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Infections 03

Topic: Pathology

Created on Monday, February 9 2009 by gliageek

Last modified on Monday, February 9 2009.


Courtesy of Dr. Mark Cohen
Cerebral infection by this organism is most closely associated with which of the following conditions?

 
        A) Abnormalities in blood sugar and/or acid-base balance
 
        B) Abnormalities of neutrophil function
 
        C) Abnormalities of cell-mediated immunity
 
        D) Indwelling catheters and total parenteral nutrition
 
        E) Abnormalities of humoral immunity
 

 


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This question was created on February 09, 2009 by gliageek.
This question was last modified on February 09, 2009.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS




A) Abnormalities in blood sugar and/or acid-base balance

This answer is incorrect.


Organisms causing rhinocerebral mucormycosis thrive on high sugar and low pH, classically in poorly controlled diabetics  (See References)

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B) Abnormalities of neutrophil function

This answer is correct.


Cerebral aspergillosis is usually seen in neutropenic patients or in patients with abnormalities of neutrophil function  (See References)

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C) Abnormalities of cell-mediated immunity

This answer is incorrect.


Cellular immunodeficiency predisposes to infection with obligate intracellular pathogens, such as toxoplasmosis and CMV  (See References)

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D) Indwelling catheters and total parenteral nutrition

This answer is incorrect.


Candida species enjoy the easy access and high lipid content in patients on TPN  (See References)

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E) Abnormalities of humoral immunity

This answer is incorrect.


Humoral immunodeficiency predisposes patients to infection by encapsulated bacteria, such as pneumococcus  (See References)

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References:

1. Graham, D.I., and Lantos, P.L. (2002). Greenfield's Neuropathology, 7th ed. Arnold Press, New York. (ISBN:0340742313)Advertising:
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pathology
Infections 03
Question ID: 020909115
Question written by gliageek. (C) FrontalCortex.com 2006-2009, all rights reserved. Created: 02/09/2009
Modified: 02/09/2009
Estimated Permutations: 120

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