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Exam (elaborations)

NSC 830: ANTIBIOTICS EXAM QUESTIONS AND ANSWERS 100% PASS

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NSC 830: ANTIBIOTICS EXAM QUESTIONS AND ANSWERS 100% PASS

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Uploaded on
January 9, 2026
Number of pages
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Written in
2025/2026
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NSC 830: ANTIBIOTICS EXAM
QUESTIONS AND ANSWERS 100% PASS




Why does a gram positive stain show up purple - ANS There is a thick peptidoglycogen layer
that takes up crystal violet stain


why does gram negative stain pink/red? - ANS takes up counterstain to appear that color


how many layers does a gram negative bacteria have? - ANS 3- thin peptidoglycogen layer
sandwiched between an inner and outer cell membrane


What color does atypical bacteria stain? - ANS no color


Why doesn't atypical bacteria have a color stain? - ANS there is no peptidoglycogen layer


Minimum inhibitory concentration (MIC) - ANS the smallest concentration of drug that visibly
inhibits growth


antibiotics that inhibits cell wall synthesis - ANS penicillin
cephalosporins
vancomycin
fosfomycin


1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.

, antibiotic that inhibit bacterial protein synthesis - ANS tetracylines
macrolides
lincosamide
mupiricin
oxazolididone
aminoglycoside


MISC method of action antibiotic - ANS fluoroquinolones - DNA
metronidazole
sulfonamides - DNA
nitrofurantion- DNA


which abx are ONLY gram negative - ANS aminoglycosides
metronidazole


which abx are ONLY gram positive - ANS Vancomycin
oxazolidinone


which abx are gram -/+/atypical - ANS tetracylines
macrolides
sulfonamides


are penicillins broad or narrow spectrum? - ANS both


When to use broad spectrum PCN - ANS Acute sinusitis
strep pharyngitis
cellulitis
acute otitis media

2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.

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