risk for fatal heart
dysrhythmia and death. A suction machine is used to remove
respiratory secretions. Cardioversion is used in a planned setting for
atrial dysrhythmias. An ECG machine records tracings of the heart
for diagnostic purposes. Most clients with history of cardiac
disorders have an ECG completed.
◉ A client's electrocardiogram (ECG) tracing reveals a ventricular
rate between 250 and 400, with saw-toothed P waves. The nurse
correctly identifies this dysrhythmia as
A. Atrial fibrillation
, B. Ventricular tachycardia
C. Ventricular fibrillation
D. Atrial flutter Answer: D. Atrial flutter
The nurse correctly identifies the electrocardiogram (ECG) tracing
as atrial flutter. Atrial flutter occurs in the atrium and creates
impulses at a regular atrial rate between 250 and 400 times per
minute. The P waves are saw-toothed in appearance. Atrial
fibrillation causes a rapid, disorganized, and uncoordinated
twitching of atrial musculature. The atrial rate is 300 to 600, and the
ventricular rate is usually 120 to 200 in untreated atrial fibrillation.
There are no discernible P waves. Ventricular fibrillation is a rapid,
disorganized ventricular rhythm that causes ineffective quivering of
the ventricles. The ventricular rate is greater than 300 per minute
and extremely irregular, without a specific pattern. The QRS shape
and duration is irregular, undulating waves without recognizable
QRS complexes. Ventricular tachycardia is defined as three or more
PVCs in a row, occurring at a rate exceeding 100 beats per minute.
◉ The nurse analayzes the electrocardiogram (ECG) tracing of a
client newly admitted to the cardiac step-down unit with a diagnosis
of chest pain. Which finding indicates the need for follow-up?
REVIEW EXAM
◉ Which ECG waveform characterizes conduction of an electrical
impulse through the left ventricle?
A. P wave
B. QT interval
C. PR interval
D. QRS complex Answer: D. QRS complex
The QRS complex represents ventricular depolarization. The P wave
is an ECG characteristic reflecting conduction of an electrical
impulse through the atria. The PR interval is a component of an ECG
tracing reflecting conduction of an electrical impulse through the AV
node. The QT interval is an ECG characteristic reflecting the time
from ventricular depolarization to repolarization.
,◉ The nurse is assigned the following client assignment on the
clinical unit. For which client does the nurse anticipate
cardioversion as a possible medical treatment?
A. A client with third-degree heart block
B. A client with atrial dysrhythmias
C. A new myocardial infarction client
D. A client with poor kidney perfusion Answer: B. A client with atrial
dysrhythmias
he nurse is correct to identify a client with atrial dysrhythmias as a
candidate for cardioversion. The goal of cardioversion is to restore
the normal pacemaker of the heart, as well as, normal conduction. A
client with a myocardial infarction has tissue damage. The client
with poor perfusion has circulation problems. The client with heart
block has an impairment in the conduction system and may require
a pacemaker.
◉ The licensed practical nurse is setting up the room for a client
arriving at the emergency department with ventricular arrhythmias.
The nurse is most correct to place which of the following in the room
for treatment?
,A. An ECG machine
B. A defibrillator
C. A suction machine
D. Cardioversion equipment Answer: B. A defibrillator
The nurse is most correct to place a defibrillator close to the client
room if not in the room. The nurse realizes that clients with
ventricular dysrhythmias are at a high risk for fatal heart
dysrhythmia and death. A suction machine is used to remove
respiratory secretions. Cardioversion is used in a planned setting for
atrial dysrhythmias. An ECG machine records tracings of the heart
for diagnostic purposes. Most clients with history of cardiac
disorders have an ECG completed.
◉ A client's electrocardiogram (ECG) tracing reveals a ventricular
rate between 250 and 400, with saw-toothed P waves. The nurse
correctly identifies this dysrhythmia as
A. Atrial fibrillation
, B. Ventricular tachycardia
C. Ventricular fibrillation
D. Atrial flutter Answer: D. Atrial flutter
The nurse correctly identifies the electrocardiogram (ECG) tracing
as atrial flutter. Atrial flutter occurs in the atrium and creates
impulses at a regular atrial rate between 250 and 400 times per
minute. The P waves are saw-toothed in appearance. Atrial
fibrillation causes a rapid, disorganized, and uncoordinated
twitching of atrial musculature. The atrial rate is 300 to 600, and the
ventricular rate is usually 120 to 200 in untreated atrial fibrillation.
There are no discernible P waves. Ventricular fibrillation is a rapid,
disorganized ventricular rhythm that causes ineffective quivering of
the ventricles. The ventricular rate is greater than 300 per minute
and extremely irregular, without a specific pattern. The QRS shape
and duration is irregular, undulating waves without recognizable
QRS complexes. Ventricular tachycardia is defined as three or more
PVCs in a row, occurring at a rate exceeding 100 beats per minute.
◉ The nurse analayzes the electrocardiogram (ECG) tracing of a
client newly admitted to the cardiac step-down unit with a diagnosis
of chest pain. Which finding indicates the need for follow-up?
