ACLS Quiz 1

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  1. Electrical activity displayed on graph paper that is superimposed on cardiac tracings, interfering with interpretations of the rhythm; can be caused by outside electrical sources, muscle tremors, patient movement; also called interference

    2. Your answer:

  2. The absence of any cardiac electrical activity; appears as a straight line on graph paper

    3. Your answer:

  3. The cardiac arrhythmia in which the atria are controlled by numerous irritable foci, thereby causing ineffectual, chaotic atrial activity and irregular ventricular response

    4. Your answer:

  4. A cardiac arrhythmia originating from the conduction system within the atria

    5. Your answer:

  5. The upper two chambers of the heart

    6. Your answer:

  6. The cardiac arrhythmia in which a single irritable focus in the atria takes over control of the heart to produce a rate of 150-250 beats per minute; this arrhythmia is ofter paroxysmal in nature, that is, it starts and stops suddenly - in that instance it is call Paroxysmal Atrial Tachcardia (PAT)

    7. Your answer:

  7. The isolectric line; that line on EKG graph paper which indicates lack of electrical activity, and from which all other cardiac wave impulses deviate

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  8. A defect in conduction within the heart's electrical system

    9. Your answer:

  9. A single loading dose of a drug; used to achieve a rapid high therapeutic blood level prior to instituting IV drip therpy

    10. Your answer:

  10. Any cardiac arrhythmia with a rate below 60 beats per minute

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  11. The act of standardizing the graphic display of electrical activity; the calibration mark should measure 1 millivolt on the graph paper

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  12. The cessation of cardiac function, resulting in sudden drop in perfusion and resultant clinical death

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  13. A maneuver used to convert various tachyarrhythmias to more viable rhythms; consists of application of electrical countershock (DC current) to the chest wall; the electrical discharge is usually synchronized to fall on the R wave, thus avoiding the relative refractory period

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  14. The interval from the beginning of one heartbeat to the beginning of the next; on the EKG it emcompasses the PQRST complex

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  15. Chaotic, ineffective movement of the heart muscle

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  16. The usual cardiac electrical pattern of healthy people

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  17. The site of origin of the electrical stimulation that is causing the cardiac rhythm

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  18. The arrhythmia in which the pacemaker is located in the SA node but discharges irregularly, usually correlated with respirations; rate increases on inspiration and decreased on expiration

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  19. The arrhythmia in which the pacemaker is located in the SA node but discharges at a rate less than 60 beats per minute

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  20. The normal pacemaker of the heart; located at the junction of the superior vena cava and the right atrium; DA node, SinoAtrial node

    21. Your answer:

  21. Any rhythm that originates in the sinus (SA) Node; used loosely to refer to Normal Sinus Rhythm

    22. Your answer:

  22. The first wave form in the normal cardiac cycle; indicates atrial depolaration

    23. Your answer:

  23. The first upright deflection following the P wave, or the first positive wave of the QRS complex

    24. Your answer:

  24. The second negative deflection following the P wave, or the first negative deflection following the R wave

    25. Your answer:

  25. The arrhythmia in which the pacemaker is located in the SA node but discharges at a rate greater than 100 beats per minute

    26. Your answer:

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