Question 1

Measles (also known as rubeola)could be described by each of the following statements except:

Accepted Answer

A) not very contagious 
B) Koplik's spots seen on cheek mucosa 
C) two serious complications are encephalitis and sub-acute sclerosing panencephalitis 
D) most common complications are upper respiratory & middle ear infections 
A) not very contagious 
B) Koplik's spots seen on cheek mucosa 
C) two serious complications are encephalitis and sub-acute sclerosing panencephalitis 
D) most common complications are upper respiratory & middle ear infections A

Question 2

This structure secretes lacrimal fluid and carries away microbes.

Accepted Answer

A) A 
B) B 
C) C 
D) D 
A) A 
B) B 
C) C 
D) D A

Question 3

Debridement:

Accepted Answer

A) destroys much of the body's protective covering 
B) is a surgical scraping technique that improves antibiotic efficacy 
C) increases appetite in burn patients 
D) two of the above 
A) destroys much of the body's protective covering 
B) is a surgical scraping technique that improves antibiotic efficacy 
C) increases appetite in burn patients 
D) two of the above B

Question 4

Which of the following conditions is associated with the erythrogenic toxin of Streptococcus pyogenes?

Accepted Answer

A) rheumatic fever 
B) toxic shock syndrome 
C) scarlet fever 
D) roseola 
A) rheumatic fever 
B) toxic shock syndrome 
C) scarlet fever 
D) roseola

Question 5

Gas gangrene,with gas production leading to tissue necrosis,is due to:

Accepted Answer

A) Staphylococcus aureus 
B) Pseudomonas aeruginosa 
C) Clostridium perfringens 
D) Spirillum minor 
A) Staphylococcus aureus 
B) Pseudomonas aeruginosa 
C) Clostridium perfringens 
D) Spirillum minor

Question 6

Cells of this layer block the penetration of microbes and secrete mucus.

Accepted Answer

A) A 
B) B 
C) C 
D) None of these choices 
A) A 
B) B 
C) C 
D) None of these choices

Question 7

All of the following are reasons why the eyes have no normal microflora except:

Accepted Answer

A) eyelids present a physical barrier to colonization 
B) viruses are unable to penetrate the conjunctiva 
C) lacrimal gland secretes fluid that continuously flushes the cornea 
D) tears contain an enzyme that breaks down bacterial cell walls 
A) eyelids present a physical barrier to colonization 
B) viruses are unable to penetrate the conjunctiva 
C) lacrimal gland secretes fluid that continuously flushes the cornea 
D) tears contain an enzyme that breaks down bacterial cell walls

Question 8

Candida albicans is characterized by all of the following except:

Accepted Answer

A) an oval budding yeast 
B) etiology of thrush 
C) vaginitis 
D) not found normally in intestines or urogenital tract 
A) an oval budding yeast 
B) etiology of thrush 
C) vaginitis 
D) not found normally in intestines or urogenital tract

Question 9

Gas gangrene was historically thought of as a battlefield injury and thought to have played a role in determining the outcome of armed conflicts. Describe gas gangrene.What causes gas gangrene? Why is amputation so common? And what civilians are susceptible to the disease?

Accepted Answer

Gas gangrene is a serious and potentiall

Question 10

The varicella-zoster virus is associated with all statements below except:

Accepted Answer

A) causes chicken pox 
B) latent virus is reactivated when cell-mediated immunity drops below a critical level 
C) causes shingles 
D) acyclovir has been shown to be an excellent treatment for shingles 
A) causes chicken pox 
B) latent virus is reactivated when cell-mediated immunity drops below a critical level 
C) causes shingles 
D) acyclovir has been shown to be an excellent treatment for shingles

Question 11

Burn infections:

Accepted Answer

A) are difficult to diagnose as early signs are often decreased appetite and fatigue 
B) are difficult to treat as antibiotics are ineffective against the viruses that cause them 
C) with a grapelike odor and greenish discoloration are often due to viruses 
D) two of the above 
A) are difficult to diagnose as early signs are often decreased appetite and fatigue 
B) are difficult to treat as antibiotics are ineffective against the viruses that cause them 
C) with a grapelike odor and greenish discoloration are often due to viruses 
D) two of the above

Question 12

Which of the following is not considered resident microflora of the skin?

Accepted Answer

A) Staphylococcus 
B) Corynebacterium 
C) E. coli 
D) Streptococcus 
A) Staphylococcus 
B) Corynebacterium 
C) E. coli 
D) Streptococcus

Question 13

Smallpox:

Accepted Answer

A) was eradicated worldwide except for scientific repositories 
B) could be used in biological warfare 
C) vaccine is a live non-virulent smallpox virus 
D) two of the above 
A) was eradicated worldwide except for scientific repositories 
B) could be used in biological warfare 
C) vaccine is a live non-virulent smallpox virus 
D) two of the above

Question 14

Onchocerciasis and loaiasis,both parasitic eye infections,are very difficult to control because:

Accepted Answer

A) it is difficult to control the vector populations 
B) clean water is available 
C) antibiotics are not available 
D) newborns are infected at birth 
A) it is difficult to control the vector populations 
B) clean water is available 
C) antibiotics are not available 
D) newborns are infected at birth

Question 15

Mucus membranes:

Accepted Answer

A) produce an oily secretion called sebum 
B) contain keratin, a waterproofing protein 
C) trap pathogens in a thick watery secretion of glycoproteins and electrolytes 
D) are distributed with sweat glands that lower the pH of the membranes 
A) produce an oily secretion called sebum 
B) contain keratin, a waterproofing protein 
C) trap pathogens in a thick watery secretion of glycoproteins and electrolytes 
D) are distributed with sweat glands that lower the pH of the membranes

Question 16

Pediculosis is an infestation of:

Accepted Answer

A) lice 
B) ticks 
C) chiggers 
D) mites 
A) lice 
B) ticks 
C) chiggers 
D) mites

Question 17

Staphylococcus aureus causes all of the following except:

Accepted Answer

A) scalded skin syndrome 
B) carbuncles 
C) impetigo 
D) erysipelas 
A) scalded skin syndrome 
B) carbuncles 
C) impetigo 
D) erysipelas

Question 18

Human bites can cause an opportunistic infection with:

Accepted Answer

A) Pasteurella multocida 
B) Eikenella corrodens 
C) Eubacterium yurii 
D) Streptobacillus moniliformis 
A) Pasteurella multocida 
B) Eikenella corrodens 
C) Eubacterium yurii 
D) Streptobacillus moniliformis

Question 19

Which statement about skin is incorrect?

Accepted Answer

A) largest single organ of the body 
B) dead epithelial cells function as a barrier for infections 
C) normal microflora are very sensitive to the skin's antimicrobial substance 
D) consists of a thin epidermis and a thicker underlying dermis layer 
A) largest single organ of the body 
B) dead epithelial cells function as a barrier for infections 
C) normal microflora are very sensitive to the skin's antimicrobial substance 
D) consists of a thin epidermis and a thicker underlying dermis layer

Question 20

Bacterial infections of the eye include all of the following except:

Accepted Answer

A) onchocerciasis 
B) ophthalmia neonatorum 
C) conjunctivitis 
D) trachoma 
A) onchocerciasis 
B) ophthalmia neonatorum 
C) conjunctivitis 
D) trachoma

Exam 19: Diseases of the Skin and Eyes; Wounds and Bites

Measles (also known as rubeola)could be described by each of the following statements except:

This structure secretes lacrimal fluid and carries away microbes.

Debridement:

Which of the following conditions is associated with the erythrogenic toxin of Streptococcus pyogenes?

Gas gangrene,with gas production leading to tissue necrosis,is due to:

Cells of this layer block the penetration of microbes and secrete mucus.

All of the following are reasons why the eyes have no normal microflora except:

Candida albicans is characterized by all of the following except:

Gas gangrene was historically thought of as a battlefield injury and thought to have played a role in determining the outcome of armed conflicts. Describe gas gangrene.What causes gas gangrene? Why is amputation so common? And what civilians are susceptible to the disease?

The varicella-zoster virus is associated with all statements below except:

Burn infections:

Which of the following is not considered resident microflora of the skin?

Smallpox:

Onchocerciasis and loaiasis,both parasitic eye infections,are very difficult to control because:

Mucus membranes:

Pediculosis is an infestation of:

Staphylococcus aureus causes all of the following except:

Human bites can cause an opportunistic infection with:

Which statement about skin is incorrect?

Bacterial infections of the eye include all of the following except:

Scope and History of Microbiology

Fundamentals of Chemistry

Microscopy and Staining

Characteristics of Prokaryotic and Eukaryotic Cells

Essential Concepts of Metabolism

Growth and Culturing of Bacteria

Microbial Genetics

Gene Transfer and Genetic Engineering

An Introduction to Taxonomy: the Bacteria

Viruses

Eukaryotic Microorganisms and Parasites

Sterilization and Disinfection

Antimicrobial Therapy

Host-Microbe Relationships and Disease Processes

Epidemiology and Nosocomial Infections

Innate Host Defenses

Immunology I: Basic Principles of Adaptive Immunity and Immunization

Immunology Ii: Immunological Disorders and Tests

Urogenital and Sexually Transmitted Diseases

Diseases of the Respiratory System

Oral and Gastrointestinal Diseases

Cardiovascular, lymphatic and Systemic Disease

Diseases of the Nervous System

Environmental Microbiology

Applied Microbiology

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