Deck 13: Antimicrobial Drugs

Question 1

Which of the following antifungal drugs is not well absorbed and is fairly toxic?

A)Nystatin
B)Fluconazole
C)Flucytosine
D)Terbinafine

Answer 1

Nystatin

Question 2

Which of the following may be used to treat penicillin-resistant infections or be given to patients who have allergic reactions to penicillin?

A)Erythromycin
B)Florfenicol
C)Chloramphenicol
D)Tilmicosin

Answer 2

Erythromycin

Question 3

What zone of inhibition means the bacteria are inhibited only by the maximum recommended dosage of antibiotic?

A)Resistant
B)Sensitive
C)Intermediate
D)Breakpoint

Answer 3

Intermediate

Question 4

Which mechanism is only effective when bacteria are growing and dividing?

A)Inhibition of cell wall synthesis
B)Damage to the cell membrane
C)Inhibition of protein synthesis
D)Interference with metabolism

Question 5

What is used to describe the spectrum of activity of a particular drug?

A)Cell wall size
B)Types of bacteria
C)Gram stain properties
D)List of all susceptible species

Question 6

Which generation of cephalosporin would be used to combat MRSA?

A)Second
B)Third
C)Fourth
D)Fifth

Question 7

Which of the following can cause fatal diarrhea in guinea pigs, rabbits and hamsters?

A)Polypeptide
B)Cephalosporin
C)Monobactam
D)Penicillin

Question 8

______ would be used for systemic mycotic infections.

A)Nystatin
B)Fluconazole
C)Flucytosine
D)Terbinafine

Question 9

During which mechanism do antibiotics act selectively on the ribosomes of bacteria?

A)Inhibition of cell wall synthesis
B)Damage to the cell membrane
C)Inhibition of protein synthesis
D)Interference with metabolism

Question 10

Which of the following has been found to reduce gingival inflammation in dogs with periodontal disease?

A)Chlortetracycline
B)Doxycycline
C)Minocycline
D)Oxytetracycline

Question 11

Which of the following have a beta-lactam ring and interfere with bacterial cell wall synthesis?

A)Polypeptide
B)Cephalosporin
C)Monobactam
D)Tetracyclines

Question 12

Which of the following is an aminoglycoside?

A)Vancomycin
B)Erythromycin
C)Gentamicin
D)Bactramycin

Question 13

What would be used to treat ringworm?

A)Flucytosine
B)Lyme sulfur
C)Ketoconazole
D)Amphotericin B

Question 14

Which of the following is used mainly in combination with other antifungals to treat Cryptococcus infections?

A)Polyenes
B)Imidazoles
C)Antimetabolics
D)Superficials

Question 15

Which of the following statements means that an agent is bacteriostatic?

A)Refers to antibiotic drugs that act on both Gram-positive and Gram-negative bacteria
B)Refers to antibiotic drugs that act on either Gram-positive or Gram-negative bacteria
C)Refers to an agent that is capable of killing bacteria
D)Refers to an agent that is capable of inhibiting the growth or replication of bacteria

Question 16

When an antibiotic allows a cell to overfill with water, resulting in cell death, what mechanism has the antibiotic used to inhibit or kill the bacteria?

A)Inhibition of cell wall synthesis
B)Damage to the cell membrane
C)Inhibition of protein synthesis
D)Interference with metabolism

Question 17

Which antibiotic is so poorly absorbed after oral administration that if an animal licks it after topical administration, the risk is minimal?

A)Bacitracin
B)Vancomycin
C)Carbapenems
D)Monobactams

Question 18

Which of the following has been banned in food animals in the United States because it may result in irreversible aplastic anemia?

A)Erythromycin
B)Florfenicol
C)Chloramphenicol
D)Tilmicosin

Question 19

Which of the following antifungals disrupt fungal cell divisions?

A)Polyenes
B)Imidazoles
C)Antimetabolics
D)Superficials

Question 20

How do antimicrobials work?

A)They kill or inhibit microorganisms.
B)They kill microorganisms only.
C)They inhibit growth of microorganisms only.
D)They kill and inhibit microorganisms.

Question 21

Which of the following statements is true?

A)Disinfection guarantees that all pathogens are eliminated.
B)Antiseptics and disinfectants do not have the same chemicals in them.
C)Antiseptics kill or inhibit the growth of microorganisms on living tissue.
D)All disinfectants are suitable for use as antiseptics.

Question 22

Which antiviral drug affects attachments of viruses to cell receptors and inhibits the replication of influenza A virus?

A)Interferon alfa
B)Amantadine
C)Ganciclovir
D)Acyclovir

Question 23

Which of the following is available as a scrub that is commonly used for prepping patients prior to surgery and as a surgical scrub for veterinary staff?

A)Hypochlorite
B)Iodine
C)Chlorhexidine
D)Clostridium

Question 24

Which disinfecting solution is recommended by OSHA in a medical-based practice?

A)Alcohol
B)Halogen
C)Biguanide
D)Aldehyde

Question 25

Which of the following is not affected by organic matter or hard water?

A)Oxidizing agents
B)Ethylene oxide
C)Halogens
D)Alcohols