ECG

20 Questions | Total Attempts: 471

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ECG Quizzes & Trivia

ECG Questions


Questions and Answers
  • 1. 
    The inspiratory reserve volume:We observe in case of normal breathing
    • A. 

      We observe in case of normal breathing

    • B. 

      Depends on the actual needs of oxygen

    • C. 

      Is the maximum volume of the air we can breath in over the expiratory reserve and tidal volume

  • 2. 
    QRS-complex has its origin in
    • A. 

      Repolarization of ventricles

    • B. 

      Depolarization of atria

    • C. 

      Depolarization of ventricles

  • 3. 
    The delay of the contraction of ventricles after the contraction of atria is cause by the delay in
    • A. 

      AV node

    • B. 

      SA node

    • C. 

      Septum

  • 4. 
    The IRV is 4.20 l and the TV is 0.46 l
    • A. 

      The IVC is 4.66 l

    • B. 

      The IC is 4.66 l

    • C. 

      The IVC is 3,74 l

  • 5. 
    Lead III is measured between:
    • A. 

      Left and right wrist

    • B. 

      Right wrist and left ankle

    • C. 

      Left wrist and left ankle

    • D. 

      Left wrist and right ankle

  • 6. 
     P-Q Segment has its origin in
    • A. 

      Repolarization of ventricles

    • B. 

      Plato phase of ventricles

    • C. 

      Delay in AV node

  • 7. 
    T-wave has its origin in
    • A. 

      Repolarization of ventricles

    • B. 

      Repolarization of atria

    • C. 

      Depolarization of ventricles

  • 8. 
    The only way the action potential may go from atria to ventricles is
    • A. 

      The valves of the heart

    • B. 

      Bundle of His

    • C. 

      Skeleton of the heart

  • 9. 
    • A. 

      Black

    • B. 

      Red

    • C. 

      Yellow

    • D. 

      White

    • E. 

      Green

  • 10. 
    The 3 bipolar leads are connected to
    • A. 

      Above left ankle, above right ankle, chest

    • B. 

      Left wrist, right wrist, above left ankle xx

    • C. 

      Left wrist, right wrist, above left ankle xx

  • 11. 
    Two adjacent Q peaks are 600 ms apart. Calculate the heart rate.
    • A. 

      100 beats per sec

    • B. 

      60 beats per sec.

    • C. 

      80 beats per sec.

    • D. 

      No answer is correct

  • 12. 
    The angle of mean electrical axis of heart is 120 degrees. The entire amplitude of QRS complex in the I. lead is:
    • A. 

      Zero

    • B. 

      Negative

    • C. 

      Positive

    • D. 

      1 mV

  • 13. 
    Calculate the mean blood pressure when the systolic blood pressure is SBP = 16 kPa and the diastolic blood pressure is DBP = 10 kPa.
    • A. 

      12kPa

    • B. 

      26kPa

    • C. 

      13kPa

  • 14. 
    Determine the angle of the electric axis of the heart if you know that the entire amplitudes (Q+R+S) of leads II and III are the same and positive.
    • A. 

      45˚

    • B. 

      90˚

    • C. 

      60˚

  • 15. 
    The mean pressure (MBP) is calculated from the diastolic blood pressure (DBP) and systolic blood pressure (SBP) by the formula
    • A. 

      MBP= DBP+(SBP-DBP) / 3

    • B. 

      MBP = (DBP+SBP) / 2

    • C. 

      MBP = DBP+(SBP-DBP) / 2

  • 16. 
    The expiratory reserve volume: B also correct
    • A. 

      We can find by the spirometry measurement

    • B. 

      Is part of the volume remaining in the lung in case of normal breathing

    • C. 

      We can not breathe out

  • 17. 
    The P-wave has its origin in
    • A. 

      Repolarization of atria

    • B. 

      Depolarization of atria

    • C. 

      Depolarization of ventricles

  • 18. 
    The inspiratory vital capacity:
    • A. 

      Is the maximum volume of the air we can take in breath

    • B. 

      We can calculate as a sum of inspiratory reserve volume (IRV), expiratory reserve volume (ERV) and tidal volume (TV)

    • C. 

      Is a minimum volume needed for body survival

  • 19. 
    In a healthy heart the action potential is generated in
    • A. 

      SA - node

    • B. 

      Purkinje fibers

    • C. 

      Septum

  • 20. 
    If the transfer of the action potential from the SA node to the AV node is disconnected, the action potential is generated in
    • A. 

      Purkynjee fibers

    • B. 

      Muscle fibers

    • C. 

      AV node