Microbiology Final- Chapter 21

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Microbiology
Chapter 21
updated 2 weeks ago by lilyarzate
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1

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

They can be controlled by vaccination

2

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

pyocyanin production

3

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

methicillin resistance

4

Thrush and vaginitis are caused by

Candida albicans

5

Which of the following is used to treat shingles?

acyclovir

6

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

A) physical contact

B) shared equipment

C) all of the answers are correct

D) whirlpool bath

E) taping gels

C

7

Which region of the skin supports the largest bacterial population?

armpits

8

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

miconazole

9

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

Propionibacterium acnes

10

A possible complication of chickenpox is

encephalitis

11

Koplik spots are a diagnostic indicator of

measles

12

All of the following are normal microbiota of the skin EXCEPT

Streptococcus

13

All of the following are transmitted via the respiratory route EXCEPT

tinea

14

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

varicella-zoster virus.

15

Buruli ulcer is caused by

acid-fast bacteria.

16

Why is vaccination for rubella recommended?

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

17

Which of the following is NOT caused by HSV-1?

canker sores

18

Which of the following is NOT true of acne?

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

19

Newborns' eyes are treated with an antibiotic

as a routine precaution

20

Which of the following statements about congenital rubella syndrome is FALSE?

It does not occur with subclinical infections.

21

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?

chickenpox

22

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

a coagulase reaction.

23

Which of the following cause(s) ringworm?

Microsporum and Epidermophyton

24

You are examining a scraping of an infected cornea under the brightfield microscope and see eukaryotic cells. This is probably a case of

Acanthomoeba keratitis.

25

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

Microsporum

26

A newborn infant develops a whitish overgrowth on the tongue and inner lips. This newborn is suffering from an infection with

Candida albicans

27

Which of the following is used to treat sporotrichosis?

oral potassium iodide

28

Exfoliative toxin is responsible for

scalded skin syndrome

29

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

sarcoptes

30

All of the following are causative agents of conjunctivitis EXCEPT

herpes simplex

31

Which infectious agent causes conjunctivitis and may be contracted from non-chlorinated swimming pools?

Chlamydia trachomatis

32

Which of the following is a subcutaneous mycosis?

sporotrichosis

33

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

A) taping gels

B) whirlpool baths

C) all of the answers are correct

D) physical contact

E) shared equipment

C

34

The eradication of smallpox was possible because

there are no animal reservoirs of the virus.

35

Which of the following statements about Reye syndrome is FALSE?

it mostly affects older adults

36

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

conjunctivitis

37

All of the following are characteristic of Pseudomonas aeruginosa EXCEPT

gram-positive cell wall