|ACTUAL COMPLETE REAL EXAM QUESTIONS WITH COMPLETE VERIFIED
SOLUTION GUIDE (A+ GRADED 100% CORRECT ) 2025 LATEST VERSION!!
What test is used to monitor susceptible strains of antibiotics,
detect emerging resistant strains, and to test sensitivity of a
known bacterium to a known concentration of drug? -
ANSWER-The Kirby-Bauer method or disk diffusion test or
antibiotic susceptibility test (AST).
What are zones of inhibition? - ANSWER-"Bacteria-free"
circles or areas of no
growth of varying sizes around
a plate.
What is the MIC? - ANSWER-Identified as the smallest
concentration of an antibiotic that inhibits growth of the test
bacterium. Inhibits growth but not necessarily kill.
What is the MBC? - ANSWER-Identified as the smallest
concentration of
, antibiotic that prevents any growth of the test
bacterium. The killing
concentration.
What are the possible results of the AST? - ANSWER-
Resistant (R),
intermediate (I), or
susceptible (S)
What are broad spectrum antibiotics? - ANSWER-Active
against a wide range
of
bacteria.
What are narrow spectrum antibiotics? - ANSWER-Have limited
activity and are
useful against particular species of
microorganisms.
When should a broad spectrum antibiotic be considered? -
ANSWER-When
cause of infection is unknown but a bacterial infection is
suspected, or when