The correct answer would be, Bronchoscopy.
Bronchoscopy will reveal the cause of these problems.
Explanation:
Bronchoscopy is a procedure in which the doctor examines the lungs of the person thoroughly. The main pathways of the lungs, Bronchi, are also examined by the doctor. A thin tube containing light and camera is inserted into the mouth or nose of the patient which reaches his lungs.
So when Lisa is having trouble breathing along with occasional bleeding, it means she has some problem with her lungs which needs to be checked by the doctor through a procedure called Bronchoscopy. Problem in breathing and bleeding is directly related to the problem with lungs. So Bronchoscopy will reveal the cause of these problems accurately.
Learn more about Bronchoscopy at:
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