Microbiology Chapter 21 Flashcards


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1

Streptococcus

All of the following are normal microbiota of the skin EXCEPT _____

2

Trachoma

The single greatest cause of blindness in the world is _________

3

methicillin resistance

All of the following are characteristic of the Group A beta-hemolytic streptococci EXCEPT

4

as a routine precaution

Newborns' eyes are treated with an antibiotic

5

encephalitis.

A possible complication of chickenpox is

6

armpits

Which region of the skin supports the largest bacterial population?

7

acne.

Staphylococcus aureus is responsible for all of the following EXCEPT

8

scalded skin syndrome.

Exfoliative toxin is responsible for

9

chickenpox

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?

10

They can be controlled by vaccination.

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

11

There is a high incidence of congenital infections and birth defects.

Why is vaccination for rubella recommended?

12

It mostly affects older adults.

Which of the following statements about Reye syndrome is FALSE?

13

there are no animal reservoirs of the virus.

The eradication of smallpox was possible because

14

acyclovir

Which of the following is used to treat shingles?

15

It can be treated by eliminating fatty foods from the diet.

Which of the following is NOT true of acne?

16

mite

Scabies is a skin disease caused by a

17

chickenpox.

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

18

Staphylococcus aureus.

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

19

varicella-zoster virus.

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

20

papillomavirus.

Warts are caused by

21

Candida albicans.

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

22

a coagulase reaction.

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

23

Propionibacterium acnes.

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

24

All of the answers are correct.

Which of the following is likely to spread MRSA among athletes?

25

conjunctivitis

Inflammation of the thin clear membrane lining the eyelid and eye is properly termed

26

gram-positive cell wall.

All of the following are characteristic of Pseudomonas aeruginosa EXCEPT

27

measles

Koplik spots are a diagnostic indicator of

28

tinea

All of the following are transmitted via the respiratory route EXCEPT

29

pyocyanin production.

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

30

Candida albicans

Thrush and vaginitis are caused by

31

True

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

32

False

The majority of the staphylococci isolated from human skin are coagulase-positive.

33

True

Haemophilus influenzae is the most common bacterial cause of pinkeye.

34

True

Candidiasis often occurs following antibiotic therapy for bacterial infections.

35

True

lue-green pus is characteristic of Pseudomonas wound infections.