CCI CRAT Exam Practice Test 2|67 Questions with Verified Answers
When the technician is performing a 12 lead EKG, how many electrodes are used to
... [Show More] record the 12 views of the heart? - CORRECT ANSWER 10
When the technician is performing a 12 lead EKG, there would be 10 electrodes used to record the 12 leads or views of the heart. Twelve leads doesn't necessarily mean 12 electrodes.
Segments and waveforms on an ECG would include all but which of the following? - CORRECT ANSWER TB wave
Segments and waveforms on an ECG would include:PR interval QRS complexQT intervalP waveST segmentU waveT wave
The parasympathetic nervous system would do which of the following? - CORRECT ANSWER All of the above
The parasympathetic nervous system would:Slow the patient's heart rateEnhance digestionDecrease the patient's blood pressureIs mediated by acetylcholine
If the contact on a electrode is not conducting well or the placement is wrong, which of the following could occur? - CORRECT ANSWER Wandering baseline
If the contact on a electrode is not conducting well or the placement is wrong, it could cause a wandering baseline. The wandering baseline can also be caused by chest wall during respiration.
When interpreting a cardiac rhythm strip, all of the following would be considered steps except? - CORRECT ANSWER Determining the age of the patient
When interpreting a cardiac rhythm strip, there are 5 steps:
Examine all of the components and the shape of the waveforms.
Check the position of the P wave.
Determine if all the complexes are alike.
Determine the rate of the rhythm and if it is normal or abnormal.
Evaluate if the rhythm is regular or irregular.
Which of the following is the typical maximum length for a PR interval? - CORRECT ANSWER 0.20 seconds is the typical maximum length for PR interval. This of course can vary with heart rate from 0.12 to 0.20 seconds.
Which of the following artifact results from electrical equipment, mobile telephones, and electrical power lines? - CORRECT ANSWER Electromagnetic interference, also known as 60 cycle interference, is artifact caused by electrical equipment, mobile telephones, and electrical power lines. To minimize 60 cycle interference (or 60 Hz pickup), the technician should set the diagnostic mode of the 12-lead electrocardiogram monitor to 0.05-40 Hz. With the low frequency/high pass filter set to 0.05 the monitor should produce accurate ST-segments.
In the 1,500 method for calculating atrial rate, the technician should count which of the following? - CORRECT ANSWER Squares between two consecutive P waves
To calculate atrial rate with the 1,500 method, the technician would tally the little squares between two consecutive P waves and then divide 1,500 by that amount. There are 1,500 small squares in a one minute rhythm strip.
Which of the following would not be considered a patient area of education? - CORRECT ANSWER Providing financial counseling
There are 4 areas of patient education:
1.Restoration of health
2.Maintenance and promotion
3.Coping with new illness or impairment
4.Prevention of illness and injury
All of the following medications could cause bradycardia except? - CORRECT ANSWER NSAIDs
Bradycardia can be caused by the following medications:
Beta-adrenergic blockers
Digoxin
Calcium channel blockers
Lithium
Antiarrhythmics (sotalol, amiodarone, propafenone, and quinidine)
Generally, the chest leads are oriented through which of the following to project through the patient's back? - CORRECT ANSWER AV node
The chest leads should be oriented through the AV node to project through the patient's back, which is a negative charge to the leads positive charge. The plane of the chest leads is called the horizontal plane and it effectively separates the patient's body into top and bottom halves.
When setting up limb leads and placing them in equal distances from the heart, it is typically known as which of the following? - CORRECT ANSWER Einthoven's triangle
When setting up limb leads and placing them in equal distances from the heart, it is typically known at Einthoven's triangle. The leads will form a equilateral triangle with the right arm electrode being negative.
Standards of conduct or behavior as defined by your profession and place of employment are known as which of the following? - CORRECT ANSWER Code of ethics
A code of ethics is a set of standards of conduct or behavior as defined by a professional group. A healthcare professional must follow the code of ethics set forth by their place of employment and profession.
The left atria and which of the following would be considered a chamber of the human heart? - CORRECT ANSWER Right atria
The human heart consist of four chambers:
Left atria
Left ventricle
Right atria
Right ventricle
When evaluating pacemaker function, the evidence seen when viewing the cardiac tracing on the heart monitor is known as which of the following? - CORRECT ANSWER Electrical capture
When evaluating pacemaker function, the word capture is used to mean two different things. Electrical capture is the evidence we see when viewing the cardiac tracing on the heart monitor or ECG. Mechanical capture is the heart's ability to respond to the electrical impulses that are being delivered to the heart.
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When three or more PVC's happen in a row, it's considered which of the following? - CORRECT ANSWER Ventricular tachycardia
When three or more PVC's happen in a row, it's considered ventricular tachycardia.This type of arrhythmia can cause ventricular fibrillation.
Which of the following is the ECG equivalent of asystole? - CORRECT ANSWER Flat line
Patient education objectives could include all of the following except? - CORRECT ANSWER Decrease the patient's quality of care
Patient education objectives could include:
Prevention
Increasing patient satisfaction
Empowerment
Improving the outcome and/or health of the patient
Enhancing the quality of care
Reducing the risk of malpractice
Lower utilization of the healthcare services
When performing a 12 lead EKG on a patient using a portable machine, the technician sees a red line appearing at the bottom of the EKG paper. Which of the following would be considered the appropriate intervention for the technician to do? - CORRECT ANSWER Replace the EKG paper once the test is completed.
When performing an EKG, if there is a red line which appears on the bottom of the paper, it indicates that the machine is running out of paper. Typically there is enough paper left to complete the test, so it should be completed but the paper should be replaced before performing the next EKG.
Of the following, which person typically monitors and test a patient's cardiovascular performance using ECG equipment? - CORRECT ANSWER Electrocardiogram technician
The electrocardiogram technician (ECG technician) monitors and test a patient's cardiovascular performance using ECG equipment. The technician then provides this information to the physician for later analysis.
The ECG is considered to be one of the fastest and simplest ways to evaluate a patient's heart. Which of the following would be considered a good intervention after the ECG is recorded? - CORRECT ANSWER Compare to prior reading.
Always follow the policies and procedures for the facility for filing the ECG recording. Once the recording is completed, the technician should visually compare it to any prior recordings that have been done.
An irregular rhythm caused by an extra beat occurring before the regular beat is which of the following? - CORRECT ANSWER Premature junctional contraction
Premature junctional contraction (PJC) is an extra beat that causes the irregular rhythm because it happens before the regular beat. When the PJC produces these beats it depolarizes the atria in retrograde.
Which of the following happens when the ventricles are in diastole and the aortic valve is closed? - CORRECT ANSWER Coronary arteries fill
Coronary arteries fill when the ventricles are in diastole and the aortic valve is closed. At this point the aortic valve is no longer blocking the coronary ostium, so the blood can flow through it.
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In which of the following circumstances might sinus tachycardia be considered normal? - CORRECT ANSWER Both A and B
There are certain circumstances when sinus tachycardia might be considered normal. One of these is if the patient is highly stressed and another would be if the patient is exercising.
In a 12 lead ECG, which of the following is the number of limb leads there are? - CORRECT ANSWER 6
In a 12 lead ECG there are 3 bipolar limb leads and 3 unipolar limb leads.
According to OSHA standards, the use of which of the following is necessary in performing an ECG procedure safely? - CORRECT ANSWER All of the above
According to OSHA standards, technicians must follow the following guidelines while performing an ECG procedure:
Body mechanics- the use of movements that maintain proper posture and avoid muscle and bone injuries
Standard precautions- procedures like hand hygiene, wearing gloves, wearing gowns, etc that are employed with all patients and are in place to prevent the spread of infection
Isolation precautions- a second level of procedures that are employed to prevent the spread of infection when a specific infection is suspected or known. IE. Separating infected patients from others, personal protective equipment
A tract of tissue that extends into the ventricles next to the interventricular septum is known as which of the following? - CORRECT ANSWER His bundle
The His bundle is a tract of tissue that extends into the ventricles next to the interventricular septum and resumes the rapid conduction of the electrical impulse through the ventricles. The bundle eventually divides into the right and left bundle branches.
The heart's ability to stretch is known as which of the following? - CORRECT ANSWER Contractility
Contractility is the heart's ability to stretch. The ability of muscle cells to contract following depolarization is an example of the heart's contractility. Contractility depends on the amount the muscle fibers are stretched at the end of diastole.
If the EKG technician has extra training and can apply a Holter monitor for a patient, which of the following would be considered the first thing they should do? - CORRECT ANSWER Educate the patient
If an EKG technician has extra training and can apply a Holter monitor for a patient, they would educate the patient first. Once the education is completed, they should gather the equipment and prepare it, place the electrodes on the chest, and then hook the equipment up.
The most important action required for patient care in a medical facility is which of the following? - CORRECT ANSWER Communication
Communication is the most important action required for patient care in a medical facility. The patient must communicate with health care providers about their history, symptoms, medications, allergies, etc. The communication between health care providers is equally as important. Nurses, technicians, and physicians must properly communicate in order to provide appropriate care.
Lead 2 would be considered a combination of which of the following? - CORRECT ANSWER aVR and aVF
Lead 1 would be a combination of aVR and aVL.
Lead 2 would be considered a combination of aVR and aVF.
Lead 3 would be a combination of aVL and aVF.
One small box on the above graph paper that is used for cardiac rhythms would equal ______ seconds? - CORRECT ANSWER 0.04
One small box on the above graph paper that is used for cardiac rhythms would equal 0.04 seconds. 1500 small boxes would equal 60 seconds.
Of the following statements, which would not be considered correct regarding a pacemaker? - CORRECT ANSWER A pacemaker can only be external.
The following statements would be considered correct regarding a pacemaker:
A pacemaker can be internal or external.An internal pacemaker must be placed in surgery.
A pacemaker generates an impulse from a power source which is transmitted to the heart muscle.
In an emergency situation, a temporary pacemaker can be inserted at the bedside or ER.
Dyspnea would be best described as which of the following? - CORRECT ANSWER Shortness of breath
Cardiology is considered the study of the heart.
Pulmonary refers to the lungs
A sudden drop in the blood flow through a patient's body which causes the circulatory system to be unable to maintain an adequate blood flow would be considered shock.
Dyspnea is considered to be shortness of breath.
Artifact that occurs when the tracing drifts away from the center of the graph paper is known as which of the following? - CORRECT ANSWER Wandering baseline
Wandering baseline, or baseline shift, is artifact that happens when the tracing drifts away from the center of the graph paper. Wandering baseline can have multiple causes, most commonly improper electrode application.
Which of the following does the Q wave represent? - CORRECT ANSWER Initial negative pulse of ventricle depolarization
The Q wave represents the initial negative pulse of ventricle depolarization.This is the beginning of the QRS complex
When there is no electrical activity occurring or there is too little activity, the waveform resembles a straight line and is called which of the following? - CORRECT ANSWER Isoelectric waveform
An isoelectric waveform resembles a straight line. The ECG is not sensing proper electrical activity. The activity may be non-existent or just to weak to sense.
Of the following, which would be considered the appropriate term for an individual that helps the patient seek information and resources? - CORRECT ANSWER Patient advocate
A patient advocate would be considered an individual that helps the patient seek information and resources. This can be done either formally or informally. They also can help to resolve issues with the health-care system.
With an EKG, the voltage may be considered which of the following? - CORRECT ANSWER Negative
With an EKG, the voltage may be considered:
Positive
Negative
Isoelectric
When would sinus tachycardia not be considered normal for a patient? - CORRECT ANSWER When sleeping
Sinus tachycardia would be considered normal with the patient that is in the process of a stress test or exercising.Sinus tachycardia would have a rate of 100-150 beats per minute.
Leads I and AVL are called which of the following because each has a positive electrode positioned on the left arm? - CORRECT ANSWER Lateral leads
Leads I and AVL are called lateral leads due to both leads being positive electrodes located laterally on the left arm. Leads II, III, and AVF are called the inferior leads due to each of these leads having a positive electrode located inferiorly on the left foot.
The PR interval is measured on the ________ axis of the electrocardiogram? - CORRECT ANSWER Horizontal
The PR interval is measured on the horizontal axis of the electrocardiogram. The PR interval is normally measured from the start of the P wave until the start of the adjacent QRS interval. The PR interval tracks the atrial impulse from the atria through the AV node, bundle of His, and right and left bundle branches.
When assessing a rhythm strip for junctional tachycardia, the technician should look for a rate of which of the following? - CORRECT ANSWER 100-200 bpm
Junctional tachycardia has a rate of 100-200 bpm. The rhythm strip will show an inverted P wave that can occur prior to, during, or following the QRS complex.
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Which of the following pacemaker complications leads to the pacemaker sending current to the heart during relaxation phase? - CORRECT ANSWER Malsensing
Malsensing is when the pacemaker does not sense the patient's own intrinsic rate. The pacemaker might send current to the heart during repolarization (relaxation phase). This is known as pacemaker competition with the patient's own heart.
Once patient education is completed, which of the following would be considered the next step in the process? - CORRECT ANSWER Document
Once patient education is completed, the next step in the process would be documentation. If the education isn't documented, then legally, it wasn't done. Always take credit for your work, even if it took only a few minutes.
Prior to performing an ECG examination, the technician should do which of the following first? - CORRECT ANSWER Verify the physicians orders
The first step the ECG technician should take is to verify the physicians orders for the exam. The orders should be evaluated for any information about the patient that may be crucial knowledge for the exam such as if the patient has a pacemaker.
The space that is between two waves would be considered a ___________? - CORRECT ANSWER Segment
The space that is between two waves would be considered a segment. An example of a segment would be considered the PR segment that starts after the P wave and then ends at the beginning of the QRS complex.
If one idioventricular beat happens at a time, they are referred to as which of the following? - CORRECT ANSWER Ventricular Escape beat
If one idioventricular beat happens at a time, they are referred to as a ventricular escape beat.These appear late in the conduction cycle if the rate drops to 40 bpm or below.
The lateral leads would be considered which of the following? - CORRECT ANSWER I
The high lateral leads would be considered the following:
I
aVL
V5
V6
Which of the following causes the most cases of sudden cardiac death in people outside of a hospital? - CORRECT ANSWER Ventricular fibrillation
Ventricular fibrillation, also known as V-fib, causes the most cases of sudden cardiac death in people outside of a hospital. Ventricular fibrillation is an extremely chaotic form of electrical activity in the ventricles during which electrical impulses originate from numerous different foci. The lethal aspect of this arrhythmia is that it produces no effective muscular contraction and no cardiac output.
Prior to calling a physician, the ECG technician should be well prepared for any questions. All but which of the following would be correct for information they should know prior to calling? - CORRECT ANSWER The patient's insurance type
Prior to calling the physician, the ECG technician should be well prepared to answer questions.They should have information gathered such as:
Know the admitting diagnosis.
Have all information available prior to calling the physician.
Review the chart to determine the correct physician to call.
Assess the patientRead the most recent progress note.
Have these items available:
Allergies
Meds
IV fluids
Labs/results
Chart
Chest lead electrodes are always which of the following? - CORRECT ANSWER Positive
The electrodes for chest leads are always positive. Chest lead electrodes are positive and are positioned to go through the AV node to the patients back, which is negative.
An essential part of patient care that is a major HIPAA standard is which of the following? - CORRECT ANSWER Confidentiality
The Health Insurance Portability and Accountability Act (HIPAA) was formed to provide patients with security for their medical data. Confidentiality is an essential part of patient care and is a basic right of every patient. Patient information should not be made public or shared with anyone who is not responsible for the patients care.
If the physician prescribes in writing or in an electronic health record for a patient, it would be considered which of the following? - CORRECT ANSWER Physician orders
When physician prescribes in writing or in an electronic health record for a patient, it would be considered physician orders.These orders can also be written by the nurse or any party that has privileges to write these orders for the physician. This would always depend on the policies and procedures of each facility.
When evaluating a QRS complex the technician should concentrate on the duration and which of the following? - CORRECT ANSWER Configuration
Configuration and duration are the primary mechanisms to concentrate on when evaluating a QRS complex. A normal QRS complex has the following duration and configuration:
Duration-0.06 to 0.12 second or about half the PR Interval. Configuration-consists of the Q wave, the R wave, and the S wave. All three waves may not always be evident on the ECG
Ventricular depolarization begins at the lining of the ventricles and moves toward which of the following? - CORRECT ANSWER Epicardium
Ventricular depolarization begins at the lining of the ventricles and moves toward the outside surface, called the epicardium. The Purkinje fibers branch and subdivide just under the endocardial lining, however, they do no penetrate into the myocardium.
The T wave generally resembles which of the following on an ECG? - CORRECT ANSWER A short, broad hump
The T wave generally resembles a short, broad hump. It's shape aside, it represents the rapid phase of ventricular repolarization. Repolarization of the ventricles begins right after the QRS complex and persists until the end of the T wave.
Which of the following is required for the heart to pump? - CORRECT ANSWER All of the above
All of the following would be required for the heart to pump:
Electrical impulse
Automaticity
Excitability
Contractility
Conductivity
Of the following, which would be considered unipolar leads? - CORRECT ANSWER aVL
The unipolar leads would include:
aVL
aVR
aVF
Which of the following distinguishes atrial fibrillation on an EKG strip? - CORRECT ANSWER Irregular ventricular response and an absence of p waves
Irregular ventricular response and an absence of p waves distinguish atrial fibrillation on an EKG strip. The AV node will filter some of the impulses blocking them from the ventricles.
Which of the following might be considered the most common legal claim that could be brought against a healthcare provider? - CORRECT ANSWER Correct Answer:Negligence
The most common legal claim that could be brought against a healthcare provider would be considered negligence. This would be considered to be correct for when a person fails to use the degree of care that would be appropriate to the circumstances that results in an unintended injury to another.
In regards to a temporary pacemaker, which of the following would not be considered correct? - CORRECT ANSWER Is implanted into the patient's chest
In regards to a temporary pacemaker, the following would be considered correct:
Is powered by an alkaline batteryIs connected to lead wires which are inserted into the heart of the patientIs a small exterior box
A temporary pacemaker is typically placed during an emergency. This is a small exterior box which is powered by alkaline batteries. The lead wires are placed into the heart of the patient or can potentially be used with electrode pads that are placed on the patient's chest (sometimes not as effective).
Which of the following houses a battery, electronic circuitry for pacemaker settings, and a lead connector? - CORRECT ANSWER Pulse generator
The pulse generator is part of the pacemaker system that houses a battery, electronic circuitry for pacemaker settings, and a lead connector. The other part of a pacemaker system is the pacing lead.
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From the start of the QRS to the finishing of the T wave would be considered which of the following? - CORRECT ANSWER QT interval
From the start of the QRS to the finishing of the T wave would be considered the QT interval. The measurement would start where the Q wave first starts and then is finished when the T wave stops. This represents the ventricular activity.
On the rhythm strip, if there is a early beat showing randomly but most of the strip shows normal sinus rhythm, it is called which of the following? - CORRECT ANSWER PJC
On the rhythm strip if there is a early beat showing randomly but most of the strip shows normal sinus rhythm, it is called premature junctional contraction (PJC). This starts in the AV junction which is what normally acts as the pacemaker for the heart.
Of the following, which supplies the most blood to the SA node? - CORRECT ANSWER Right coronary arteries
The right coronary arteries supply approximately 60-70% of the blood to the SA node.
The SA node is supplied blood by the SA node artery which is supplied blood by the following coronary arteries:
The right coronary arteries (approximately 60-70%)
The left circumflex arteries (approximately 20-30%)
Of the following, which would be considered the most serious of the heart blocks? - CORRECT ANSWER Third degree
The third degree heart block (complete heart block) would be considered the most serious of all the heart blocks. It can be considered life threatening and can lead to cardiac arrest if not treated immediately. [Show Less]