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Electrocardiogram (ECG) Fundamentals, Exams of Cardiology

An overview of key concepts related to electrocardiograms (ecgs), including the interpretation of ecg waveforms, the use of ecg in cardiac monitoring and diagnosis, and the factors that can affect ecg readings. It covers topics such as the electrical activity of the heart, the role of heart valves, the significance of ecg waves and intervals, and the proper techniques for conducting ecg tests. The document also discusses the use of ecg in evaluating heart health, diagnosing cardiac conditions, and monitoring the effectiveness of treatments. Overall, this document offers a comprehensive introduction to the principles and applications of electrocardiography, which is a crucial tool in the field of cardiovascular medicine.

Typology: Exams

2024/2025

Available from 10/12/2024

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CCT CCI EXAM TEST BANK | CERTIFIED
CARDIOGRAPHIC TECHNICIAN EXAM |
QUESTIONS AND CORRECT ANSWERS
WITH EXPLANATIONS | ALREADY
GRADED A+ | LATEST VERSION |
VERIFIED ANSWERS
Which of the following would be the medical term used for a persons
breastbone?
-Clavicle
-Pelvis
-Sternum
-Femur ---------CORRECT ANSWER-----------------Sternum
The clavicle is also known as the collarbone
The pelvis in a human is the area that is between the abdomen and
the thighs
The femur is the thigh bone or the longest, thickest, and strongest
bone in the human body
Which of the following is considered to be the study of the human hearts
electrical conduction system?
-Contractility
-Electrophysiology
-Cardiology
-None of the above ---------CORRECT ANSWER-----------------
Electrophysiology
Contractility is one of the cardiac cell characteristics
Cardiology is the study of the heart
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CCT CCI EXAM TEST BANK | CERTIFIED

CARDIOGRAPHIC TECHNICIAN EXAM |

QUESTIONS AND CORRECT ANSWERS

WITH EXPLANATIONS | ALREADY

GRADED A+ | LATEST VERSION |

VERIFIED ANSWERS

Which of the following would be the medical term used for a persons breastbone?

  • Clavicle
  • Pelvis
  • Sternum
  • Femur ---------CORRECT ANSWER-----------------Sternum The clavicle is also known as the collarbone The pelvis in a human is the area that is between the abdomen and the thighs The femur is the thigh bone or the longest, thickest, and strongest bone in the human body Which of the following is considered to be the study of the human hearts electrical conduction system?
  • Contractility
  • Electrophysiology
  • Cardiology
  • None of the above ---------CORRECT ANSWER----------------- Electrophysiology Contractility is one of the cardiac cell characteristics Cardiology is the study of the heart

Electrophysiology is the study of the human hearts electrical conduction system Which of the following rhythms would not be considered life-threatening?

  • Ventricular tachycardia
  • First degree AV block
  • MAT
  • Ventricular fibrillation ---------CORRECT ANSWER-----------------First degree AV block The other 3 options above can be life-threatening. In most cases, first degree AV block requires no treatment at all and is not life- threatening Of the following, which is correct for the heart valve that is between the right ventricle and the pulmonary artery?
  • Pulmonary vein
  • Pulmonary artery
  • Pulmonary edema
  • Pulmonary valve ---------CORRECT ANSWER-----------------Pulmonary valve Pulmonary vein is the vein that carries oxygenated blood from the lungs back to the left side of the heart. The pulmonary artery connects the right ventricle to the lungs.Pulmonary edema is when there is a build-up of fluid in the lungs Of the following, which would be suggestions the ECG technician might tell a patient that could help prevent cardiovascular disease?
  • Increase their stress
  • Be more active

staff, providing a continuous display, and can also transmit a cardiac rhythm strip If the patient's atrial fibrillation rate is 90 beats per minute, it would be considered which of the following?

  • Uncontrolled atrial fibrillation
  • Normal rate atrial fibrillation
  • Controlled atrial fibrillation
  • Rapid atria fibrillation ---------CORRECT ANSWER-----------------Controlled atrial fibrillation With uncontrolled atrial fibrillation, the rate would be over 100 beats per minute With controlled atrial fibrillation, the rate would be less than 100 beats per minute The mean instantaneous vector would be considered which of the following?
  • Bipolar lead
  • Unipolar lead
  • Electrical axis
  • Focal point ---------CORRECT ANSWER-----------------Electrical axis The mean instantaneous vector would be considered the electrical axis. The electrical axis of the heart would be considered the direction of the electromotive force that is developed in the heart during activation If a P wave is negative, which of the following would more than likely be correct?
  • The P wave just does that sometimes
  • The wave has originated from an area other than the SA node
  • The P waves are never negative
  • The P waves are always negative ---------CORRECT ANSWER--------------- --The wave has originated from an area other than the SA node The inverted P wave is usually an ectopic atrial rhythm that originates from other than the SA node If the sinus nodes fails to regulate the heart rhythm, it is considered which of the following?
  • Septal defect
  • Idiopathic
  • SSS
  • Shunt ---------CORRECT ANSWER-----------------SSS Septal defect is a hole in the heart wall that separates the atria or the ventricle Idiopathic is no known cause Shunt is something that allows blood to flow between two locations SSS is sick sinus syndrome or when the sinus node fails (is sick) and cannot regulate the hearts rhythm ACLS stands for which of the following?
  • Advanced cardiac life support
  • Always cause life support
  • Advanced cardiac long life
  • All of the above ---------CORRECT ANSWER-----------------Advanced cardiac life support When doing skin preparation prior to performing an electrocardiogram, which of the following could be done?

A thick, gelled mass of blood is considered which of the following?

  • Blood pressure
  • Blood clot
  • Arterioles
  • None of the above ---------CORRECT ANSWER-----------------Blood clot Blood pressure is the force of pressure that is exerted by the heart when pumping blood Arterioles is the small branches of the arteries Blood clot is a thick, gelled mass of blood An ECG (electrocardiogram) can detect which of the following?
  • Evidence of hypertrophy of the heart muscle
  • The rate and rhythm mechanism of the heart
  • Evidence of impaired blood flow to the heart muscle
  • All of the above ---------CORRECT ANSWER-----------------All of the above In addition to the above, how the heart is placed in the chest cavity and damage to various sections of the heart muscle can be seen. An electrocardiogram can also show abnormal electrical activity that can cause the patient to experience abnormal cardiac rhythms The heart valve which separates the right atrium and the right ventricle is considered which of the following?
  • Coronary
  • Mitral valve
  • Anemia
  • Tricuspid valve ---------CORRECT ANSWER-----------------Tricuspid valve Coronary is relating to the heart Mitral valve separates the left atrium and the left ventricle Anemia is a deficiency in the oxygen-carrying material of the blood Tricuspid valve separates the right atrium and the right ventricle

If the cardiac arrest patient is assessed and the rhythm is not shockable, which of the following interventions should be done first?

  • Administer epinephrine
  • Begin CPR
  • Administer lidocaine
  • Shock the patient ---------CORRECT ANSWER-----------------Begin CPR When the patient is assessed and the rhythm is found unshockable, then the healthcare staff should begin CPR. After CPR is started, then ACLS should be continued as per the rhythm of the patient The positive electrode in lead II is placed in which position on the patient?
  • Right chest area
  • Left chest area
  • Left leg
  • None of the above ---------CORRECT ANSWER-----------------Left leg With a 12-lead ECG, the only two leads that provide a view of the anterior portion of the heart is which of the following?
  • Lead AVF
  • Lead V
  • Lead V
  • Both B and C ---------CORRECT ANSWER-----------------Both B and C The AVF lead provides a view of the inferior portion of the heart. The V3 and V4 leads provides a view of the anterior portion of the heart

Which of the following statements would not be correct related to ECG technician training?

  • They are sometimes trained on the job
  • They are never trained on the job
  • They typically require about 60 hours training
  • They are often people who already work in the health-care field --------- CORRECT ANSWER-----------------They are never trained on the job The ECG technician is often a person who already works in the health care field and are often trained on the job. If they are trained on the job, it typically last approximately 8 to 16 weeks. They usually undergo about 60 hours of training On a cardiac rhythm strip, which of the following can determine if the patient's heart rate is regular?
  • The RR intervals being equal
  • The PP intervals being equal
  • The RR intervals being unequal
  • Both A and B ---------CORRECT ANSWER-----------------Both A and B If the RR or PP intervals are not equal, then the rhythm is irregular. One of the most uncommon rhythms that is always unequal is atrial fibrillation A sudden drop in the blood flow through a patients body causing the circulatory system to be unable to maintain adequate blood flow is called which of the following?
  • Shortness of breath
  • Shock
  • Pulmonary
  • None of the above ---------CORRECT ANSWER-----------------Shock

Shortness of breath would be a difficulty in breathing, sometimes referred to as dyspnea Pulmonary refers to the lungs Shock is a sudden drop in the blood flow through a patients body, causing the circulatory system to be unable to maintain adequate blood flow The opening in the aorta that allows blood flow to the coronary arteries is called which of the following?

  • Pulmonic valve
  • Aortic valve
  • Coronary ostium
  • Right coronary artery ---------CORRECT ANSWER-----------------Coronary ostium The coronary arteries must be supplied with oxygenated blood. The coronary ostium is the opening that is located in the aorta that provides this function Which of the following on an ECG would be an indication that the patient would have a pacemaker?
  • Pacemaker spikes
  • PVC's
  • Peaked T waves
  • None of the above ---------CORRECT ANSWER-----------------Pacemaker spikes There are vertical signals which represents the electrical activity of the pacemaker. The pacemaker spikes are not as visible in bipolar pacing as unipolar pacing

Which of the following leads would help to record the electrical activity in the heart's horizontal plane?

  • Bipolar lead
  • 12 - lead ECG
  • Precordial leads
  • Unipolar leads ---------CORRECT ANSWER-----------------Precordial leads This provides a transverse view through the middle of the heart which divides it into upper and lower portions. Of the electrocardiogram waves, which would be considered the first deflection after the diastole that is produced because of the atrial depolarization?
  • T wave
  • S wave
  • Q wave
  • P wave ---------CORRECT ANSWER-----------------P wave This occurs because of the atrial depolarization of the heart. The Bundle of His has an intrinsic firing rate of which of the following?
  • 40 to 60 beats per minute
  • 30 to 60 beats per minute
  • 60 to 80 beats per minute
  • 80 to 100 beats per minute ---------CORRECT ANSWER----------------- 40 - 60 beats per minute The Bundle of His is located at the superior portion of the interventricular septum. The Bundle of His is actually the pathway of the electrical impulses that lead out of the SA node.

If a patient is experiencing a low blood pressure, which of the following terms would be correct?

  • Hyper tension
  • Hypoxemia
  • Hypotension
  • Hypoplastic ---------CORRECT ANSWER-----------------Hypotension Hypertension: high blood pressure Hypoxemia: low oxygen concentration in the blood Hypoplastic: when an organ is abnormally small because of a problem with development prior to birth Hypotension: low blood pressure The aVR lead picks up electrical activity from which of the following?
  • The center of the heart to the right arm
  • The center of the heart to the left leg
  • The center of the heart to the left arm
  • From the left arm to the left leg ---------CORRECT ANSWER----------------- The center of the heart to the right arm The center of the heart to the left leg: aVF The center of the heart to the left arm: aVL The center of the heart to the right arm: aVR From the left arm to the left leg: lead III The Q wave should have a duration of less than how many seconds?
  • 0.30 seconds
  • 0.20 seconds
  • 0.10 seconds
  • 0.04 seconds ---------CORRECT ANSWER-----------------0.04 seconds

Which of the following characteristics would a good ECG technician have?

  • They should be reliable
  • They should have mechanical aptitude
  • They should be able to follow directions
  • All of the above ---------CORRECT ANSWER-----------------All of the above Which of the following would be the main purpose of the heart valves?
  • The prevention of back-flow of blood
  • They assure that there is a uni-directional flow of blood through the heart
  • Both A and B
  • None of the above ---------CORRECT ANSWER-----------------Both A and B Which of the following would be considered correct regarding the grid paper that is used for an ECG?
  • The grid paper consist of horizontal lines
  • The grid paper is not heat sensitive
  • The grid paper consist of vertical lines
  • Both A and C ---------CORRECT ANSWER-----------------Both A and C The grid paper that is used for an ECG test: Consists of horizontal lines Consists of vertical lines Is heat sensitive Is used for cardiac monitoring and ECG's If a patient's heart becomes softened, it could cause changes in the electrocardiogram. Which of the following terms would be considered correct for a softening of the heart?
  • Cardiomegaly
  • Cardiopathy
  • Cardiomalacia
  • None of the above ---------CORRECT ANSWER----------------- Cardiomalacia Cardiomegaly is an enlarged heart Cardiopathy is any heart disease Cardiomalacia is a softening of the heart Potential causes of PVC's can be which of the following conditions?
  • Stimulants such as cocaine, coffee, nicotine or amphetamines
  • Increased catecholamines
  • Hypoxia
  • All of the above ---------CORRECT ANSWER-----------------All of the above Some of the causes would include: Stimulants such as cocaine, coffee, nicotine or amphetamines Increased catecholamines Hypoxia Heightened emotions AMI CHF Digitalis Increased vagal tones Acidosis Hypokalemia Hypomagnesemia Ischemia Open heart surgery Which of the following would be considered correct for the normal heart rate for the adult patient?
  • 100 - 160 beats per minute
  • 40 - 60 beats per minute
  • 120 - 150 beats per minute

Chronic treatment would be over a length of time. Acute treatment would be for sudden diagnosis. Prophylaxis would be treatment that would attempt to prevent something from occurring The leads V1-V6 view the heart from which of the following planes?

  • Vertical plane
  • Horizontal plane
  • Semi-vertical plane
  • None of the above ---------CORRECT ANSWER-----------------Horizontal plane The frontal leads I, II, III, aVR, and aVF view the heart from a vertical plane. Leads V1-V6 view the heart from a horizontal plane A patient's heart rate is typically taken where?
  • Radial
  • Apical
  • Femoral
  • Both A and B ---------CORRECT ANSWER-----------------Both A and B The heart rate can be taken femorally, but is not the typical choice for taking the heart rate. A patient's heart rate is typically taken: Radial, Apical Of the following, which would be the correct term for the air sacs in the lungs where the carbon dioxide and oxygen are exchanged?
  • Ablation
  • Aneurysm
  • Alveoli
  • Angina ---------CORRECT ANSWER-----------------Alveoli

Ablation is the elimination of something Aneurysm is a weakening and/or protrusion of a blood vessel or muscle Angina is pain caused by disease that constricts the blood flow to the vessels of the heart Alveoli are the air sacs in the lungs where the carbon dioxide and oxygen are exchanged Of the following, which would Quinidine be used to treat?

  • Paroxysmal supraventricular tachycardia
  • Premature ventricular contractions
  • Both A and B
  • None of the above ---------CORRECT ANSWER-----------------Both A and B Quinidine is often used to treat: Paroxysmal supraventricular tachycardia Premature ventricular contractions Atrial fibrillationAtrial flutter Of the following, which is not one of the hearts electrical conduction systems?
  • AV bundle
  • 9 volts
  • SA node
  • Purkinje fibers ---------CORRECT ANSWER-----------------9 volts This would be incorrect for one of the hearts electrical conduction system. The AV bundle, SA (sinoatrial) node, the AV (atrioventricular) node, the bundle branches, and the purkinjefibers are all part of the hearts system When preparing to perform an ECG, the technician should do which of the following when applying the electrodes?