Loading....
Coupon Accepted Successfully!

Medicine

Open Flashcards

Respiratory

Question
25 out of 26
 

A 40-year-old alcoholic develops cough and fever. Chest x-ray shows an air-fluid level in the superior segment of the right lower lobe. The most likely etiologic agent is (AIIMS May 2009)



A Streptococcus pneumonia

B Haemophilus influenzae

C Legionella

D Anaerobes

Ans. D

Anaerobes

Of the organisms listed, only anaerobic infection is likely to cause a necrotizing process. Type III pneumococci have been reported to cause cavitary disease, but this is unusual. The location of the infiltrate suggests aspiration, also making anaerobic infection most likely. The superior segment of the right lower lobe is the one most likely to develop an aspiration pneumonia.

Respiratory Flashcard List

26 flashcards
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
13)
14)
15)
16)
17)
18)
19)
20)
21)
22)
23)
24)
25)
26)