Chapter Test

Microbiology, 9e (Tortora)Chapter 21

Objective Questions

1)

Which of the following is not normal microbiota of the skin? A)

Streptococcus B)

Pityrosporum C)

Staphylococcus D)

Propionibacterium E)

Corynebacterium

2)

An 8-year-old female 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 8-year-old have?

A)

Chickenpox B)

Measles C)

Fever blisters D)

Scabies E)

German measles

3)

Which of the following pairs is mismatched? A)


S. aureus impetigo B)

S. pyogenes erysipelas C)

P. acnes acne D)

P. aeruginosa otitis externa E)

None of the above

4)

The etiologic agent of warts is A)

Papovavirus. B)

Poxvirus. C)

Herpesvirus. D)

Parvovirus E)

None of the above.

5)

Which of the following is not a characteristic of P. aeruginosa? A)

Gram-positive rods B)

Oxidative metabolism C)

Oxidase positive


D)

Produce pyocyanin E)

None of the above


6)

Which of the following pairs is mismatched? A)

Pustular rash smallpox B)

Koplik spots rubella C)

Papular rash measles D)

Vesicular rash chickenpox E)

None of the above

7)

Which of the following is not transmitted by the respiratory route? A)

Smallpox B)

Chickenpox C)

German measles D)

Cold sore E)

None of the above

8)

Which of these is not caused by herpesvirus? A)

Chickenpox B)


Shingles C)

Keratoconjunctivitis D)

Smallpox E)

None of the above

9)

Thrush and vaginitis are caused by A)

Herpesvirus. B)

Chlamydia trachomatis. C)

Candida albicans. D)

Staphylococcus aureus. E)

Streptococcus pyogenes.

10)

The greatest single cause of blindness in the world is A)

Neonatal gonorrheal ophthalmia. B)

Keratoconjunctivitis. C)

Trachoma. D)

Inclusion conjunctivitis.


E)

Pinkeye.


11)

Which of the following can be treated with topical chemotherapeutic agents? A)

Herpes gladiatorium B)

Sporotrichosis C)

Dermatomycosis D)

Rubella E)

None of the above

12)

Which of the following is not a cause of ringworm? A)

Microsporum B)

Trichophyton C)

Tinea capitis D)

Epidermophyton E)

None of the above

13)

Newborns' eyes are treated with an antibiotic when A)

N. gonorrhoeae is isolated from the eyes. B)


The mother is blind. C)

The mother has genital herpes. D)

The mother has gonorrhea. E)

Always.

14)

A possible complication of herpetic keratitis is A)

Encephalitis. B)

Fever blisters. C)

Subacute sclerosing panencephalitis. D)

Congenital rubella syndrome. E)

None of the above.

15)

Which of the following is sensitive to penicillin? A)

Chlamydia B)

Herpesvirus C)

Candida D)

Streptococcus


E)

Pseudomonas


16)

Which region of the skin supports the largest bacterial population? A)

Axilla B)

Scalp C)

Forearms D)

Legs E)

All are equal

17)

Which infection is caused by S. aureus? A)

Pimples B)

Sty C)

Furuncle D)

Carbuncle E)

All of the above

18)

Which of the following is not a characteristic used to identify S. pyogenes? A)

Coagulase-positive B)


Group A cell wall antigen C)

Group M proteins D)

Beta-hemolytic E)

None of the above

19)

Which of the following is not a causative agent of conjunctivitis? A)

Chlamydia trachomatis B)

Herpes simplex C)

Adenovirus D)

Neisseria gonorrhoeae E)

Hemophilus aegyptii

20)

In which of the following respects is measles similar to German measles? A)

Rash B)

Etiologic agent C)

Encephalitis as a complication D)

Congenital complications


E)

In name only


21)

Vaccination for rubella is A)

Not necessary because the disease is mild. B)

Not necessary if a person has had an infection. C)

Recommended only for pregnant women. D)

Recommended for newborns to prevent congenital disease. E)

None of the above.

22)

All of the following statements about congenital rubella syndrome are true except A)

It is contracted in utero. B)

It may be fatal. C)

It may result in deafness, blindness, and mental retardation. D)

It doesn't occur with subclinical infections. E)

All of the above are true.

23)

The etiologic agent of chickenpox. A)

Herpes simplex B)


Herpes zoster C)

HHV-6 D)

Parvovirus E)

Poxvirus

24)

The etiologic agent of fifth disease. A)

Herpes simplex B)

Herpes zoster C)

HHV-6 D)

Parvovirus E)

Poxvirus

25)

The etiologic agent of roseola. A)

Herpes simplex B)

Herpes zoster C)

HHV-6 D)

Parvovirus


E)

Poxvirus


26)

The etiologic agent of fever blisters. A)

Herpes simplex B)

Herpes zoster C)

HHV-6 D)

Parvovirus E)

Poxvirus

27)

Used to treat epidemic herpetic keratitis. A)

Penicillin B)

Sulfonamide C)

Trifluridine D)

Fungicide E)

None of the above

28)

Used to treat smallpox. A)

Penicillin B)


Sulfonamide C)

Trifluridine D)

Fungicide E)

None of the above

29)

Used to treat sporotrichosis. A)

Penicillin B)

Sulfonamide C)

Trifluridine D)

Fungicide E)

None of the above

30)

Used to treat candidiasis. A)

Penicillin B)

Sulfonamide C)

Trifluridine D)

Fungicide


E)

None of the above


31)

Scabies is a skin disease caused by A)

A slow virus. B)

A protozoan. C)

A mite. D)

A bacterium. E)

A prion.

32)

Scabies is transmitted by A)

Fomites. B)

Food. C)

Water. D)

Soil. E)

None of the above.

33)

A patient has pus-filled vesicles and scabs on her face, throat, and lower back. She most likely has A)

Measles. B)


Mumps. C)

Chickenpox. D)

Rubella. E)

Smallpox.

34)

Which of the following leads to all the others? A)

Toxemia B)

Scalded skin syndrome C)

Staphylococcal infection D)

TSST-1 E)

Sudden drop in blood pressure

35)

Herpes gladiatorium is transmitted by A)

Direct contact. B)

The respiratory route. C)

The fecal-oral route. D)

Insect bites.


E)

All of the above.


36)

The patient has a papular rash. Microscopic examination of skin scrapings reveals small 8-legged animals.

A)

Candida B)

Microsporum C)

P. aeruginosa D)

S. aureus E)

Scabies

37)

The patient has vesicles and scabs over her forehead. Microscopic examination of skin scrapings shows gram-positive cocci in clusters.

A)

Candida B)

Microsporum C)

P. aeruginosa D)

S. aureus E)

Scabies

38)

The patient has scaling skin on his fingers. Conidiospores are seen in microscopic examination of skin scrapings.

A)


Candida B)

Microsporum C)

P. aaeruginosa D)

S. aureus E)

Scabies

39)

A 45-year-old male 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

A)

Candida albicans. B)

Herpes simplex virus. C)

Staphylococcus aureus. D)

Streptococcus pyogenes. E)

Varicella-zoster virus.

40)

A 35-year-old female 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

A)

Candida albicans. B)



Staphylococcus aureus. D)

Streptococcus pyogenes. E)

Varicella-zoster virus.


41)

Cytoplasmic inclusions were observed in a fetus that died in utero after 6 months' gestation. The probable cause of the fetus's death was

A)

Fifth disease. B)

Herpes simplex. C)

Measles. D)



42)

Assume that your lab partner swabs the side of his face and used 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

A)

An acid-fast reaction. B)

A coagulase reaction. C)

Conidiospores. D)

Pseudohyphae. E)

Pseudopods.

43)

Which of the following is incorrectly matched? A)


Chickenpox Poxvirus B)

Conjunctivitis Chlamydia trachomatis C)

Conjunctivitis Pseudomonas D)

Infected tissue fluoresces Dermatomycosis E)

Opportunistic infection in AIDS patients Candidiasis

44)

A 17-year-old male has pus-filled cysts on his face and upper back. Microscopic examination reveals gram-positive rods. This infection is

A)

Acne. B)

Boils. C)

Carbuncles. D)

Impetigo. E)

Pimples.

45)

A 17-year-old male has pus-filled cysts on his face and upper back. Microscopic examination reveals gram-positive rods. This infection is caused by

A)

Acanthamoeba. B)



Propionibacterium acnes. D)



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