MMSC 438 EXAM 2 (WITH COMPLETE SOLUTIONS)

MMSC 438 EXAM 2 (WITH COMPLETE SOLUTIONS)
Question : URT normal biota
Correct answer: lots of normal biota, particularly in the mouth
-viridans strep
-nonhemolytic strep
-anaerobes
-CoNS
-diphtheroids
-micrococcus
-candida (yeast)
Question : LRT normal biota
Correct answer: there is no actual normal biota present
-sputum is a common sample that is used, and has to pass
through the mouth where it will become contaminated with
normal biota
-something is only considered a pathogen if it is in greater
concentration than a normal biota organism
Question : respiratory tract defense mechanisms

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