p53
Forum Guru
Topics: 51
Posts: 804
|
A 47-year-old male homeless chronic alcoholic presents with a 1-month history of fever, night sweats, cough, productive sputum, and pleuritic chest pain. Chest X-ray reveals a 3-cm cavity with air-fluid level in the posterior segment of the left lower lobe. Which of the following is the most likely etiologic agent?
A. Actinomyces israelii
B. Haemophilus influenzae
C. Mycobacterium tuberculosis
D. Mycoplasma pneumoniae
E. Streptococcus pneumonie
___________________
"Everything should be made as simple as possible, but not simpler." - Albert Einstein
|
| mdwannabe
Forum Guru
Topics: 37
Posts: 1,133
|
C. MB Tb
___________________
"Life not lived for others, is not worth living" Uncle Einstein
"A life is not important, except in the impact it has on other lives" -Jackie Robinson
|
| hgheith
Forum Elite
Topics: 39
Posts: 268
|
A? A. Israelii
|
| p53
Forum Guru
Topics: 51
Posts: 804
|
Yes, it's A.israelii.
___________________
"Everything should be made as simple as possible, but not simpler." - Albert Einstein
|
| ssrpk
Forum Fanatic
Topics: 154
Posts: 2,819
|
MB tb may lead to cavitation but it almost never leads to air-fluid levels on radiograph
___________________
life is guud
|
| p53
Forum Guru
Topics: 51
Posts: 804
|
Also, aerobs (MB tb) tend to go to upper lobes (better ventilation), anaerobes (A.israelii) - to lower lobes. and also alcoholics tend to aspirate from mouth, where A.israelii resides.
___________________
"Everything should be made as simple as possible, but not simpler." - Albert Einstein
|
| Snood
Forum Junior
Topics: 11
Posts: 55
|
Why not strep pneumonia ?
|
| Snood
Forum Junior
Topics: 11
Posts: 55
|
oh aspiration of anaerobes?
|
| ssrpk
Forum Fanatic
Topics: 154
Posts: 2,819
|
strep. pneumo rarely causes lung abscess
___________________
life is guud
|
|
| |
| | | | | | | | | |
