USMLE Forum Archives - USMLE Step 2 CK - Infection 3
Infection 3
Brainlab - 12-11-06 09:54
A 74-year-old woman, who has been followed for the past 25 years for chronic obstructive pulmonary disease (COPD) presents complaining of 48 hours of temperatures to 38.6 C (101.4 F) and worsening shortness of breath. She has a chronic productive cough, which has become more copious. On physical examination, she has rhonchi and increased fremitus in the posterior mid-lung field. A Gram's stain reveals many epithelial cells and multiple gram-positive and gram-negative organisms; no neutrophils are seen. Which of the following is the most likely organism causing the symptoms?
A. Escherichia coli
B. Haemophilus influenzae
C. Klebsiella pneumoniae
D. Mycobacterium tuberculosis
E. Mycoplasma pneumonia
Brainlab - 12-11-06 09:54
A 74-year-old woman, who has been followed for the past 25 years for chronic obstructive pulmonary disease (COPD) presents complaining of 48 hours of temperatures to 38.6 C (101.4 F) and worsening shortness of breath. She has a chronic productive cough, which has become more copious. On physical examination, she has rhonchi and increased fremitus in the posterior mid-lung field. A Gram's stain reveals many epithelial cells and multiple gram-positive and gram-negative organisms; no neutrophils are seen. Which of the following is the most likely organism causing the symptoms?
A. Escherichia coli
B. Haemophilus influenzae
C. Klebsiella pneumoniae
D. Mycobacterium tuberculosis
E. Mycoplasma pneumonia
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#1
Re: Infection 3 TheOne - 12-11-06 13:11 Longterm COPD predispose to answers B & C... I will go with B.
#2
Re: Infection 3 drs_kh - 12-12-06 04:11 B, common organisms that cause respiratory infection in COPD patients are H. influenza, Streptococcus pneumoniae and Moraxella catarrhalis.
#3
Re: Infection 3
Brainlab - 12-12-06 18:02 But S.pneumoniae, H.influenza and Moraxella catarrhalis are most common cause of sinusitis ???
#4
Re: Infection 3 drs_kh - 12-13-06 02:17 You are right Brainlab, and also these organisms are the most common cause of respiratory infection in COPD patients.
#5
Re: Infection 3 Brainlab - 12-13-06 11:18 Should the patient with COPD be vaccinated against H.influencae?
#7
Re: Infection 3 babbu5508 - 07-08-10 01:19 B. Haemophilus influenzae...the most common cause of pneumonia in a case of chronic obstructive pulmonary disease....
#9
Re: Infection 3 bingousmle - 07-09-10 01:03 chronic productive cough, which has become more copious and she has rhonchi and increased fremitus in the posterior mid-lung fields point to Klebsiella pneumoniae
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