EKG certification
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| The innermost layer of the heart is called the | Endocardium
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| Which of the following structures separates the right atrium and the right ventricle? | Tricuspid valve
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| Unipolar leads are also called | Augmented leads
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| The depolarization of which of the following heart cells is dependent on calcium? | Pacemaker cells
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| A record of the electrical activity of the heart is called | An electrocardiogram
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| In how many locations must you position electrodes for an ECG procedures? | 10
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| The ability of cardiac cells to receive and conduct an electrical stimulus is called | Conductivity
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| Another name for the cardiac pacemaker is | Sinoatrial node
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| How many precordial leads are there? | 6
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| Bipolar leads get their name from | Monitoring two electrodes
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| A positive or negative electrical state is called | Polarity
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| Precordial leads are also known as | Chest leads
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| To clean an electrode, you should use | Alcohol, warm water and steel wool
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| Which of the following standard electrocardiograph leads is used to record a rhythm strip? | II
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| Which of the following is a type of electrode? | Metal plate, suction bulb, and Disposable
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| Which of the following is a substance that enhances contact between the skin and the electrode? | Electrolyte
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| Which of the following is prevented by properly placing the leads before recording an electrocardiogram? | Artifacts
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| hich of the following pieces of medical equipment is used to reestablish the regular rhythm of the heart? | Defibrillator
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| Restoring the cardiac muscle cells to their original charge is called | Repolarization
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| Which of the following electrocardiograph leads records electrical activity from the midpoint between the left arm and left leg to the right arm? | III
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| Which of the following waves represents downward deflection? | an S wave or an Q wave
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| Which of the following is the first wave on an electrocardiogram? | The P wave
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| What is an Einthoven triangle? | An area defined by the right arm, left arm, and the left leg
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| Which of the following waves represents ventricular repolarization? | T wave
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| The right leg is | a ground
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| When attaching ECG wires, you should | attach the limb wires first then the chest leads
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| On an electrocardiogram, repolarization of the atria is represented by which of the following waves? | QRS complex
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| Electrocardiography is used to monitor the activity of the | Heart
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| How many limb leads are required for an ECG? | 6
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| Which of the following is an electrical ground in Einthoven’s triangle? | the right leg
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| Which of the following heart rhythms represents heart activity that is within acceptable limits? | Sinus rythem
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| Which of the following chest leads is placed in the fifth intercoststal space? | V2
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| How long does it take a Holter monitor to record the heart’s electrical activity? | 24 hours
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| If the line on the electrocardiogram is too dark, which of the following should be adjusted? | Stylus heat
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| The medical term for drooping of the heart at the normal location is called | Cardioptosis
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| Which of the following terms describes the contraction of the ventricles between 150 and 300 times per minute? | Ventricular flutter
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| In an ECG, the QRS complex represents | Ventricular contraction
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| Which of the following terms describes the contraction of the heart muscle? | Systole
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| Which of the following means surgical repair of the heart? | Cardioplasty
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| Cardiodynia is also called | Cardialgia
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| When the ventricles return to their polarized state, which of the following waves is recorded in the ECG? | T wave
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| Which interval represents the time it takes the ventricles to contract and recover? | Q-T
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| The amount of blood ejected by the left ventricle into the aorta in one minute is called | Cardiac output
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| Which medical term describes the rhythm of a dying heart? | Agonal rhythm
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| Which of the following terms refers to assessing the heart’s conduction system during exercise? | Stress Testing
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| Which of the following medical terms means the suturing of the heart muscle? | Cardiorrhaphy
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| Placement at the fourth intercostal space to the right of the sternum is | V-1
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| Which of the following parts of the heart is responsible for its contraction? | Myocardium
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| Which of the following leads are related to the right side of the heart? | V1, aVR
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| Rapid atrial contractions between 350 and 500 times per minutes is called | Atrial Flutter
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| Which of the following describes a medical condition in which every other beat of the heart is ectopic or premature? | Bigeminy
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| Which lead is placed at the fourth intercostal space at the left margin of the sternum? | V-4
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| Which of the following represents the time it takes an electrical impulse to travel from the SA node to the AV node? | The P-R interval
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| The P wave represents | Atrial contraction
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| The first group of leads to be recorded on an electrocardiogram is | standard limb leads I, II, and III are the first group of leads to be recorded
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| A heart rate slower than 60 beats per minute is called | Bradycardia
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| The location of the heart in the right thorax is known as | Dextrocardia
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