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A Case of Atelectasis

by Dr Ray Makar Leave a Comment



Q- A 5-year-old boy is brought to the emergency room for cough and trouble breathing. His parents mention that he was playing with some coins a short time ago. The coin is most likely lodged in which of the following lobar bronchi?

A- Left middle lobar bronchus

B- Left superior lobar bronchus

C- Right middle lobar bronchus

D- Right superior lobar bronchus

C- Right middle lobar bronchus- Foreign body is usually lodged in this bronchus as it the shortest, wider and most vertical than all others.



Q- Which one of the following statements correctly describes the inspiratory reserve volume?

A- Volume of air that can still be inhaled in after a normal inspiration

B- Volume of air that moves into the lung with each normal inspiration

C- Volume of air that present in the lung after maximal inspiration

D- Volume of air that remains in the lung after a normal expiration

A- Volume of air that can still be inhaled in after a normal inspiration- A is the correct answer, B is tidal volume, C is functional residual capacity while D is expiratory reserve volume.



Q- Which of the following findings is consistent with a case of right lung atelectasis?

A- Trachea is deviated to the left

B- Trachea is deviated to the right

C- Trachea is not deviated (normal location)

B- Trachea is deviated to the right- In atelectasis, trachea is deviated towards the side of the lesion while is tension pneumothorax and pleural effusion it is deviated to the other side of the lesion.



Filed Under: USMLE Step 1 Tagged With: repeated usmle questions, usmle, usmle questions, usmle step 1

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