Certified Cardiac Technician (CCT) Exam — Questions and Answers

Question 1: What does MET stand for in exercise physiology?

Maximum Exercise Tolerance
Measured Exertion Threshold
Myocardial Exercise Testing
Metabolic Equivalent of Task (Correct answer)

Correct answer: Metabolic Equivalent of Task

MET stands for Metabolic Equivalent of Task and represents the ratio of metabolic rate during an activity to the resting metabolic rate, where 1 MET equals approximately 3.5 mL O2/kg/min.

Question 2: The fossa ovalis is a remnant of which fetal cardiac structure?

Ductus venosus
Foramen ovale (Correct answer)
Umbilical vein
Ductus arteriosus

Correct answer: Foramen ovale

The fossa ovalis is a depression in the interatrial septum that represents the closed foramen ovale, a fetal shunt that allowed blood to bypass the lungs.

Question 3: Phase III cardiac rehabilitation is primarily characterized by which feature?

Pre-surgical cardiac conditioning
Maximal exercise stress testing only
Intensive inpatient monitoring and supervision
Independent, community-based exercise maintenance (Correct answer)

Correct answer: Independent, community-based exercise maintenance

Phase III cardiac rehabilitation is the long-term maintenance phase where patients apply independently the exercise habits and lifestyle changes learned during supervised Phases I and II in community settings.

Question 4: Epinephrine is given during cardiac arrest primarily because it:

Corrects metabolic acidosis
Increases coronary and cerebral perfusion pressure (Correct answer)
Restores normal sinus rhythm directly
Reduces oxygen demand

Correct answer: Increases coronary and cerebral perfusion pressure

Epinephrine is an alpha-adrenergic agonist that causes vasoconstriction, raising aortic diastolic pressure and improving coronary and cerebral perfusion during CPR.

Question 5: Which of the following best describes the correct action after identifying ventricular fibrillation on the monitor?

Apply vagal maneuvers to terminate the rhythm
Begin CPR and prepare for unsynchronized defibrillation (Correct answer)
Deliver a synchronized shock at 200 J
Administer amiodarone and reassess

Correct answer: Begin CPR and prepare for unsynchronized defibrillation

VF is a pulseless rhythm requiring immediate CPR and unsynchronized defibrillation; no R wave exists to synchronize a shock.

Question 6: What is the normal axis range for QRS complex in an adult ECG?

+90° to +180°
0° to +180°
-90° to -30°
-30° to +90° (Correct answer)

Correct answer: -30° to +90°

The normal QRS axis in adults ranges from -30° to +90°, reflecting the predominant leftward and inferior direction of ventricular depolarization.

Question 7: Which view in a transthoracic echocardiogram best visualizes all four cardiac chambers simultaneously?

Suprasternal view
Parasternal long-axis view
Apical four-chamber view (Correct answer)
Subcostal view

Correct answer: Apical four-chamber view

The apical four-chamber view positions the transducer at the cardiac apex, providing a simultaneous image of both atria and both ventricles for size and function comparison.

Question 8: Before performing a transthoracic echocardiogram, informed consent considerations require the CCT to:

Explain the procedure and ensure the ordering physician has obtained consent (Correct answer)
Skip consent since echocardiography is entirely non-invasive and risk-free
Obtain written signed consent since it is an invasive procedure
Have the patient sign a general hospital consent only

Correct answer: Explain the procedure and ensure the ordering physician has obtained consent

The CCT explains the procedure to the patient; formal consent responsibility lies with the ordering physician, though patient understanding must be confirmed.

Question 9: Which electrolyte imbalance can potentiate digoxin toxicity and increase the risk of fatal arrhythmias?

Hypercalcemia
Hypernatremia
Hypokalemia (Correct answer)
Hypermagnesemia

Correct answer: Hypokalemia

Low potassium levels increase digoxin binding to Na+/K+-ATPase, greatly increasing its toxic effects and the risk of dangerous arrhythmias.

Question 10: When administering IV potassium chloride for hypokalemia, the cardiac technician should be most concerned about:

Temperature of the solution
Infusion rate, as rapid administration can cause fatal arrhythmias (Correct answer)
Patient hunger level
Skin color changes

Correct answer: Infusion rate, as rapid administration can cause fatal arrhythmias

Rapid IV potassium administration can cause sudden hyperkalemia leading to fatal ventricular arrhythmias, so infusion rates must never exceed 10–20 mEq/hour.

Question 11: Which of the following best defines 'afterload' in cardiac physiology?

The volume of blood in the ventricle before contraction
The rate of venous return to the right heart
The resistance the ventricle must overcome to eject blood (Correct answer)
The intrinsic contractile strength of the myocardium

Correct answer: The resistance the ventricle must overcome to eject blood

Afterload is the resistance or wall stress that the ventricle must overcome during systole to eject blood, primarily determined by systemic vascular resistance for the left ventricle.

Question 12: What is the BEST way for a Certified Cardiac Technician professional to stay current with regulatory changes?

Rely solely on employer notifications
Check regulations only during renewal
Depend on colleagues to share updates
Monitor regulatory bodies, attend CE, and participate in professional associations (Correct answer)

Correct answer: Monitor regulatory bodies, attend CE, and participate in professional associations

Staying current requires monitoring agencies, attending CE, and participating in professional associations.

Question 13: A QRS complex that measures 0.14 seconds is best described as:

Normal duration
Critically shortened
Borderline prolonged
Prolonged, indicating bundle branch block (Correct answer)

Correct answer: Prolonged, indicating bundle branch block

A QRS duration ≥0.12 seconds (120 ms) indicates intraventricular conduction delay such as bundle branch block; 0.14 s is clearly prolonged.

Question 14: Electrical safety in the cardiac catheterization lab requires that all electrical equipment be:

Operated only by biomedical technicians, never by CCTs
Replaced annually regardless of functional status
Unplugged between cases to prevent leakage current
Grounded and inspected regularly according to biomedical engineering standards (Correct answer)

Correct answer: Grounded and inspected regularly according to biomedical engineering standards

Proper grounding and regular biomedical inspection prevent microshock hazards, which are especially dangerous for catheterized patients.

Question 15: What vessels supply blood to the heart muscle?

Jugular veins
Pulmonary veins
Coronary arteries (Correct answer)
Subclavian arteries

Correct answer: Coronary arteries

The heart muscle itself, known as the myocardium, requires a constant and rich supply of oxygen and nutrients to function continuously. This vital blood supply is delivered by the coronary arteries, which branch off the aorta near its origin. These arteries encircle the heart, providing blood to its various regions, and any blockage can lead to serious conditions like a heart attack.

Question 16: In left bundle branch block (LBBB), which lead shows a broad monophasic R wave without a septal Q wave?

Lead III
Lead aVR
Lead V6 (Correct answer)
Lead V1

Correct answer: Lead V6

In LBBB, lead V6 (and lateral leads I, aVL) shows a broad, notched, monophasic R wave with absence of the normal septal Q wave.

Question 17: Magnesium sulfate is the treatment of choice for which life-threatening arrhythmia?

Atrial fibrillation
Torsades de pointes (Correct answer)
Right bundle branch block
Sinus bradycardia

Correct answer: Torsades de pointes

Magnesium sulfate stabilizes the cardiac membrane and is the first-line treatment for torsades de pointes, a polymorphic ventricular tachycardia associated with prolonged QT.

Question 18: What is the primary goal of Phase I cardiac rehabilitation?

Early mobilization and patient education (Correct answer)
Surgical wound management
Weight loss and dietary counseling
High-intensity aerobic conditioning

Correct answer: Early mobilization and patient education

Phase I cardiac rehabilitation focuses on early mobilization to prevent deconditioning and patient/family education while the patient is still hospitalized.

Question 19: Which exercise modality forms the foundation of most cardiac rehabilitation programs?

High-intensity interval training
Resistance training only
Static flexibility and stretching
Continuous aerobic exercise such as walking and cycling (Correct answer)

Correct answer: Continuous aerobic exercise such as walking and cycling

Continuous aerobic exercise including walking, treadmill, and cycling is the cornerstone of cardiac rehabilitation due to its proven cardiovascular benefits and easily adjustable intensity.

Question 20: On a 12-lead ECG, which leads provide a view of the inferior wall of the left ventricle?

V3 and V4
II, III, and aVF (Correct answer)
V1 and V2
I, aVL, V5, V6

Correct answer: II, III, and aVF

Leads II, III, and aVF are oriented toward the inferior surface of the heart and display changes associated with inferior wall ischemia or infarction.

Question 21: Which patient identifier combination meets The Joint Commission's minimum standard for patient identification before a cardiac procedure?

Full name and date of birth (or medical record number) (Correct answer)
Insurance ID and home address
Room number and date of birth
Full name and physician's name

Correct answer: Full name and date of birth (or medical record number)

TJC requires two patient identifiers; acceptable pairs include full name plus date of birth or full name plus medical record number.

Question 22: What is the correct paper speed for a standard 12-lead ECG recording?

10 mm/sec
100 mm/sec
50 mm/sec
25 mm/sec (Correct answer)

Correct answer: 25 mm/sec

The standard ECG paper speed is 25 mm/sec, which allows accurate measurement of intervals and comparison across recordings.

Question 23: A patient experiencing a vasovagal reaction during an ECG reports feeling faint. The PRIORITY intervention is:

Administer epinephrine from the crash cart
Immediately administer atropine 0.5 mg IV
Increase IV fluid rate to maximum
Lower the head of the bed, elevate the legs, and call for assistance (Correct answer)

Correct answer: Lower the head of the bed, elevate the legs, and call for assistance

Trendelenburg-like positioning improves cerebral perfusion and is the first non-pharmacologic intervention for vasovagal syncope.

Question 24: Which valve prevents backflow of blood from the aorta into the left ventricle?

Tricuspid valve
Pulmonic semilunar valve
Aortic semilunar valve (Correct answer)
Mitral valve

Correct answer: Aortic semilunar valve

The aortic semilunar valve closes during diastole to prevent regurgitation of blood from the aorta back into the left ventricle.

Question 25: A patient being monitored post-cardiac catheterization develops sudden onset of hypotension, distended neck veins, and muffled heart sounds. The ECG shows low voltage and sinus tachycardia. The technician should suspect:

Aortic dissection
Cardiac tamponade (Correct answer)
Tension pneumothorax
Acute pulmonary embolism

Correct answer: Cardiac tamponade

Beck's triad (hypotension, JVD, muffled heart sounds) combined with low-voltage ECG after cardiac catheterization strongly suggests pericardial tamponade from procedural complication.

Question 26: What is the primary pacemaker of the heart under normal conditions?

Sinoatrial (SA) node (Correct answer)
AV node
Bundle of His
Purkinje fibers

Correct answer: Sinoatrial (SA) node

The SA node, located in the right atrium near the superior vena cava, spontaneously depolarizes at the fastest intrinsic rate (~60–100 bpm) and serves as the heart's primary pacemaker.

Question 27: When a patient on telemetry monitoring is being transported between units, the CCT should ensure:

The monitor is disconnected to prevent equipment damage during transit
A family member accompanies the patient in lieu of clinical staff
Continuous rhythm monitoring is maintained throughout the transport (Correct answer)
The telemetry unit is switched to a lower sensitivity to avoid alarms

Correct answer: Continuous rhythm monitoring is maintained throughout the transport

Uninterrupted monitoring during transport allows immediate detection of arrhythmias in a vulnerable patient population.

Question 28: What chamber of the heart receives oxygenated blood from the lungs?

Right atrium
Right ventricle
Left ventricle
Left atrium (Correct answer)

Correct answer: Left atrium

The left atrium is one of the heart's four chambers, specifically responsible for receiving oxygenated blood. This blood returns from the lungs via the pulmonary veins after being enriched with oxygen. From the left atrium, the oxygen-rich blood then flows into the left ventricle, ready to be pumped out to the rest of the body.

Question 29: Which category of cardiac rehabilitation patients requires continuous ECG monitoring throughout exercise sessions?

High-risk patients with complex arrhythmias or severely reduced ejection fraction (Correct answer)
Low-risk patients who had a single uncomplicated MI
Only patients with implanted pacemakers
All patients regardless of risk stratification

Correct answer: High-risk patients with complex arrhythmias or severely reduced ejection fraction

High-risk patients, including those with complex ventricular arrhythmias, ejection fraction below 35%, or hemodynamic instability, require continuous ECG monitoring during all exercise sessions.

Question 30: A patient on telemetry shows P waves that occur at a normal rate but none are followed by QRS complexes. What AV block is present?

Mobitz II second-degree AV block
First-degree AV block
Third-degree (complete) AV block (Correct answer)
Mobitz I second-degree AV block

Correct answer: Third-degree (complete) AV block

In complete (third-degree) AV block, no atrial impulses conduct to the ventricles; the atria and ventricles beat independently, so no P waves are followed by QRS complexes.

Question 31: What structure separates the left and right sides of the heart?

Septum (Correct answer)
Aorta
Mitral valve
Pulmonary valve

Correct answer: Septum

The septum is a muscular wall that effectively divides the heart into its left and right sides. This crucial structure prevents the mixing of oxygenated blood (on the left side) with deoxygenated blood (on the right side). By maintaining separate blood flows, the septum ensures the efficient circulation of blood throughout the body and to the lungs.

Question 32: Which risk management approach is MOST effective for CCT professionals when evaluating potential workplace hazards?

Reactive analysis after incidents occur
Proactive hazard identification and assessment (Correct answer)
Relying solely on historical accident data
Delegating all safety decisions to management

Correct answer: Proactive hazard identification and assessment

Proactive hazard identification and assessment allows professionals to identify and mitigate risks before incidents occur.

Question 33: Proper hand hygiene before and after patient contact should take at minimum:

5 seconds of vigorous rubbing
15-20 seconds with soap and water or the equivalent with alcohol-based gel (Correct answer)
60 seconds regardless of the hand hygiene product used
30 seconds only if the patient has a known infection

Correct answer: 15-20 seconds with soap and water or the equivalent with alcohol-based gel

CDC guidelines specify at least 15-20 seconds of hand washing or thorough alcohol-based sanitizer application to effectively reduce pathogen transmission.

Question 34: Which assessment method provides the MOST reliable data for CCT professionals making critical decisions?

Social media reviews
Standardized tools combined with professional observation (Correct answer)
Informal verbal feedback alone
Single-source data from one stakeholder

Correct answer: Standardized tools combined with professional observation

Combining standardized tools with professional observation provides the most comprehensive data.

Question 35: Which of the following best defines the J-point on the ECG?

The point where the PR segment meets the QRS complex
The midpoint of the T wave
The peak of the R wave
The junction between the end of the QRS complex and the beginning of the ST segment (Correct answer)

Correct answer: The junction between the end of the QRS complex and the beginning of the ST segment

The J-point marks the junction between the end of the QRS complex and the start of the ST segment, and is the reference for measuring ST elevation or depression.

Question 36: Which condition can cause electrical alternans on the ECG?

Cardiac tamponade (Correct answer)
Hypertrophic cardiomyopathy
Pulmonary embolism
Acute pericarditis

Correct answer: Cardiac tamponade

Electrical alternans — beat-to-beat alternation in QRS amplitude — is a classic ECG sign of cardiac tamponade due to the heart swinging within a large pericardial effusion.

Question 37: Starling's Law of the Heart states that stroke volume increases when:

Afterload increases
Sympathetic tone decreases
End-diastolic volume increases (Correct answer)
Heart rate decreases

Correct answer: End-diastolic volume increases

Frank-Starling's law states that within physiologic limits, increased ventricular filling (end-diastolic volume) stretches the myocardium and increases stroke volume due to enhanced actin-myosin overlap.

Question 38: How should you respond if a patient shows signs of ventricular fibrillation on the monitor?

Perform a routine check-up.
Begin defibrillation and CPR immediately (Correct answer)
Take the patient’s temperature.
Call a nurse and wait.

Correct answer: Begin defibrillation and CPR immediately

Ventricular fibrillation (VF) is a life-threatening cardiac arrhythmia where the ventricles quiver uselessly instead of pumping blood, leading to immediate cardiac arrest. In such a critical situation, immediate defibrillation is required to shock the heart back into a normal rhythm, along with continuous CPR to maintain blood flow until defibrillation can be performed or a stable rhythm is restored. Delaying these actions drastically reduces the patient's chances of survival.

Question 39: When assessment results for a Certified Cardiac Technician evaluation are inconclusive, the BEST practice is to:

Conduct additional assessment using alternative methods (Correct answer)
Report the results as definitive anyway
Delay reporting until results are favorable
Discard the results and start over

Correct answer: Conduct additional assessment using alternative methods

Inconclusive results require additional assessment using alternative methods for triangulation.

Question 40: What is the correct procedure when a patient's IV access is accidentally dislodged during cardiac monitoring?

Remove all monitoring leads immediately and call a code
Apply pressure to the site, notify the nurse, and document the event (Correct answer)
Ignore it since IV access is not needed for ECG monitoring
Attempt to reinsert the IV catheter yourself if trained

Correct answer: Apply pressure to the site, notify the nurse, and document the event

Applying pressure, notifying nursing staff, and documenting the event follows proper incident reporting and patient safety protocol.

Question 41: When a patient's transcutaneous pacemaker is capturing at 70 bpm but the patient's pulse is absent, the most appropriate next action is:

Increase the pacing rate to 100 bpm
Decrease the output milliamps and reassess
Document successful pacing and continue monitoring
Resume CPR immediately as pacemaker capture alone does not ensure perfusion (Correct answer)

Correct answer: Resume CPR immediately as pacemaker capture alone does not ensure perfusion

Electrical capture on the monitor does not guarantee mechanical contraction; the absence of a pulse means CPR must continue while the underlying cause is treated.

Question 42: When documenting assessment findings in CCT practice, which approach is MOST appropriate?

Use jargon only experts understand
Record objective findings, measurements, and observations factually (Correct answer)
Include only positive findings
Summarize verbally without written documentation

Correct answer: Record objective findings, measurements, and observations factually

Assessment documentation must be objective, factual, and comprehensive.

Question 43: During a stress echocardiogram, new wall motion abnormalities during exercise indicate:

Myocardial ischemia in the affected territory (Correct answer)
Pericarditis
Valvular regurgitation
Normal cardiac response

Correct answer: Myocardial ischemia in the affected territory

New regional wall motion abnormalities that appear during exercise stress echo indicate inadequate blood supply to that myocardial segment, consistent with ischemia.

Question 44: In Certified Cardiac Technician practice, what is the FIRST step when a safety hazard is identified in the workplace?

Wait for a supervisor to notice the issue
Document it for the next safety audit
Continue working and report at end of shift
Immediately secure the area and report the hazard (Correct answer)

Correct answer: Immediately secure the area and report the hazard

When a safety hazard is identified, the immediate priority is to secure the area to prevent injury and report the hazard through proper channels.

Question 45: What is the function of the pericardium?

Conducts electrical impulses
Produces blood cells
Pumps blood to lungs
Protects and anchors the heart (Correct answer)

Correct answer: Protects and anchors the heart

The pericardium is a double-layered sac that encloses the heart and the roots of the great vessels. Its primary functions include protecting the heart from infection and trauma, anchoring it within the chest cavity to prevent excessive movement, and providing lubrication to reduce friction during heartbeats. The fluid within the pericardial sac allows the heart to beat smoothly within its protective enclosure.

Question 46: In Certified Cardiac Technician practice, what is the CORRECT sequence when performing a technical procedure?

Execute, then plan and review
Execute immediately and document only if issues arise
Document, execute, then plan
Plan, prepare, execute, verify, and document (Correct answer)

Correct answer: Plan, prepare, execute, verify, and document

The correct sequence follows: plan, prepare, execute, verify, and document.

Question 47: When transferring a post-catheterization patient from the procedure table to a stretcher, the CCT should ensure the patient's femoral access site is:

Elevated above heart level to reduce bleeding
Covered with an occlusive dressing and ignored during transfer
Kept flat and observed for hematoma formation (Correct answer)
Compressed firmly with a sandbag for the transfer

Correct answer: Kept flat and observed for hematoma formation

Keeping the access site flat and monitoring for hematoma is critical immediately after arterial sheath removal.

Question 48: According to OSHA Bloodborne Pathogen Standards, used ECG electrode gel-coated electrodes should be disposed of in:

Regular trash if they are not visibly soiled with blood
A sharps container regardless of blood contact
The regular trash since ECG electrodes are single-use and non-sharp
A biohazard bag if they contacted intact skin during a routine ECG (Correct answer)

Correct answer: A biohazard bag if they contacted intact skin during a routine ECG

Electrodes that contact skin and potentially bodily fluids should be treated as potentially infectious and disposed of in biohazard waste.

Question 49: A CCT observes a patient's ECG with sudden onset of wide, bizarre QRS complexes at 180 bpm, with AV dissociation. What is the most likely rhythm?

Ventricular tachycardia (Correct answer)
Torsades de pointes
SVT with aberrant conduction
Accelerated idioventricular rhythm

Correct answer: Ventricular tachycardia

Ventricular tachycardia presents with wide, bizarre QRS complexes at ≥100 bpm and AV dissociation (independent P waves and QRS complexes) is a distinguishing feature.

Question 50: An ECG shows a ventricular rate of 150 bpm with a sawtooth baseline pattern and 2:1 conduction. What rhythm is present?

Atrial flutter with 2:1 block (Correct answer)
Sinus tachycardia
SVT with aberrant conduction
Atrial fibrillation

Correct answer: Atrial flutter with 2:1 block

Atrial flutter typically produces a sawtooth (flutter wave) pattern at approximately 300 bpm atrial rate; with 2:1 conduction, the ventricular rate is ~150 bpm.

Question 51: Which ECG change is most associated with digitalis (digoxin) toxicity?

Bidirectional ventricular tachycardia (Correct answer)
Tall peaked T waves
Prolonged QT interval >600 ms
ST segment elevation in multiple leads

Correct answer: Bidirectional ventricular tachycardia

Bidirectional ventricular tachycardia, where the QRS axis alternates beat-to-beat, is a classic and serious sign of digitalis toxicity.

Question 52: When assessment results for a Certified Cardiac Technician evaluation are inconclusive, the BEST practice is to:

Conduct additional assessment using alternative methods (Correct answer)
Report the results as definitive anyway
Delay reporting until results are favorable
Discard the results and start over

Correct answer: Conduct additional assessment using alternative methods

Inconclusive results require additional assessment using alternative methods for triangulation.

Question 53: What is the MOST important factor when selecting assessment tools for CCT certification work?

The cost of the assessment tool
Validity, reliability, and appropriateness for the specific context (Correct answer)
Personal familiarity with the tool
How quickly the tool can be administered

Correct answer: Validity, reliability, and appropriateness for the specific context

Assessment tools must be valid, reliable, and appropriate for the specific context.

Question 54: What should be done immediately after an accidental needle stick?

Tell a co-worker to report it later.
Ignore it and continue working.
Throw away the needle and forget it.
Wash the area, report it, and seek medical evaluation (Correct answer)

Correct answer: Wash the area, report it, and seek medical evaluation

An accidental needle stick poses a significant risk of transmitting bloodborne pathogens. Therefore, immediate action is vital: the area should be thoroughly washed with soap and water to minimize contamination. Following this, the incident must be reported to a supervisor, and the affected individual should seek prompt medical evaluation to assess the risk and determine if post-exposure prophylaxis is necessary, protecting their health and ensuring proper documentation.

Question 55: Venous blood from the majority of the myocardium drains into which structure?

Thebesian veins
Superior vena cava
Coronary sinus (Correct answer)
Anterior cardiac veins

Correct answer: Coronary sinus

The great, middle, and small cardiac veins converge into the coronary sinus, which runs in the posterior AV groove and empties into the right atrium.

Question 56: What is the primary purpose of applying conductive gel or electrode paste during ECG electrode placement?

To prevent skin burns from electrical current
To mark electrode placement sites for future reference
To cool the skin and reduce patient discomfort
To reduce skin-electrode impedance and improve signal quality (Correct answer)

Correct answer: To reduce skin-electrode impedance and improve signal quality

Conductive gel lowers the electrical impedance between the skin and the electrode, ensuring a clean, low-noise ECG signal.

Question 57: Which factor MOST significantly affects the quality of technical outcomes in CCT practice?

The time of day
Speed of procedure completion
The practitioner's training, preparation, and attention to detail (Correct answer)
The brand of equipment

Correct answer: The practitioner's training, preparation, and attention to detail

Quality depends primarily on training, preparation, and attention to detail.

Question 58: The Karvonen formula is used to calculate which exercise parameter?

Target heart rate during exercise (Correct answer)
Cardiac risk stratification score
Caloric expenditure per session
Maximum oxygen consumption (VO2 max)

Correct answer: Target heart rate during exercise

The Karvonen formula calculates target heart rate using heart rate reserve (maximum HR minus resting HR) multiplied by the desired intensity percentage, then adding resting HR.

Question 59: What electrode placement error causes the ECG to show inverted P waves and QRS complexes in lead I with a positive aVR?

Left leg and right leg lead reversal
Right arm and left leg reversal
V1 and V2 position swap
Left arm and right arm lead reversal (Correct answer)

Correct answer: Left arm and right arm lead reversal

Swapping the left arm (LA) and right arm (RA) electrodes causes lead I to be inverted and aVR to appear positive — the mirror image of normal.

Question 60: Which of the following is an ABSOLUTE contraindication to initiating cardiac rehabilitation exercise?

Atrial fibrillation with controlled ventricular rate
Unstable angina at rest (Correct answer)
Controlled hypertension
Mild stable angina

Correct answer: Unstable angina at rest

Unstable angina at rest is an absolute contraindication to exercise in cardiac rehabilitation because it indicates active myocardial ischemia that could worsen dangerously with exertion.

Question 61: A normal pulmonary capillary wedge pressure (PCWP) range during right heart catheterization is:

6–12 mmHg (Correct answer)
35–45 mmHg
20–30 mmHg
1–3 mmHg

Correct answer: 6–12 mmHg

PCWP of 6–12 mmHg reflects normal left atrial pressure; values above 18 mmHg indicate elevated left-sided filling pressure consistent with left heart failure or mitral disease.

Question 62: Wenckebach (Mobitz type I) second-degree AV block is characterized by:

Constant PR interval with random dropped beats
Alternating narrow and wide QRS complexes
Progressive PR prolongation until a QRS is dropped, then reset (Correct answer)
Complete dissociation between P waves and QRS complexes

Correct answer: Progressive PR prolongation until a QRS is dropped, then reset

Mobitz type I block shows progressive PR interval lengthening with each cycle until one P wave fails to conduct, after which the PR interval resets to its shortest value.

Question 63: Which action is most important when preparing a patient for a 12-lead ECG?

Use reusable electrodes
Apply lotion to the chest
Shave or clean the electrode sites (Correct answer)
Ensure the patient eats a meal

Correct answer: Shave or clean the electrode sites

Proper skin preparation is the most critical step when preparing a patient for a 12-lead ECG to ensure a high-quality tracing. Shaving excessive hair and thoroughly cleaning the skin with alcohol or abrasive gel removes dead skin cells, oils, and hair, which can impede electrical conduction. This meticulous preparation ensures optimal electrode contact and minimizes artifact, leading to a clear and accurate ECG recording.

Question 64: B-type natriuretic peptide (BNP) is elevated primarily in patients with:

Acute pericarditis
Heart failure with increased ventricular wall stress (Correct answer)
Stable coronary artery disease
Normal cardiac function

Correct answer: Heart failure with increased ventricular wall stress

BNP is released by ventricular myocytes in response to volume overload and increased wall tension, making it a sensitive marker of heart failure severity.

Question 65: Which equipment is essential for emergency cardiac response?

Defibrillator (Correct answer)
Otoscope.
Thermometer.
Glucometer.

Correct answer: Defibrillator

A defibrillator is essential equipment for emergency cardiac response because it delivers a controlled electrical shock to the heart. This shock can interrupt life-threatening arrhythmias such as ventricular fibrillation or pulseless ventricular tachycardia, allowing the heart's natural pacemaker to potentially resume a normal rhythm. Prompt defibrillation is a critical component of the chain of survival for sudden cardiac arrest.

Question 66: Which approach is MOST important for CCT professionals when applying technical procedures?

Using the fastest method regardless of standards
Adhering to established protocols while adapting to specific conditions (Correct answer)
Following personal shortcuts
Applying the same technique without variation

Correct answer: Adhering to established protocols while adapting to specific conditions

Technical procedures require adherence to protocols with professional judgment for adaptation.

Question 67: When documenting assessment findings in CCT practice, which approach is MOST appropriate?

Record objective findings, measurements, and observations factually (Correct answer)
Use jargon only experts understand
Include only positive findings
Summarize verbally without written documentation

Correct answer: Record objective findings, measurements, and observations factually

Assessment documentation must be objective, factual, and comprehensive.

Question 68: During continuous ECG monitoring, you observe a pause of 3.2 seconds with no P waves or QRS complexes. Which intervention is most immediately appropriate?

Prepare for synchronized cardioversion
Assess the patient and check lead connections (Correct answer)
Begin chest compressions
Administer atropine IV

Correct answer: Assess the patient and check lead connections

Before escalating treatment, the technician must first assess the patient's clinical status and verify that artifact or lead dislodgement is not causing the apparent pause.

Question 69: A patient's oxygen saturation drops to 88% during a pharmacological stress test. The FIRST intervention is:

Administer the reversal agent without physician authorization
Increase the dose of the pharmacological agent
Terminate the stress test and discharge the patient
Apply supplemental oxygen and notify the supervising physician (Correct answer)

Correct answer: Apply supplemental oxygen and notify the supervising physician

Supplemental oxygen and immediate physician notification address hypoxemia while keeping the care team informed for further decision-making.

Question 70: When a cardiac monitor shows 60-cycle interference artifact, the most appropriate corrective action is:

Switch to a different monitoring lead and increase the filter setting
Replace the entire monitoring cable set and reboot the monitor
Check and reattach electrode leads, ensuring good skin contact and proper electrode placement away from power sources (Correct answer)
Apply more electrode gel and increase monitor gain

Correct answer: Check and reattach electrode leads, ensuring good skin contact and proper electrode placement away from power sources

60-Hz AC interference is usually resolved by improving electrode skin contact, ensuring leads are not near electrical equipment, and verifying electrode placement.

Question 71: What rhythm requires immediate administration of epinephrine and CPR?

Atrial fibrillation.
Ventricular bigeminy.
Asystole (Correct answer)
Normal sinus rhythm.

Correct answer: Asystole

Asystole, often referred to as a 'flatline,' represents the complete absence of electrical activity in the heart, indicating cardiac arrest. This rhythm is not shockable; therefore, immediate administration of epinephrine, a potent vasoconstrictor, and continuous high-quality CPR are the primary interventions. These actions aim to stimulate any remaining electrical activity and maintain blood flow to vital organs, following advanced cardiac life support (ACLS) protocols.

Question 72: Which medication class most commonly blunts the heart rate response during exercise, requiring modification of target heart rate calculations in cardiac rehabilitation?

ACE inhibitors
Dihydropyridine calcium channel blockers
Beta-blockers (Correct answer)
Diuretics

Correct answer: Beta-blockers

Beta-blockers reduce chronotropic response by blocking adrenergic receptors, so exercise heart rate does not rise normally, requiring lower target HR ranges or RPE-based prescription instead.

Question 73: Which phase of the cardiac cycle is associated with the S2 heart sound?

Closure of the semilunar valves at the end of systole (Correct answer)
Opening of the semilunar valves
Rapid ventricular filling
Closure of the AV valves at the start of systole

Correct answer: Closure of the semilunar valves at the end of systole

S2 is produced by the closure of the aortic and pulmonic semilunar valves at the end of systole, marking the beginning of ventricular diastole.

Question 74: In Certified Cardiac Technician, what is the PRIMARY purpose of conducting an initial assessment?

To establish a baseline and identify needs for appropriate action (Correct answer)
To generate documentation for billing
To fulfill administrative requirements
To demonstrate the assessor's expertise

Correct answer: To establish a baseline and identify needs for appropriate action

The initial assessment establishes a baseline and identifies specific needs to guide subsequent decisions.

Question 75: How should Certified Cardiac Technician professionals handle procedures that have been updated or revised?

Continue using the original method
Only apply updates to new cases
Review updates, complete required training, and implement revised procedures (Correct answer)
Wait for mandatory enforcement

Correct answer: Review updates, complete required training, and implement revised procedures

Professionals must review changes, complete training, and implement revised procedures.

Question 76: Which medication is used to dissolve acute coronary thrombus during an ST-elevation MI when primary PCI is unavailable?

Metoprolol
Alteplase (tPA) (Correct answer)
Aspirin
Furosemide

Correct answer: Alteplase (tPA)

Alteplase is a thrombolytic agent that activates plasminogen to dissolve fibrin clots, restoring coronary artery perfusion when timely PCI is not possible.

Question 77: A patient with a pacemaker is scheduled for an ECG. The CCT should:

Perform the ECG and note pacemaker presence on the requisition (Correct answer)
Use half the standard electrode voltage to protect the device
Refuse to perform the ECG due to electrical interference risks
Skip limb leads and record precordial leads only

Correct answer: Perform the ECG and note pacemaker presence on the requisition

Standard 12-lead ECGs are safe for pacemaker patients; documenting pacemaker presence allows correct interpretation of paced rhythms.

Question 78: What is the PRIMARY benefit of completing cardiac rehabilitation after coronary artery bypass graft surgery?

Complete reversal of atherosclerosis
Prevention of all future cardiac events
Elimination of all cardiac medications
Improved exercise capacity and quality of life (Correct answer)

Correct answer: Improved exercise capacity and quality of life

Cardiac rehabilitation after CABG primarily improves exercise capacity, functional status, and quality of life, while also reducing risk factors and improving psychological outcomes.

Question 79: What does the term 'preload' refer to in cardiac physiology?

Ventricular wall tension at end-diastole (Correct answer)
The force of myocardial contractility
Heart rate times stroke volume
Arterial resistance opposing ventricular ejection

Correct answer: Ventricular wall tension at end-diastole

Preload refers to the ventricular wall tension (stretch) at end-diastole, which is determined by end-diastolic volume and reflects the degree of myocardial fiber stretch before contraction.

Question 80: Which personal protective equipment (PPE) principle applies to ALL CCT certified professionals regardless of their specific role?

PPE must be properly fitted, maintained, and replaced as needed (Correct answer)
Any PPE will provide adequate protection
PPE is optional if experienced in the field
PPE is only necessary during formal inspections

Correct answer: PPE must be properly fitted, maintained, and replaced as needed

Regardless of experience level, PPE must be properly fitted, regularly maintained, and replaced when worn or damaged.

Question 81: What is the BEST way for a Certified Cardiac Technician professional to stay current with regulatory changes?

Monitor regulatory bodies, attend CE, and participate in professional associations (Correct answer)
Rely solely on employer notifications
Depend on colleagues to share updates
Check regulations only during renewal

Correct answer: Monitor regulatory bodies, attend CE, and participate in professional associations

Staying current requires monitoring agencies, attending CE, and participating in professional associations.

Question 82: How should Certified Cardiac Technician professionals handle procedures that have been updated or revised?

Wait for mandatory enforcement
Review updates, complete required training, and implement revised procedures (Correct answer)
Only apply updates to new cases
Continue using the original method

Correct answer: Review updates, complete required training, and implement revised procedures

Professionals must review changes, complete training, and implement revised procedures.

Question 83: The chordae tendineae attach the AV valve leaflets to which cardiac structure?

Moderator band
Interventricular septum
Trabeculae carneae
Papillary muscles (Correct answer)

Correct answer: Papillary muscles

Chordae tendineae are fibrous cords that connect the AV valve leaflets to the papillary muscles, preventing valve prolapse during systole.

Question 84: Which factor MOST significantly affects the quality of technical outcomes in CCT practice?

Speed of procedure completion
The practitioner's training, preparation, and attention to detail (Correct answer)
The brand of equipment
The time of day

Correct answer: The practitioner's training, preparation, and attention to detail

Quality depends primarily on training, preparation, and attention to detail.

Question 85: Which blood pressure response during cardiac rehabilitation exercise should prompt IMMEDIATE cessation?

Systolic BP drop of >10 mmHg with increasing workload (Correct answer)
Heart rate increase of 20 bpm above resting
Respiratory rate increase to 18 breaths per minute
Oxygen saturation of 97%

Correct answer: Systolic BP drop of >10 mmHg with increasing workload

A systolic blood pressure drop of more than 10 mmHg with increasing exercise workload indicates exertional hypotension, reflecting inadequate cardiac output and requiring immediate cessation.

Question 86: Which coronary artery typically supplies the sinoatrial (SA) node in most individuals?

Diagonal branch
Left anterior descending artery
Right coronary artery (Correct answer)
Left circumflex artery

Correct answer: Right coronary artery

In approximately 60% of individuals, the SA nodal artery arises from the right coronary artery (RCA).

Question 87: A CCT notices the ECG shows a regularly irregular rhythm where the PR interval progressively lengthens until a QRS is dropped. What is this rhythm?

Mobitz II second-degree AV block
Mobitz I (Wenckebach) second-degree AV block (Correct answer)
First-degree AV block
Complete (third-degree) AV block

Correct answer: Mobitz I (Wenckebach) second-degree AV block

Mobitz I (Wenckebach) is characterized by progressive PR prolongation until a P wave fails to conduct and the QRS is dropped, then the cycle repeats.

Question 88: When a CCT professional encounters an unexpected result during a procedure, the FIRST action should be to:

Report without preliminary assessment
Stop, assess the situation, and determine whether to proceed or seek guidance (Correct answer)
Repeat the procedure immediately
Continue and address it later

Correct answer: Stop, assess the situation, and determine whether to proceed or seek guidance

Stopping to assess unexpected results is critical for safety and quality.

Question 89: Where does the heart's electrical impulse originate?

Sinoatrial node (Correct answer)
Purkinje fibers
Atrioventricular node
Bundle of His

Correct answer: Sinoatrial node

The heart's electrical impulse originates in the sinoatrial (SA) node, often referred to as the heart's natural pacemaker. Located in the upper part of the right atrium, the SA node spontaneously generates electrical signals that initiate each heartbeat. These impulses then spread throughout the atria and ventricles, coordinating the rhythmic contraction and relaxation of the heart muscle.

Question 90: What is the appropriate response if a CCT observes a colleague failing to perform hand hygiene before patient contact?

Privately remind the colleague of the hand hygiene protocol (Correct answer)
Document the incident and file a formal complaint
Ignore it to avoid workplace conflict
Immediately report the colleague to administration for disciplinary action

Correct answer: Privately remind the colleague of the hand hygiene protocol

A private, respectful reminder is the most effective first step and aligns with a just culture approach to patient safety improvement.

Question 91: In Certified Cardiac Technician practice, what is the CORRECT sequence when performing a technical procedure?

Plan, prepare, execute, verify, and document (Correct answer)
Execute, then plan and review
Execute immediately and document only if issues arise
Document, execute, then plan

Correct answer: Plan, prepare, execute, verify, and document

The correct sequence follows: plan, prepare, execute, verify, and document.

Question 92: A CCT records an ECG showing a heart rate of 40 bpm with narrow QRS complexes and no identifiable P waves. What rhythm is most likely?

Idioventricular rhythm
Sinus bradycardia
Junctional escape rhythm (Correct answer)
Second-degree AV block Mobitz I

Correct answer: Junctional escape rhythm

A junctional escape rhythm typically produces a rate of 40–60 bpm with narrow QRS complexes and absent, retrograde, or buried P waves.

Question 93: What is the approximate normal ejection fraction of the left ventricle?

55–70% (Correct answer)
40–55%
25–35%
75–90%

Correct answer: 55–70%

Normal left ventricular ejection fraction (LVEF) is 55–70%, representing the percentage of end-diastolic volume ejected with each beat.

Question 94: What does a negative QRS deflection in lead I combined with a positive QRS in lead aVF indicate about the cardiac axis?

Right axis deviation (Correct answer)
Left axis deviation
Normal axis
Extreme axis deviation

Correct answer: Right axis deviation

A negative QRS in lead I and positive QRS in aVF places the electrical axis in the right axis deviation range (between +90° and +180°).

Question 95: What is HIPAA designed to protect?

Hospital budgets.
Doctor's reputation.
Insurance premiums.
Patient's personal and health information (Correct answer)

Correct answer: Patient's personal and health information

HIPAA, the Health Insurance Portability and Accountability Act, is a federal law specifically designed to protect the privacy and security of a patient's personal and health information. It establishes national standards for the electronic healthcare transactions and mandates safeguards for protected health information (PHI). This ensures patient confidentiality, builds trust in the healthcare system, and prevents unauthorized disclosure of sensitive data.

Question 96: Which part of the ECG corresponds to ventricular depolarization?

U wave
QRS complex (Correct answer)
P wave
T wave

Correct answer: QRS complex

The QRS complex on an ECG represents ventricular depolarization, which is the electrical activation of the ventricles. This electrical event triggers the contraction of the ventricles, leading to the ejection of blood from the heart into the pulmonary artery and aorta. It is typically the largest and most prominent wave complex on the ECG due to the significant muscle mass of the ventricles.

Question 97: A CCT accidentally sticks themselves with a needle used on a patient with unknown HIV status. The FIRST action should be:

Continue working and report only if symptoms develop
Immediately wash the wound, report to supervisory staff, and follow exposure protocol (Correct answer)
Self-administer post-exposure prophylaxis from the crash cart
Wait until end of shift and report to occupational health

Correct answer: Immediately wash the wound, report to supervisory staff, and follow exposure protocol

Immediate wound care, prompt reporting, and following facility exposure protocol are critical to minimize infection risk and begin prophylaxis within the optimal window.

Question 98: Which of the following is the reversal agent for warfarin anticoagulation in an emergency?

Protamine sulfate
Flumazenil
Naloxone
Vitamin K and fresh frozen plasma (FFP) (Correct answer)

Correct answer: Vitamin K and fresh frozen plasma (FFP)

Vitamin K restores clotting factor synthesis and FFP provides immediate clotting factors to rapidly reverse warfarin anticoagulation.

Question 99: Which lead configuration is most commonly used in continuous monitoring?

Lead I
Lead III
aVR
Lead II (Correct answer)

Correct answer: Lead II

Lead II is the most commonly utilized lead configuration for continuous cardiac monitoring due to its optimal view of the heart's electrical activity. It typically provides the clearest and largest P waves and QRS complexes, making it easier to identify and analyze cardiac rhythms and detect arrhythmias. This clarity is crucial for accurate real-time assessment of heart function and prompt intervention if needed.

Question 100: Which ECG finding is most consistent with acute pericarditis?

Diffuse concave (saddle-shaped) ST elevation in multiple leads with PR depression (Correct answer)
ST elevation in a single coronary territory with reciprocal changes
New LBBB pattern
Wellens' syndrome T-wave changes in V2-V3

Correct answer: Diffuse concave (saddle-shaped) ST elevation in multiple leads with PR depression

Acute pericarditis classically shows diffuse, concave (saddle-shaped) ST elevation in nearly all leads with PR segment depression, reflecting global pericardial inflammation.

Certified Cardiac Technician (CCT) Exam

The CCT certification validates the knowledge and skills required to perform electrocardiograms (ECGs) and assist with other cardiac diagnostic procedures.

100

Questions

120 min

Time Limit

70%

To Pass

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