Question 1

Why has the United States and Europe banned the use of human drugs in animal feeds?

Accepted Answer

A) Because it makes the animals grow too large. 
B) Because it causes infections in the cows and poultry fed them. 
C) Because it raises the price of the meat too high. 
D) Because it contributes to the growing drug resistance problem. 
E) All of the choices are correct. 
A) Because it makes the animals grow too large. 
B) Because it causes infections in the cows and poultry fed them. 
C) Because it raises the price of the meat too high. 
D) Because it contributes to the growing drug resistance problem. 
E) All of the choices are correct.

Question 2

All of the following are correct about Tamiflu and Relenza except

Accepted Answer

A) they should be given early in an infection. 
B) they prevent assembly and release of the virus. 
C) they are used to treat infections by influenza A and B. 
D) they inhibit fusion and uncoating of the virus. 
E) they are effective prophylactics for influenza. 
A) they should be given early in an infection. 
B) they prevent assembly and release of the virus. 
C) they are used to treat infections by influenza A and B. 
D) they inhibit fusion and uncoating of the virus. 
E) they are effective prophylactics for influenza.

Question 3

All of the following are correct about allergic reactions to drugs except

Accepted Answer

A) the drug acts as an antigen. 
B) the greatest number of antimicrobic allergies are to the penicillins. 
C) hives may be the result after the drug is taken. 
D) anaphylaxis can occur. 
E) allergic reactions generally will occur the first time a person takes the drug. 
A) the drug acts as an antigen. 
B) the greatest number of antimicrobic allergies are to the penicillins. 
C) hives may be the result after the drug is taken. 
D) anaphylaxis can occur. 
E) allergic reactions generally will occur the first time a person takes the drug.

Question 4

Antibiotics are derived from all the following except

Accepted Answer

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

Question 5

All of the following could be reasons why antimicrobic treatment fails except

Accepted Answer

A) the inability of the drug to diffuse into the infected body compartment. 
B) a mixed infection where some of the pathogens are drug resistant. 
C) not completing the full course of treatment. 
D) a disk diffusion test showing pathogen sensitivity to the antimicrobic. 
E) diminished gastrointestinal absorption due to an underlying condition or age. 
A) the inability of the drug to diffuse into the infected body compartment. 
B) a mixed infection where some of the pathogens are drug resistant. 
C) not completing the full course of treatment. 
D) a disk diffusion test showing pathogen sensitivity to the antimicrobic. 
E) diminished gastrointestinal absorption due to an underlying condition or age.

Question 6

Levaquin, a fluoroquinolone, kills viruses.

Accepted Answer

A) True 
 B)False

Question 7

Drug susceptibility testing

Accepted Answer

A) determines the patient's response to various antimicrobics. 
B) determines the pathogen's response to various antimicrobics. 
C) determines if normal flora will be affected by antimicrobics. 
D) determines if the drug is increasing to toxic levels in a patient. 
E) determines the pathogen's identity. 
A) determines the patient's response to various antimicrobics. 
B) determines the pathogen's response to various antimicrobics. 
C) determines if normal flora will be affected by antimicrobics. 
D) determines if the drug is increasing to toxic levels in a patient. 
E) determines the pathogen's identity.

Question 8

Which of the following is not a mode of action of an antiviral?

Accepted Answer

A) block penetration 
B) block transcription and translation 
C) inhibit DNA synthesis 
D) block maturation 
E) bond to ergosterol in the cell membrane 
A) block penetration 
B) block transcription and translation 
C) inhibit DNA synthesis 
D) block maturation 
E) bond to ergosterol in the cell membrane

Question 9

Antimicrobics effective against a wide variety of microbial types are termed

Accepted Answer

A) antibiotics. 
B) narrow-spectrum drugs. 
C) semisynthetic drugs. 
D) synthetic drugs. 
E) broad-spectrum drugs. 
A) antibiotics. 
B) narrow-spectrum drugs. 
C) semisynthetic drugs. 
D) synthetic drugs. 
E) broad-spectrum drugs.

Question 10

________ are preparations of live microorganisms that are fed to animals and humans to modify the intestinal flora.

Accepted Answer

The answer of ________ are preparations of live microorganisms that...

Question 11

A ratio of the dose of the drug that is toxic to humans versus the minimum effective dose for that pathogen is assessed to predict the potential for toxic drug reactions.This is called the

Accepted Answer

A) Kirby-Bauer technique. 
B) antibiogram. 
C) E-test. 
D) minimum inhibitory concentration (MI
C) . 
E) therapeutic index (TI). 
A) Kirby-Bauer technique. 
B) antibiogram. 
C) E-test. 
D) minimum inhibitory concentration (MI
C) . 
E) therapeutic index (TI).

Question 12

Discuss 5 factors that have influenced the increasing development of resistant microbial strains.

Accepted Answer

1. Overuse and misuse of antibiotics: Th

Question 13

Broad-spectrum drugs that disrupt the body's normal flora often cause

Accepted Answer

A) nephrotoxicity. 
B) superinfections. 
C) allergic reactions. 
D) drug toxicity. 
E) All of the choices are correct. 
A) nephrotoxicity. 
B) superinfections. 
C) allergic reactions. 
D) drug toxicity. 
E) All of the choices are correct.

Question 14

Which of these drugs is useful in treating infections by methicillin-resistant S.aureus and vancomycin-resistant Enterococcus?

Accepted Answer

A) tetracycline 
B) isoniazid 
C) linezolid 
D) aminoglycosides 
E) cephalosporins 
A) tetracycline 
B) isoniazid 
C) linezolid 
D) aminoglycosides 
E) cephalosporins

Question 15

Important characteristics of antimicrobic drugs include

Accepted Answer

A) readily delivered to the site of infection. 
B) high toxicity against microbial cells. 
C) do not cause serious side effects in humans. 
D) remains active in body tissues and fluids. 
E) All of the choices are correct. 
A) readily delivered to the site of infection. 
B) high toxicity against microbial cells. 
C) do not cause serious side effects in humans. 
D) remains active in body tissues and fluids. 
E) All of the choices are correct.

Question 16

A "shotgun" approach to antimicrobial therapy involves

Accepted Answer

A) giving a narrow spectrum drug. 
B) culturing the pathogen and identifying it. 
C) performing the disk diffusion assay. 
D) using a broad spectrum drug so that the chance of killing the pathogen is greater. 
E) using antiviral and antibiotic drugs in combination. 
A) giving a narrow spectrum drug. 
B) culturing the pathogen and identifying it. 
C) performing the disk diffusion assay. 
D) using a broad spectrum drug so that the chance of killing the pathogen is greater. 
E) using antiviral and antibiotic drugs in combination.

Question 17

Gram negative bacilli are often treated with

Accepted Answer

A) penicillin G. 
B) vancomycin. 
C) aminoglycosides. 
D) synercid. 
E) isoniazid. 
A) penicillin G. 
B) vancomycin. 
C) aminoglycosides. 
D) synercid. 
E) isoniazid.

Question 18

The MIC is the smallest concentration of an antimicrobic required to inhibit the growth of the microbe.

Accepted Answer

A) True 
 B)False

Question 19

The drug used for several protozoan infections is

Accepted Answer

A) nystatin. 
B) griseofulvin. 
C) amphotericin B. 
D) sulfa drugs. 
E) metronidazole. 
A) nystatin. 
B) griseofulvin. 
C) amphotericin B. 
D) sulfa drugs. 
E) metronidazole.

Question 20

Which of the following antimicrobials is contraindicated for children due to permanent tooth discoloration?

Accepted Answer

A) Penicillin G 
B) Tetracycline 
C) Gentamicin 
D) Vancomycin 
E) Erythromycin 
A) Penicillin G 
B) Tetracycline 
C) Gentamicin 
D) Vancomycin 
E) Erythromycin

Exam 12: Drugs, Microbes, Host-The Elements of Chemotherapy

Why has the United States and Europe banned the use of human drugs in animal feeds?

All of the following are correct about Tamiflu and Relenza except

All of the following are correct about allergic reactions to drugs except

Antibiotics are derived from all the following except

All of the following could be reasons why antimicrobic treatment fails except

Levaquin, a fluoroquinolone, kills viruses.

Drug susceptibility testing

Which of the following is not a mode of action of an antiviral?

Antimicrobics effective against a wide variety of microbial types are termed

________ are preparations of live microorganisms that are fed to animals and humans to modify the intestinal flora.

A ratio of the dose of the drug that is toxic to humans versus the minimum effective dose for that pathogen is assessed to predict the potential for toxic drug reactions.This is called the

Discuss 5 factors that have influenced the increasing development of resistant microbial strains.

Broad-spectrum drugs that disrupt the body's normal flora often cause

Which of these drugs is useful in treating infections by methicillin-resistant S.aureus and vancomycin-resistant Enterococcus?

Important characteristics of antimicrobic drugs include

A "shotgun" approach to antimicrobial therapy involves

Gram negative bacilli are often treated with

The MIC is the smallest concentration of an antimicrobic required to inhibit the growth of the microbe.

The drug used for several protozoan infections is

Which of the following antimicrobials is contraindicated for children due to permanent tooth discoloration?

The Main Themes of Microbiology

The Chemistry of Biology

Tools of the Laboratory: Methods of Studying Microorganisms

A Survey of Prokaryotic Cells and Microorganisms

A Survey of Eukaryotic Cells and Microorganisms

An Introduction to Viruses

Microbial Nutrition, Ecology, and Growth

An Introduction to Microbial Metabolism: the Chemical Crossroads of Life

An Introduction to Microbial Genetics

Genetic Engineering: a Revolution in Molecular Biology

Physical and Chemical Agents for Microbial Control

Microbe-Human Interactions: Infection, Disease, and Epidemiology

An Introduction to Host Defenses and Innate Immunities

Adaptive, Specific Immunity and Immunization

Disorders in Immunity

Procedures for Identifying Pathogens and Diagnosing Infections

The Gram-Positive and Gram-Negative Cocci of Medical Importance

The Gram-Positive Bacilli of Medical Importance

The Gram-Negative Bacilli of Medical Importance

Miscellaneous Bacterial Agents of Disease

The Fungi of Medical Importance

The Parasites of Medical Importance

Introduction to Viruses That Infect Humans: the Dna Viruses

The Rna Viruses That Infect Humans

Environmental Microbiology

Applied and Industrial Microbiology

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