Heart sounds-mcqs|| medicine mcqs|| cardiology mcqs for medical students||

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A Stethoscope

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Contents:


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 Questions

  1. How many heart sounds are there?

    1. 1

    2. 2

    3. 3

    4. 4



  2. How many components do S1 and S2  each have?

    1. One 

    2. Two

    3. Three

    4. Four



  3. Which heart sound has the highest pitch?

    1. 1st heart sound

    2. 2nd heart sound

    3. 3rd heart sound

    4. 4th heart sound



  4. Which heart sound lasts for the longest duration?

    1. 1st heart sound

    2. 2nd heart sound 

    3. 3rd heart sound

    4. 4th heart sound



  5. Closure of AV valves produce

    1. 1st heart sound

    2. 2nd heart sound 

    3. 3rd heart sound

    4. 4th heart sound



  6. 2nd heart sound is produced during

    1. Closure of AV valves

    2. Opening of AV valves

    3. Closure of aortic and pulmonary valves

    4. Opening of aortic and pulmonary valves



  7. Heart sound that is heard in the beginning of ventricular systole:

    1. 1st heart sound

    2. 2nd heart sound 

    3. 3rd heart sound

    4. 4th heart sound



  8. Heart sound that is heard in the end of ventricular systole:

    1. 1st heart sound 

    2. 2nd heart sound

    3. 3rd heart sound

    4. 4th heart sound



  9. S3 and S4 occur in

    1. Systole

    2. Diastole



  10. Early filling sound(LV)

    1. S3

    2. S4



  11. Late filling sound(LV)

    1. S3

    2. S4



  12. False about S3

    1. Could be physiologic

    2. Loudest at apex 

    3. Commonly seen in acute heart failure

    4. High pitched sound



  13. False about S4

    1. Heard in patients with stiff left ventricle

    2. Heard in atrial fibrillation

    3. Almost always pathologic

    4. Occur in diastole      


       

  14. Which is not a cause of loud S1

    1. Prolonged AV flow

    2. Shortened diastole due to tachycardia

    3. Short PR interval

    4. Prolonged PR interval



  15. Which is not a cause of soft S1

    1. Prolonged PR interval

    2. Splitting of S1

    3. Poor conduction through chest wall

    4. Increased AV flow



  16. Abnormal heart sounds are

    1. Splitting

    2. Murmurs

    3. Heart block

    4. Ectopic beats



  17. First heart sound is large in

    1. Aortic stenosis

    2. Mitral stenosis

    3. Mitral regurgitation

    4. VSD



  18. Which is not true about S1

    1. Better heard with diaphragm of stethoscope

    2. Heard at the end of the ventricular systole

    3. Caused by closure of tricuspid valve

    4. Lower frequency than S2



  19. Wide-split S2 is seen in

    1. ASD

    2. LBBB

    3. PDA

    4. MR



  20. Paradoxical S2 splitting is seen in

    1. ASD

    2. LBBB

    3. RBBB

    4. Pulmonary HTN

    5. All



  21. Severity of mitral stenosis is assessed by

    1. Presence of S3

    2. Loud S1

    3. S2-OS gap

    4. Presence of S4



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Questions and answers


 

  1. How many heart sounds are there?

    1. 1

    2. 2

    3. 3

    4. 4

      • S1, S2, S3, S4



  2. How many components do S1 and S2  each have?

    1. One 

    2. Two

    3. Three

    4. Four

      • one from left sided heart valves(pulmonary, tricuspid)

      • one from right sided heart valve(aortic, mitral)



  3. Which heart sound has the highest pitch?

    1. 1st heart sound

    2. 2nd heart sound

    3. 3rd heart sound

    4. 4th heart sound



  4. Which heart sound lasts for the longest duration?

    1. 1st heart sound

    2. 2nd heart sound 

    3. 3rd heart sound

    4. 4th heart sound



  5. Closure of AV valves produce

    1. 1st heart sound

    2. 2nd heart sound 

    3. 3rd heart sound

    4. 4th heart sound

      • AV- atrioventricular valves(biscuspid, tricuspid)



  6. 2nd heart sound is produced during

    1. Closure of AV valves

    2. Opening of AV valves

    3. Closure of aortic and pulmonary valves

    4. Opening of aortic and pulmonary valves

      • only during closing of the valves



  7. Heart sound that is heard at the beginning of ventricular systole:

    1. 1st heart sound

    2. 2nd heart sound 

    3. 3rd heart sound

    4. 4th heart sound



  8. Heart sound that is heard at the end of ventricular systole:

    1. 1st heart sound 

    2. 2nd heart sound

    3. 3rd heart sound

    4. 4th heart sound



  9. S3 and S4 occur in

    1. Systole

    2. Diastole



  10. Early filling sound(LV)

    1. S3

    2. S4

      • left ventricular filling sound



  11. Late filling sound(LV)

    1. S3

    2. S4

      • left ventricular filling sound



  12. False about S3

    1. Could be physiologic

    2. Loudest at apex 

    3. Commonly seen in acute heart failure

    4. High pitched sound

      • S3 and S4 both are low pitched heart sounds



  13. False about S4

    1. Heard in patients with stiff left ventricle

    2. Heard in atrial fibrillation

    3. Almost always pathologic

    4. Occur in diastole      

      • S4 is not heard in atrial fibrillation


       

  14. Which is not a cause of loud S1

    1. Prolonged AV flow

    2. Shortened diastole due to tachycardia

    3. Short PR interval

    4. Prolonged PR interval

      • prolonged PR causes soft S1



  15. Which is not a cause of soft S1

    1. Prolonged PR interval

    2. Splitting of S1

    3. Poor conduction through chest wall

    4. Increased AV flow



  16. Abnormal heart sounds are

    1. Splitting

    2. Murmurs

    3. Heart block

    4. Ectopic beats



  17. First heart sound is large in

    1. Aortic stenosis

    2. Mitral stenosis

    3. Mitral regurgitation

    4. VSD

      • mitral/ bicuspid valve (closure of it produces S1)



  18. Which is not true about S1

    1. Better heard with diaphragm of stethoscope

    2. Heard at the end of the ventricular systole

    3. Caused by closure of tricuspid valve

    4. Lower frequency than S2

      • S1 is heard at the beginning of the ventricular systole



  19. Wide-split S2 is seen in

    1. ASD

    2. LBBB

    3. PDA

    4. MR

      • ASD- atrial septal defect

      • LBBB- left bundle branch block

      • PDA- patent ductus arteriosus

      • MR- mitral regurgitaiton



  20. Paradoxical S2 splitting is seen in

    1. ASD

    2. LBBB

    3. RBBB

    4. Pulmonary HTN

    5. All


      • ASD- atrial septal defect

      • LBBB- left bundle branch block

      • RBBB- right bundle branch block

      • Pulmonary HTN- pulmonary hypertension

      • PDA- patent ductus arteriosus

      • MR- mitral regurgitaiton



  21. Severity of mitral stenosis is assessed by

    1. Presence of S3

    2. Loud S1

    3. S2-OS gap

    4. Presence of S4



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