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WorksheetsEKG 25-26
Total questions: 29
Worksheet time: 15mins
Which does a stress test measure?
How efficiently blood moves through the heart and lungs.
How well exercise relieves a person's anxiety.
How the heart reacts to the increased need for oxygen during exercise.
How the brain reacts to situations that cause fear.
What is the purpose of the patient diary in Holter monitoring?
Inform the patient of what items to avoid during the test.
Supply a link to patient activity at the time of any abnormal results.
Remind the patient about heart-healthy behaviors.
Provide a place to document the results of the test.
How many electrodes does a Holter monitor have?
2
3
Up to 5
Up to 12
What does the assistant monitor for the patient throughout a stress test?
Vital signs
Oxygen saturation
Physical appearance
All of the Above
What should the assistant do after seeing an urgent problem on an ECG tracing?
Share the information with the patient right away.
Notify the physician right away.
Look in the patient's chart for an explanation.
All of the above.
What is the term for a heart rate of less than 60 beats per minute?
Sinus bradycardia
Atrial arrhythmia
Ventricular arrhythmia
Sinus tachycardia
What is the formula for calculating heart rate using the QRS complexes?
Calculate the average voltage of the QRS complexes.
Count the length of time between QRS complexes.
Count the height of the strongest QRS complex and divide by the length of time.
Count the number of QRS complexes in 6 seconds and multiply by 10.
Which of these arrhythmias will result in death without immediate treatment?
PAC
PVC
Ventricular Fibrillation
Atrial Fibrillation
What is the normal paper speed for an ECG tracing?
5 mm per second
10 mm per second
25 mm per second
50 mm per second
What type of ECG artifact is caused by muscle movement, such as shivering?
AC interference
Wandering baseline
Somatic tremor
Interrupted baseline
One small square on ECG tracing paper _______.
is 1 mm by 1 mm
represents 0.2 seconds
represents 0.04 seconds
is 2 mm by 2 mm
represents 0.1 mV
If ECG artifacts are seen on Leads I and II, what is the likely source of interference?
Left arm electrode
Left leg electrode
Right arm electrode
All of the above
When should the stylus move up on the paper 10 small squares and remain at that level for 2 small squares?
Standard calibration
One-half standardization
Double standardization
All of the above
Which part of an ECG machine moves against the tracing paper to record the waves of the ECG cycle?
Stylus
Electrodes
Amplifier
Galvanometer
The lines between which leads form Einthoven's triangle?
Augmented
Precordial
Standard
None of the above
Which of these items are placed on the patient's limbs and chest in an ECG to detect impulses?
Stylus
Galvanometer
Amplifier
Electrodes
Which limb electrode is used as a reference point and is not part of the ECG recording?
Right arm (RA)
Left arm (LA)
Right leg (RL)
Left leg (LL)
Where are the electrodes that precordial leads monitor placed?
Abdomen
Legs
Chest
Arms
After the first precordial electrode is placed, what is the correct order for the next three electrodes?
V2, then V3, then V4.
V3, then V2, then V4.
V2, then V4, then V3.
There is no recommended order.
Which chamber of the heart contracts to send oxygenated blood through the aortic valve and out to the body's cells?
Left atrium
Left ventricle
Right atrium
Right ventricle
Any condition that causes the heart to function abnormally is called what?
Heart attack
Cardiac arrest
Heart disease
Cardiac compromise
Which of these tissues is known as the body's "natural pacemaker?"
AV node
SA node
Purkinje fibers
Bundle of His
Which chamber of the heart receives oxygenated blood from the lungs?
Left atrium
Left ventricle
Right atrium
Right ventricle
What is the contraction phase of a heartbeat?
Impulse
Diastole
Cardiac
Systole
What is the leading cause of death in American adults?
Heart disease
Diabetes
Angina
Stroke
The stiffening of blood vessels due to fatty plaque buildup is called ____________.
acute coronary syndrome
atherosclerosis
myocardial ischemia
cardiac arrest
Which component of the ECG cycle shows ventricular depolarization?
V
QRS
T
P
A reduction in blood flow to the heart is called ____________.
cardiac arrest
myocardial ischemia
atherosclerosis
acute coronary syndrome
When does cardiac arrest occur?
When blood to the heart causes intense chest pains
When blood flow to the heart is blocked
When the heart stops beating unexpectedly
When the heart functions abnormally
