AM
NURS 305 - ANTIMICROBIAL DRUGS (PART 1)
EXAM QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS VERIFIED LATEST
UPDATE GRADED A++
Terms in this set (256)
Define selective toxicity The ability of a drug to injure a targeted cell or
target organism without injuring other cells or
organisms
In what three ways is Disruption of bacterial cell wall
antibiotic selective Inhibition of an enzyme
toxicity achieved? unique to bacteria
Disruption of bacterial
protein synthesis
Why do antibiotics not Aspects they target are only fond in bacteria; highly
cause much toxicity? selective
Do human cells have No; antibiotics can only penetrate the peptidoglycan
peptidoglycan? Why is layer found in bacteria
this important?
Inhibit bacterial ell wall synthesis
Increase cell membrane
What are the five main permeability Inhibit
mechanisms of action bacterial protein
of antibiotics? synthesis
Inhibit bacterial
synthesis of nucleic
acids Inhibit specific
1/
13
, 8/17/25, 10:10
AM
biochemical
reactions
What is the main Extensively affects body flora
disadvantage of broad-
spectrum antibiotics?
Bactericidal vs "cidal": kills bacteria directly
bacteriostatic "static": halts bacterial growth without killing bacteria
What happens over time Resistance
with repeated exposure
to antibiotics?
What are some bacteria S. aureus, enterobacter, pseudomonas aeruginosa, C. diff
that have microbial drug
resistance?
2/
13