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Old 08-24-2012
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Arrow Belindalimm Daily Questions: Microbiology #1

A 63-year-old man is brought to the emergency department after resent onset of high fever, confusion, headache, watery diarrhea, and a mildly productive cough. He has been smoking two packs of cigarettes daily for more than 30 years and has been diagnosed with chronic bronchitis. Otherwise, his past medical history is not significant. His temperature is 40.1C(104F), blood pressure is 100/70mmHg, pulse is 91/min, and respirations are 28/min. Sputum Gram staining reveals numerous neutrophils but no bacteria. which of the following is the most likely cause of this patient's disease?

A. Mycoplasma pneumoniae
B. klebsiella pneumoniae
C. Streptococcus pyrogenes
D. Legionella pneumophilia
E. Mycobacterium kansasii
F. Coccidioides immitis
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Old 08-24-2012
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Ddd.....smoker,high fever,diarheao,stains with silver not grams,atypical pneumonia


. His temperature is 40.1C(104F), blood pressure is 100/70mmHg, pulse is 91/min, and respirations are 28/min. Sputum Gram staining reveals numerous neutrophils but no bacteria. which of the following is the most likely cause of this patient's disease?

A. Mycoplasma pneumoniae
B. klebsiella pneumoniae
C. Streptococcus pyrogenes
D. Legionella pneumophilia
E. Mycobacterium kansasii
F. Coccidioides immitis[/QUOTE]
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Old 08-24-2012
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Originally Posted by imgchuchu View Post
Ddd.....smoker,high fever,diarheao,stains with silver not grams,atypical pneumonia


. His temperature is 40.1C(104F), blood pressure is 100/70mmHg, pulse is 91/min, and respirations are 28/min. Sputum Gram staining reveals numerous neutrophils but no bacteria. which of the following is the most likely cause of this patient's disease?

A. Mycoplasma pneumoniae
B. klebsiella pneumoniae
C. Streptococcus pyrogenes
D. Legionella pneumophilia
E. Mycobacterium kansasii
F. Coccidioides immitis
[/QUOTE]

Agree thats D
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  #4  
Old 08-24-2012
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Default my answer

D. Legionella pneumophilia
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Old 08-24-2012
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agree with all of them...it's D
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Old 08-24-2012
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Smile Correct answer is D

Pneumonia caused Mycoplasma pneumoniae won't present as high fever, and usually the symptoms are mild, not severe.

Because sputum reveals few bacteria, so ruling out klebsiella pneumoniae, streptococcus pyrogenes infection.

Mycobacterium kansasii is acid fast and tends to infect immunocompromised patients, like ppl with AIDS or cancer.

Coccidioides immitis causes valley fever which is asymptomatic to self-resolving pneumonia, and often presented with erythema nodosum, arthritis. Ppl travel to the endemic areas with related symptoms should be considered. The endemic regions are southwestern united states. Patients infected with Coccidioides immitis should undergo tissue examination, in which procedure spherules with endospores can be detected.
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Old 09-15-2012
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Yes D seems to be the ryt one
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Old 09-16-2012
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Correct Answer Thank you

You gave me a way to differentiate between Mycoplasma and Lesionella.
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Old 09-18-2012
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Quote:
Originally Posted by Awwad View Post
You gave me a way to differentiate between Mycoplasma and Lesionella.
Also note that Mycoplasma is associated with Bullous myringitis and cold autoimmune hemolytic anemia.In questions that says Confused/ Hyponatremia, hyperkalemia think Legionella since legionella cause Type 4 RTA.
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