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Important characteristics of antimicrobial drugs include _______.


A) low toxicity for human tissues
B) high toxicity against microbial cells
C) a lack of serious side effects in humans
D) stability and solubility in body tissues and fluids
E) All of the choices are correct.

F) A) and D)
G) B) and D)

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Which antibiotic is used to treat MRSA and VRE infections?


A) Synercid
B) Clindamycin
C) Linezolid
D) Azithromycin
E) Clarithromycin

F) B) and D)
G) None of the above

Correct Answer

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What molecule will allow some bacteria to be resistant to many penicillins?


A) Synercid
B) Penicillinase
C) Aztreonam
D) Clavulanic acid
E) Imipenem

F) D) and E)
G) C) and D)

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Antibiotics are derived from all of the following, except ______.


A) Penicillium
B) Bacillus
C) Staphylococcus
D) Streptomyces
E) Cephalosporium

F) B) and E)
G) B) and D)

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A high therapeutic index is advantageous. This refers to _______.


A) high efficacy of the drug against the target microbe
B) the ratio between low selective toxicity and high human toxicity
C) the ratio between high selective toxicity and low human toxicity
D) selective toxicity and human toxicity are both high

E) None of the above
F) All of the above

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Which two antibiotics affect nucleic acids of bacteria?


A) Tetracycline and amphotericin B
B) Trimethoprim and sulfonamides
C) Rifampin and quinolones
D) Tetracycline and bacitracin
E) Penicillin and vancomycin

F) B) and C)
G) A) and B)

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Ciprofloxacin is used to treat viral respiratory infections.

A) True
B) False

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