Buy Antimicrobial Drugs Discussion Assignment

Buy Antimicrobial Drugs Discussion Assignment
Buy Antimicrobial Drugs Discussion Assignment
CHOOSE THE MOST APPROPRIATE RESPONSE
47.1 Choose the antimicrobial which acts by interfering
with DNA function in the bacteria:
A. Chloramphenicol
B. Ciprofloxacin
C. Streptomycin
D. Vancomycin (p. 628)
47.2 Which antibiotic is primarily bacteriostatic but
becomes bactericidal at higher concentrations:
A. Erythromycin
B. Tetracycline
C. Chloramphenicol
D. Ampicillin (p. 629)
47.3 Select the antibiotic that has a high therapeutic
index:
A. Streptomycin
B. Doxycycline
C. Cephalexin
D. Vancomycin (p. 629)
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Antimicrobial Drugs
47.1 4 7 . 1 B 47.2 4 7 . 2 A 47.3 4 7 . 3 C 47.4 4 7 . 4 D
Antimicrobial Drugs 319
47.5 Widespread and prolonged use of an antibiotic leads
to emergence of drug resistant strains because
antibiotics:
A. Induce mutation in the bacteria
B. Promote conjugation among bacteria
C. Allow resistant strains to propagate preferentially
D. All of the above (p. 630, 631)
47.6 The most important mechanism of concurrent
acquisition of multidrug resistance among bacteria
is:
A. Mutation
B. Conjugation
C. Transduction
D. Transformation (p. 631)
47.7 Drug destroying type of bacterial resistance is
important for the following antibiotics except:
A. Cephalosporins
B. Tetracyclines
C. Chloramphenicol
D. Aminoglycosides (p. 631,670)
47.8 Acquisition of inducible energy dependent efflux
proteins by bacteria serves to:
A. Secrete exotoxins
B. Enhance virulance
C. Lyse host tissue
D. Confer antibiotic resistance (p. 631)
47.5 4 7 . 5 C 47.6 4 7 . 6 B 47.7 4 7 . 7 B 47.8 4 7 . 8 D
320 MCQs in Pharmacology 320
Buy Antimicrobial Drugs Discussion Assignment
47.9 Methicillin resistant staphylococci do not respond to
β-lactam antibiotics because:
A. They produce a β-lactamase which destroys
methicillin and related drugs
B. They elaborate an amidase which destroys
methicillin and related drugs
C. They have acquired penicillin binding protein which has low affinity for β-lactam antibiotics
D. They are less permeable to β-lactam antibiotics (p. 659)
47.10 The following strategy will promote rather than curb
emergence of antibiotic resistant micro-organisms:
A. Whenever possible use broad spectrum antibiotics
B. Prefer a narrow spectrum antibiotic to a broad
spectrum one if both are equally effective
C. Prefer short and intensive courses of antibiotics
D. Use antibiotic combinations for prolonged
therapy
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