Question 1

All of the following are characteristic of Pseudomonas aeruginosa EXCEPT

Accepted Answer

A)   production of pyocyanin.
B)   rod-shaped.
C)   gram-positive cell wall.
D)   growth in moist environments.
E)   resistance to many types of disinfectants and antibiotics.F) All of the above
G) C) and E)

Question 2

A 35-year-old woman has a red, raised rash on the inside of her thighs. Gram -stained skin scrapings show large budding cells with pseudohyphae. The infection is caused by

Accepted Answer

A)   herpes simplex virus.
B)   Streptococcus pyogenes.
C)   varicella-zoster virus.
D)   Candida albicans.
E)   Staphylococcus aureus.F) D) and E)
G) A) and D)

Question 3

Pathogens of the skin often enter via hair follicles and ducts of the sweat glands.

Accepted Answer

A) True 
 B)False

Question 4

A 45-year-old man has pus-filled vesicles distributed over his back in the upper right quadrant, over his right shoulder, and upper right quadrant of his chest. His symptoms are most likely due to

Accepted Answer

A)   Candida albicans.
B)   herpes simplex virus.
C)   Streptococcus pyogenes.
D)   Staphylococcus aureus.
E)   varicella-zoster virus.F) All of the above
G) C) and D)

Question 5

Exfoliative toxin is responsible for

Accepted Answer

A)   thrush.
B)   otitis externa.
C)   impetigo.
D)   fever blisters.
E)   scalded skin syndrome.F) A) and B)
G) A) and C)

Question 6

Acanthamoeba infections are usually transmitted via insects.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following is used to treat candidiasis of the skin or mucous membranes?

Accepted Answer

A)   trifluridine
B)   penicillin
C)   acyclovir
D)   miconazole
E)   sulfonamideF) A) and B)
G) None of the above

Question 8

Warts are caused by

Accepted Answer

A)   poxvirus.
B)   herpesvirus.
C)   Staphylococcus aureus.
D)   papillomavirus.
E)   parvovirus.F) A) and B)
G) A) and C)

Question 9

The eradication of smallpox was possible because

Accepted Answer

A)   it can be prevented with the same vaccine used to prevent chickenpox.
B)   it was a relatively mild disease.
C)   there are no animal reservoirs of the virus.
D)   it occurs only in the tropics.
E)   insect vectors were eliminated.F) A) and E)
G) B) and C)

Question 10

An eight-year-old girl has scabs and pus-filled vesicles on her face and throat. Three weeks earlier she had visited her grandmother, who had shingles. What infection does the eight -year-old have?

Accepted Answer

A)   rubella
B)   measles
C)   scabies
D)   fever blisters
E)   chickenpoxF) A) and B)
G) A) and E)

Question 11

Which of the following is used to treat herpetic keratitis?

Accepted Answer

A)   sulfonamide
B)   acyclovir
C)   trifluridine
D)   penicillin
E)   fungicideF) B) and E)
G) C) and D)

Question 12

Blue-green pus is characteristic of Pseudomonas wound infections.

Accepted Answer

A) True 
 B)False

Question 13

Assume that your lab partner swabs the side of his face and uses the swab to inoculate a nutrient agar plate. The next day, he performs a Gram stain on the colonies. They are gram -positive cocci. You advise him that he should next look for

Accepted Answer

A)   an acid-fast reaction.
B)   pseudopods.
C)   a coagulase reaction.
D)   conidiospores.
E)   pseudohyphae.F) B) and E)
G) D) and E)

Question 14

Which of the following statements about Reye syndrome is FALSE?

Accepted Answer

A)   It is associated with aspirin use.
B)   Symptoms may include vomiting, drowsiness, or behavior changes.
C)   It is a complication that may occur in chickenpox infection.
D)   Prolonged neurological problems may occur.
E)   It mostly affects older adults.F) A) and B)
G) All of the above

Question 15

Haemophilus influenzae is the most common bacterial cause of pinkeye.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following is incorrectly matched?

Accepted Answer

A)   Neisseria gonorrhea - opthalmia neonatorum
B)   Pseudomonas - inclusion conjunctivitis
C)   Acanthamoeba - keratitis
D)   Haemophilus influenzae - pinkeye
E)   Chlamydia trachomatis - trachomaF) C) and D)
G) B) and D)

Question 17

Staphylococcus aureus is responsible for all of the following EXCEPT

Accepted Answer

A)   pimples.
B)   acne.
C)   carbuncles.
D)   sties.
E)   boils.F) None of the above
G) B) and E)

Question 18

All of the following are protective factors of the skin and its secretions EXCEPT

Accepted Answer

A)   keratin.
B)   tightly packed cells.
C)   salt.
D)   pyocyanin production.
E)   lysozyme production.F) All of the above
G) A) and E)

Question 19

Buruli ulcer is caused by

Accepted Answer

A)   a virus.
B)   a mite.
C)   a fungus.
D)   gram-positive bacteria.
E)   acid-fast bacteria.F) C) and D)
G) D) and E)

Question 20

Why is vaccination for rubella recommended?

Accepted Answer

A)   It is no longer recommended; rubella has been eradicated.
B)   Health care workers have a high incidence of infection.
C)   Death from secondary infections is common.
D)   There is a high incidence of congenital infections and birth defects.
E)   It has a high mortality rate in school-age children.F) A) and E)
G) B) and E)

Exam 21: Microbial Diseases of the Skin and Eyes

Which of the following statements about Reye syndrome is FALSE?

Correct AnswerverifiedShow Answer

Pathogens of the skin often enter via hair follicles and ducts of the sweat glands.

Correct AnswerverifiedShow Answer

Assume that your lab partner swabs the side of his face and uses the swab to inoculate a nutrient agar plate. The next day, he performs a Gram stain on the colonies. They are gram -positive cocci. You advise him that he should next look for

Correct AnswerverifiedShow Answer

Exfoliative toxin is responsible for

Correct AnswerverifiedShow Answer

Haemophilus influenzae is the most common bacterial cause of pinkeye.

Correct AnswerverifiedShow Answer

Blue-green pus is characteristic of Pseudomonas wound infections.

Correct AnswerverifiedShow Answer

Why is vaccination for rubella recommended?

Correct AnswerverifiedShow Answer

A 35-year-old woman has a red, raised rash on the inside of her thighs. Gram -stained skin scrapings show large budding cells with pseudohyphae. The infection is caused by

Correct AnswerverifiedShow Answer

Staphylococcus aureus is responsible for all of the following EXCEPT

Correct AnswerverifiedShow Answer

Which of the following is incorrectly matched?

Correct AnswerverifiedShow Answer

Acanthamoeba infections are usually transmitted via insects.

Correct AnswerverifiedShow Answer

Which of the following is used to treat herpetic keratitis?

Correct AnswerverifiedShow Answer

Buruli ulcer is caused by

Correct AnswerverifiedShow Answer

Warts are caused by

Correct AnswerverifiedShow Answer

The eradication of smallpox was possible because

Correct AnswerverifiedShow Answer

All of the following are protective factors of the skin and its secretions EXCEPT

Correct AnswerverifiedShow Answer

All of the following are characteristic of Pseudomonas aeruginosa EXCEPT

Correct AnswerverifiedShow Answer

An eight-year-old girl has scabs and pus-filled vesicles on her face and throat. Three weeks earlier she had visited her grandmother, who had shingles. What infection does the eight -year-old have?

Correct AnswerverifiedShow Answer

A 45-year-old man has pus-filled vesicles distributed over his back in the upper right quadrant, over his right shoulder, and upper right quadrant of his chest. His symptoms are most likely due to

Correct AnswerverifiedShow Answer

Which of the following is used to treat candidiasis of the skin or mucous membranes?

Correct AnswerverifiedShow Answer

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