Do You Know All Heart Disease?

20 Questions | Total Attempts: 133

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Do You Know All Heart Disease?

Take this quiz and prove yourself now, how well do you know about heart disease?


Questions and Answers
  • 1. 
    The amount of blood in the ventricle at the end of its resting phase is the 
    • A. 

      End-systolic volume

    • B. 

      Stroke volume

    • C. 

      Preload

    • D. 

      Ejection fraction

  • 2. 
    Under what condition is end-diastolic volume (EDV) most likely to increase while ejection fraction decreases?
    • A. 

      Exercise

    • B. 

      Sympathetic nerve stimulation

    • C. 

      (+) inotropic response

    • D. 

      Heart failure

  • 3. 
    A change in preload causes a change in myocardial contractile force. This response is known as a 
    • A. 

      (+) inotropic effect

    • B. 

      (+) dromotropic effect

    • C. 

      Starling's law of the heart

    • D. 

      (-) chronotropic effect

  • 4. 
    A drug causes a (+) inotropic effect, a (-) dromotropic effect, and a (-) chronotropic effect. What drug response would you expect to observe?
    • A. 

      Tachycardia

    • B. 

      Low blood pressure

    • C. 

      Ankle edema

    • D. 

      Slow heart rate

  • 5. 
    A patient in heart failure is given a drug that is classified as a beta1 adrenergic agonist. The drug 
    • A. 

      Blocks the beta 1 adrenergic receptors and causes a (-) chronotropic and (-) inotropic effect

    • B. 

      Activates the beta1 adrenergic receptors and causes bronchoconstriction

    • C. 

      Activates the beta1 adrenergic receptors and causes a (+) inotropic effect

    • D. 

      Activates the vagus nerve, thereby slowing heart rate and strengthening myocardial contraction

  • 6. 
    Which of the following statements is correct about cardiac output?
    • A. 

      Cardiac output is determined by the heart rate and pulse

    • B. 

      Stimulation of the sympathetic nerves decreases cardiac output

    • C. 

      Vagal discharge increases cardiac output

    • D. 

      Cardiac output is determined by heart rate and stroke volume

  • 7. 
    During ventricular diastole
    • A. 

      Blood is ejected from the ventricles

    • B. 

      The semilunar valves are open

    • C. 

      The atrioventricular valves are closed

    • D. 

      Blood fills the ventricles

  • 8. 
    Increased return of blood to the heart stretches the heart muscle, thereby 
    • A. 

      Stimulating the vagus nerve

    • B. 

      Increasing stroke volume

    • C. 

      Closing the atrioventricular valves

    • D. 

      Increasing coronary blood flow

  • 9. 
    Ventricular systole refers to 
    • A. 

      Ventricular depolarization

    • B. 

      The opening of the valves of the ventricles

    • C. 

      Ventricular filling

    • D. 

      Contraction of the ventricular myocardium

  • 10. 
    Which of the following is least related to the vagus nerve?
    • A. 

      Parasympathetic

    • B. 

      Slows heart rate

    • C. 

      (+) inotropic effect

    • D. 

      Autonomic

  • 11. 
    Which of the following is least characteristic of sympathetic nerve stimulation?
    • A. 

      (-) inotropic effect

    • B. 

      Increased heart rate

    • C. 

      Increased stroke volume

    • D. 

      Increased cardiac output

  • 12. 
    Which of the following is descriptive of stroke volume?
    • A. 

      Mm Hg

    • B. 

      Ml/min

    • C. 

      Ml/beat

    • D. 

      Liters/24 hr

  • 13. 
    Milliliters per minute describes 
    • A. 

      Stroke volume

    • B. 

      Heart rate

    • C. 

      Pulse

    • D. 

      Cardiac output

  • 14. 
    Which of the following is least related to a bradycardia?
    • A. 

      Less than 60 beats/min

    • B. 

      Vagal discharge

    • C. 

      (-) chronotropic effect

    • D. 

      Sympathetic nerve stimulation

  • 15. 
    Which of the following is least likely to increase cardiac output?
    • A. 

      Increased heart rate

    • B. 

      Increased stroke volume

    • C. 

      Increased venous return (Starling's law of the heart)

    • D. 

      Vagal discharge

  • 16. 
    Which of the following is least related to tachydysrhythmias?
    • A. 

      Sympathetic nervous systemactivation

    • B. 

      Beta1 adrenergic receptor activation

    • C. 

      (+) dromotropic effect

    • D. 

      Vagal discharge

  • 17. 
    Bradycardia is most likely to be caused by 
    • A. 

      Beta1 adrenergic receptor activation

    • B. 

      Parasympatholytic effect

    • C. 

      Vagal discharge

    • D. 

      Muscarinic blockade

  • 18. 
    Atropine, a muscarinic blocker,
    • A. 

      Increases heart rate

    • B. 

      Causes bradycardia

    • C. 

      Is also classified as sympathomimetic

    • D. 

      Is vagomimetic

  • 19. 
    Starling's law relates force of myocardial contraction with
    • A. 

      Heart rate

    • B. 

      Preload

    • C. 

      End systolic volume

    • D. 

      Blood pressure

  • 20. 
    Venodilation
    • A. 

      Increases afterload

    • B. 

      Decreases preload

    • C. 

      Increases end diastolic volume

    • D. 

      Stretches the ventricular myocardium

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