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Previous Topic | Next Topic  NB F1- Respiratory infx related to air conditioner 




 
Kaplan Qbank USMLE



Author7 Posts
  #1

An outbreak of acute pneumonia occurs in military recruits living in one barrack and only in those persons located near the air conditioner. Epidemiologic surveillance results in isolation of the causal organism from the patients and from the drip pans of the air conditioner. The organism is resistant to penicillin, susceptible to erythromycin, and weakly gram-negative. The most likely organism is?

A ) Bordetella pertussis

B ) Haemophilus influenzae (nontypeable)

C ) Klebsiella pneumoniae

D ) Legionella pneumophila

E ) Mycobacterium tuberculosis

F ) Mycoplasma pneumoniae

G ) Staphylococcus aureus

H ) Streptococcus agalactiae (group B)

I ) Streptococcus pneumoniae

J ) Streptococcus pyogenes (group A)


  #2

legionella

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  #3

yes its legionella

  #4

D....YUPnod

  #5

D

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  #6

Hi, it is D grin bcz Legionella transmitted mostly from air conditionar or water which is also resistance to penicilin and drug of choice is Erythromycin for Legionere's disease

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Edited by drfax on 09/04/06 - 03:18 PM

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  #7

D definitely
it's legionnaire's disease, aerosol transmission thru AC's

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