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

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A Stethoscope _______________________________ Contents: Questions Questions and answers ________________________________  Questions How many heart sounds are there? 1 2 3 4 How many components do S1 and S2  each have? One  Two Three Four Which heart sound has the highest pitch? 1st heart sound 2nd heart sound 3rd heart sound 4th heart sound Which heart sound lasts for the longest duration? 1st heart sound 2nd heart sound  3rd heart sound 4th heart sound Closure of AV valves produce 1st heart sound 2nd heart sound  3rd heart sound 4th heart sound 2nd heart sound is produced during Closure of AV valves Opening of AV valves Closure of aortic and pulmonary valves Opening of aortic and pulmonary valves Heart sound that is heard in the beginning of ventricular systole: 1st heart sound 2nd heart sound  3rd heart sound 4th heart sound Heart sound that is heard in the end of ventricular systole: 1st heart sound  2nd heart sound 3rd heart sound 4th heart sound S...

Important MCQs in Respiratory Physiology (Lung Capacities, Forced Expiratory Volume(FEV1)) || set-2

 What to expect? In this set, you will get important questions related to lung capacities. You can find more questions with label “respiratory physiology”  in the “labels” section.

We value your time. Without any boring intro, let’s get straight into questions. 


Questions section
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1. Functional residual capacity (FRC) is:

A. RV + IRV

B. RV + ERV 

C. RV+ TV

D. IRV + ERV


Need answer?


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2. Sum of TV, and IRV is:

A. TLC

B. VC (FVC)

C. FRC

D. Inspiratory capacity


Need answer?


3. Which is wrong about Total Lung Capacity?

A. Sum of all lung volumes

B. It includes Residual Volume

C. It does not include Residual Volume

D. It can not be measured by spirometry


Need answer?


4. Sum of TV, IRV, and ERV is:

A. TLC

B. VC (FVC)

C. FRC

D. Inspiratory capacity


Need answer?


5. Volume of air that can be expired in first one second is:

A. IRV

B. ERV 

C. FEV1

D. FEV2


Need answer?


6. FEV1/FVC in normal lungs is equal to:

A. 0.7

B. 0.8

C. 0.9

D. 0.98


Need answer?


7. FEV1/FVC ratio is decreased in:

A. Obstructive lung disease 

B. Restrictive lung disease

C. Both 

D. None



Need answer?


8. FEV1/FVC ratio is increased in:

A. Obstructive lung disease

B. Restrictive lung disease 

C. Both 

D. None



Need answer?


9. In lung fibrosis,FEV1/FVC ratio is :

A. Increased 

B. Decreased


Need answer?


10. In asthma,FEV1/FVC ratio is :

A. Increased 

B. Decreased


Need answer?


Answer section

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1. Functional residual capacity (FRC) is:

A. RV + IRV

B. RV + ERV 

C. RV+ TV

D. IRV + ERV



Answer is : B  back to question 2?


(volume remaining in the lungs after a tidal volume is expired. Since, it includes the RV, Therefore it cannot be measured by spirometry.



• IRV -Inspiratory Reserve Volume

• ERV -Expiratory Reserve Volume

• FEV1- Forced Expiratory Volume in first 1 second

• FEV2- Forced Expiratory Volume in second 1 second)


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2. Sum of TV, and IRV is:

A. TLC

B. VC (FVC)

C. FRC

D. Inspiratory capacity


Answer is : D  back to question 3?


(TLC- Total lung capacity

VC- Vital capacity

FVC- Forced vital capacity

FRC- Functional residual capacity

TV- Tidal volume

IRV-Inspiratory Reserve Volume )


—————————————————————-


3. Which is wrong about Total Lung Capacity?

A. Sum of all lung volumes

B. It includes Residual Volume

C. It does not include Residual Volume

D. It can not be measured by spirometry


Answer is : C   back to question 4?


(TLC includes RV, That is why it can not be measured by spirometry)


————————————————


4. Sum of TV, IRV, and ERV is:

A. TLC

B. VC (FVC)

C. FRC

D. Inspiratory capacity



Answer is : B  back to question 5?


(TLC- Total Lung Capacity

VC- Vital Capacity

FVC- Forced Vital Capacity

FRC- Functional Residual Capacity

TV- Tidal Volume

IRV-Inspiratory Reserve Volume 

ERV-Expiratory Reserve Volume)


—————————————————————


5. Volume of air that can be expired in first one second is:

A. IRV

B. ERV 

C. FEV1

D. FEV2

Answer is : C    back to question 6?


(• IRV-Inspiratory Reserve Volume

• ERV -Expiratory Reserve Volume

• FEV1- Forced Expiratory Volume in first 1 second

• FEV2- Forced Expiratory Volume in second 1 second)


—————————————————————


6. FEV1/FVC in normal lungs is equal to:

A. 0.7

B. 0.8

C. 0.9

D. 0.98


Answer is : B    back to question 7?


—————————————————————-


7. FEV1/FVC ratio is decreased in:

A. Obstructive lung disease 

B. Restrictive lung disease

C. Both 

D. None


Answer is : A      back to question 8?


(only FEV1 is decreased in obstructive lung diseases, therefore, the ratio is also decreased.)



—————————————————————-


8. FEV1/FVC ratio is increased in:

A. Obstructive lung disease

B. Restrictive lung disease 

C. Both 

D. None


Answer is : B     back to question 9?


(Both FEV1 and FVC are decreased in restrictive lung disease, therefore, the ratio could be normal or increased.)



—————————————————————-


9. In lung fibrosis, FEV1/FVC ratio is :

A. Increased 

B. Decreased



Answer is : A    back to question 10?


(Lung fibrosis = A restrictive lung disease

Both FEV1 and FVC are decreased in restrictive lung disease, therefore, the ratio could be normal or increased.)



—————————————————————-


10. In asthma, FEV1/FVC ratio is :

A. Increased *

B. Decreased




Answer is : B    


(Asthma= An obstructive lung diseases
only FEV1 is decreased in obstructive lung diseases, therefore, the ratio is also decreased.)


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Congratulations, you have made it to the bottom. Stay focused, stay curious.

How many questions did you get right? Let us know in the comment.



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