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