RMA chapter #20

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gailhart
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30768
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RMA chapter #20
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2010-08-22 13:29:01
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RMA CHapter
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reveiwing medical assistant
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  1. The medical term meaning transmission of ECG signals via radio waves is
    A. telepathy
    B. telemetry
    C. telediagnosis
    D. telocentric
    E. telecardio
    B
  2. On an ECG tracing, an indecation of the absence of electrical charge or activity represents
    A. sinoatrial node
    B. QRS complex
    C. baseline
    D. repolarization
    E. none of the above
    C
  3. A beat arising from a focus outside the heart is know as
    A. ectopic beat
    B. escape beat
    C. uncontrolled beat
    D. fusion beat
    E. bigeminy
    A
  4. Which of the following is the epicardium?
    A. heart muscle
    B. heart wall
    C. inner lining of the myocardium
    D. right atruim
    E. outermost layer of the heart
    E
  5. The sudden rush of blood pushed into the ventricles as a result of atrial contration is know as
    A. apec kick
    B. atrial kick
    C. acardia
    D. repolarization
    E. ventricular contration
    B
  6. The U wave represents
    A. repolarization
    B. depolarization
    C. baseline
    D. ectopic beat
    E. contraction
    A
  7. Which of the following is not necessary in administrating an ECG?
    A. sterilizing the leads
    B. activating the stardardization control
    C. washing the patient's skin
    D. selecting the speed
    E. both B and D
    A
  8. Which type id lead is lead III?
    A. bipolar limb lead
    B. unipolar (augmented) limb lead
    C. precordial lead
    D. intercestal lead
    E. none of the above
    A
  9. Which of the following is represented by the Q-T interval?
    A. low potassium in the blood
    B. one ventricular contraction and recovery (repolarization)
    C. the depolarization of the atria
    D. repolarization of the atria
    E. unusually frequent articular contraction due to high blood sugar
    B
  10. Leads aVR, aVL, and aVF are
    A. standard leads
    B. limb leads
    C. intercoastal leads
    D. augmented leads
    E. Both B and D
    E
  11. Sucessful depolarization if the atria or ventricles by an artificial pacemaker is called
    A. cardioplasty
    B. capture
    C. atrial kick
    D. apex kick
    E. none of the above
    B
  12. All of the following are causes of artifacts except
    A. a patient's talking
    B. clean sensors
    C. outside interference
    D. poor conduction
    E. improper handling of a tracing
    B
  13. Augmented leads are also called
    A. standard leads
    B. bipolar leads
    C. unipolar leads
    D. nonstandard leads
    E. none of the above
    C
  14. The QRS complex represents
    A. contraction of the atria
    B. recovery of the atria
    C. contraction of the heart
    D. recovery of the ventricles
    E. contaction of the ventricles
    E
  15. The coronary sinus empties into the
    A. left atruim
    B. right atruim
    C. left ventricle
    D. right ventricle
    E. both B and D
    B
  16. The medical term meaning a falling or drooping of the heart is
    A. cardioplegia
    B. cardiomyopathy
    C. cardiomyopexy
    D. cardioptosis
    E. cardiolith
    D
  17. Which of the following is the measurement of the atrial rate on the ECG tracing?
    A. the PR intercals
    B. the P waves
    C. the R waves
    D. the QRS complex
    E. none of the above
    B
  18. Lead II is a (n)
    A. chest or precordial leads
    B. bipolar limb lead
    C. augmented or unipolar limb lead
    D. intercoastal lead
    E. none of the above
    B
  19. The heart's conduction system is measured by which of the following?
    A. heart catheterization
    B. angiography
    C. exercise electrocardiography
    D. echocardiography
    E. action potential
    C
  20. Which of the patient's limbs serves as an electrical ground?
    A. right leg
    B. left leg
    C. right arm
    D. left arm
    E. either arm
    A
  21. Depolarization of fast cells is dependent on which of the following electrolytes?
    A. calcium
    B. potassiom
    C. magnesium
    D. chloride
    E. sodium
    E
  22. Which of the following devices may deliver a samll amount of electrical energy to cause myocardial depolarization?
    A. electrocardiography
    B. electronic pacemaker
    C. holter monitor
    D. treadmill
    E. oscilloscope
    B

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