Rules of EKG
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Tachycardia
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Fast heart rate
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Bradycardia
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Slow heart rate
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Systole
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Contraction of the heart
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In which direction should arm electrodes be pointed when attached to the patient in preparation for electrocardiography
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Down towards the feet
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On an electrocardiographic recording, five 5-mm boxes are seen between the R waves. What is the patient's heart rate in beats/min
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60
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If the electrocardiographic recording appears as a series of small uniform spikes in the baseline, the medical assistant should?
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Check for nearby appliances
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If the electrocardiographic recording appears with the baseline rising and falling, the medical assistant should?
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Check electrodes make sure there attached
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If the electrocardiographic recording appears as a series of irregular jagged peaks, the medical assistant should?
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Keep patient calm and comfortable
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A monitor that a patient wears for 24 hours is called
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Holter monitor
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In a standard 12-lead ECG, the measurement of current that the heart muscle produces between the right arm electrode and the left am electrode is known as
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Standard lead I
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The greatest deflection from the baseline on the ECG is the
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QRS
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Which deflection from the baseline represents the repolarization of the ventricles
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T wave
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What part of the electrocardiographic complex represents atrial depolarization
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P wave
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Relaxtion of the heart
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Diastole
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Controls the rate of heart contraction by initiating contractions 60 to 100 times/min
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Sa node
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Which statement is true about NSR?
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Regular heart rate that falls within the average range of 60 to 80 beats/min
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What reflects the time between the end of ventricular contraction and the beginning of ventricular recovery
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ST segment
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Which statement is true about the paper of the ECG?
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ECG paper is graph paper that has horizontal and vertical lines
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Leads usef two limbs to record the heart's electrical activity
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Standard
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Which statement is true about lead II
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Record on a cardiac monitor or on the rhythm strip
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To check the standardization of the electrocardiography machine the medical assistant depresses the standardization button. The stylus should deflect how many millineters
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10
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Preparation of a patient gor electrocardiography includes
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Remove belts, jewlery, socks, stocking or pantyhose
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A dairy of daily activities is part of the procedure for performing which of the following
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Holter monitor
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The image created on the paper of the ECG is made by the
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Stylus
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A patient with parkinson's disease may have which of the following artifacts
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Somatic tremor
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Which cardiac diagnostic tool requires the patient to exercise during the procedure
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Stress test
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Atrial flutter may occur if
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When the atria beat at an extremely rapid rate
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Which statement is not true about v-fib
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A person in v-fib cannot be stabalized
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Which of the following is seen on the electrocardiographic strip of a patient with an MI
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Elevated ST segments, inverted upside-down T waves, and abnormal pathologic Q waves
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Electron beam tomography helps screen for cardiac risk by
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Assessing the amount of the calcium on the coronary arteries
