WorksheetsChapters 6, 7, & 8 ECG Quiz
Total questions: 50
Worksheet time: 25mins
Which of the following is a function of an ECG?
To measure cardiac muscle hypertrophy
To identify cardiac output
To measure the mechanical contraction of the heart
To detect previous myocardial events
What is the purpose of the grounding electrode?
To capture any heart irregularities
To capture any arrhythmias
To measure heart muscle activity
To reduce electrical interference from outside of the body
The electrode for what lead is placed on the right side of the sternum at the 4th intercostal space?
Lead V3
Lead V4
Lead V1
Lead V2
What is the universal precordial lead color for the electrode placed in the 5th intercostal space at the mid-axillary line?
Orange
Red
Yellow
Purple
The first three limb leads are identified as Lead I, Lead II, and Lead III and are all what type of leads?
Augmented
Bipolar
Ground
Unipolar
Which of the following can be made of foam, cloth, or wet gel and come in various sizes from neonate, infant, pediatric, and adult?
Electrodes
Leads
Cables
Clips
Why are ECG electrodes attached to the skin?
To help with the conduction of the sound
To measure heart muscle activity
To transfer the sound
To capture any patient events
On an ECG, what measures the direction and intensity of voltage being discharged by the heart at a specific time?
Leads
Clips
Cables
Electrodes
Leads v4, v5, and v6 may be moved to the posterior axillary line thru the paraspinal line (v7, v8, v9) if the physician wants an alternate heart view based on suspected damage in what part of the heart?
Posterior
Right atria
Right ventricle
Anterior
In placing precordial leads, be sure to affix all the electrodes on the left side of the sternum with the exception of which lead?
V1
V2
V3
V4
Precordial leads v2-v6 may be moved to the right side of the sternum if the physician wants an alternate heart view based on suspected damage in what part of the heart?
Posterior
Right ventricle
Left ventricle
Anterior
On a normal ECG, the electrical current in Leads I, II, and III are all moving in what direction?
Upward
Left
Downward
Right
Which of the following means that the health care practitioner has discussed the procedure, the risks, and the benefits of the ECG and allowed the patient to clarify any questions?
Implied consent
Necessary consent
Informed consent
Legal consent
What is the only lead where it is acceptable to place the electrode over a bone?
Lead V3
Lead V2
Lead V4
Lead V1
According to the North American limb lead color code, what color is used for the left leg (LL)?
Red
White
Green
Black
When would informed consent occur?
After performing the procedure and while explaining the next steps to the patient
When the patient cannot provide written consent
In any non-emergency clinical situation
In a medical emergency
What type of leads provide three views from a central point of the heart but only two of the views are of a heart wall?
Modified leads
Augmented leads
Standard limb leads
Precordial leads
Which of the following occurs during a normal PR segment?
Deflection
Atrial fibrillation
Atrial depolarization
Atrial tachycardia
When there is no electrical activity occurring within the heart, the ECG strip will show as a solid flat line called the ________.
isoelectric line
waveform
depolarization loop
missing wave
Which of the following precordial lead errors does this ECG tracing represent?
Reversal of V1 and V6
Reversal of V1 and V2
Reversal of right arm and right leg leads
Both arms and legs limb leads reversed
What type of waveforms cross the isoelectric line with part of the waveform being upright and part of the waveform appears as inverted?
Fluttered
Notched
Fibrillated
Biphasic
Which of the following is calculated by using the horizontal axis on an ECG strip?
Amplitude
Heart phases
Heart rate
Heart rhythm
The measurement of a wave starts when the wave departs the ___________.
baseline
isoelectric line
vertical axis
horizontal axis
When the heart rhythm or heart rate is consistently or predictably irregular or abnormal, or absent, it is known as a(n) ___________.
arrhythmia
sinus rhythm
atrial systole
ventricular systole
During what segment will the atria and ventricles be relaxed, which means the heart is in a diastolic state?
PRI interval
TP segment
PR segment
ST segment
Calculate the heart rate for the ECG tracing below.
60 bpm
85 bpm
115 bpm
150 bpm
__________ is the strength or magnitude of the action potential.
Duration
Repolarization
Amplitude
Conduction
Stress, exercise, general health, previous cardiac events, even sleeping can all alter the heart rate. What type of heart rate does the ECG tracing in the figure below represent?
Normal sinus rhythm
Tachycardia
Bradycardia
Atrial fibrillation
When the sinoatrial node begins the electrical impulse, which of the following waves is created on the grid as both the right and left atria are depolarized?
R wave
Q wave
P wave
S wave
Which of the following is defined as a measurable, regularly recurring, impulse of the heart?
Heart contractility
Arrhythmia
Heart rhythm
Heart phases
The ventricular relaxation phase that is represented by the T wave is also called _________.
ventricular diastole
ventricular depolarization
atrial systole
ventricular systole
Which of the following shows up on an ECG tracing as a curved or spiked line either above or below the isoelectric line?
Complex
Wave
Interval
Segment
Another term for baseline is ________ line.
isoelectric
reference
neutral
zero
A(n) ________ on the ECG strip is a “time period” with no electrical activity occurring between waves, and if normal, looks like a flat line.
artifact
deflection
interval
segment
What heart condition do the waves in the ECG tracing below represent?
Atrial Flutter
Junctional Arrhythmia
Atrial Fibrillation
Atrial Tachycardia
Which of the following cardiac medications would be given if the indication is an acute coronary syndrome?
Dopamine
Lidocaine
Vasopressin
Nitroglycerin
The primary difference between the sinus tachycardia and atrial tachycardia is found in the appearance of which of the following ECG tracings?
ST segment
P wave
R wave
T wave
What heart condition do the waves in the ECG tracing below represent?
Junctional Arrhythmia
Atrial tachycardia
Atrial flutter
Atrial fibrillation
What type of heart rates occur more commonly in infants, children, and young adults who are anxious or extremely fatigued?
Ventricular asystole
Supraventricular tachycardia
Ventricular fibrillation
Idioventricular rhythm
Which of the following is the absence of any ventricular activity, no depolarization, no pulse, no blood is flowing through the heart, no cardiac output?
Ventricular asystole
Ventricular tachycardia
Ventricular fibrillation
Ventricular arrhythmia
Which medication may be given to correct a bradycardic rhythm?
amiodarone
nitroglycerine
atropine
lidocaine
What type of pacemaker ECG reading does the tracing below represent?
Atrial Pacing
Ventricular Pacing
Dual Chamber Pacing
Biventricular Pacing
__________ is defined as a decrease in oxygenated blood flow to the heart muscle.
Atrial arrhythmia
Myocardial infarction
Necrosis
Ischemia
In a pacemaker ECG, if a spike appears by itself with no P wave and no QRS complex, it is called a(n) __________.
Over sensing
Loss of capture
Failure to pace
Under Sensing
Blockage of one or more coronary arteries that supply blood to the left ventricle is usually the cause of which of the following?
Ventricular fibrillation
Aneurysm
Acute myocardial infarction
Sudden cardiac arrest
The ECG tracing below shows P prime (P’) wave presentations for what type of rhythm?
Normal sinus rhythm
Junctional tachycardia rhythm
Ventricular tachycardia rhythm
Sinus tachycardia rhythm
Failure of the heart to pump oxygenated blood efficiently causing cardiopulmonary arrest, is an example of what type of cardiac compromise?
Mechanical malfunction
Coronary artery disease
Electrical malfunction
Injury
Which of the following cardiac medications would be given if the indication is bradycardia?
Nitroglycerin
Adenosine
Atropine
Amiodarone
Which of the following conditions is where the heart muscle cannot contract even though electrical activity appears on the ECG?
Pulseless electrical activity
Idioventricular rhythm
Ventricular fibrillation
Premature ventricular complex
When medication no longer controls tachycardia, which of the following may be implanted into the patient to control these life-threatening arrhythmias?
Synchronous pacemaker
Implantable cardioverter defibrillator
Transcutaneous pacemaker
Asynchronous pacemaker
