Micro Ch 21

Which of the following is NOT normal microbiota of the skin?


A) Streptococcus
B) Staphylococcus
C) Pityrosporum  
D) Corynebacterium
E) Propionibacterium

An 8-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 8-year-old have?

Which of
the following pairs is mismatched?

A) Staphylococcus
aureus – impetigo   B) Streptococcus
pyogenes – erysipelas   C) Propionibacterium
acnes – pimples   D) Pseudomonas
aeruginosa – otitis externa

The etiologic agent of warts is

Which of the following is NOT a characteristic of Pseudomonas aeruginosa?

A) Gram-positive cell wall   B) Oxidative
metabolism   C) Oxidase-positive   D) Produce pyocyanin   E) Rod shaped

Which of the following pairs is mismatched?

A)Pustular rash – smallpox  
B)Koplik spots – rubella  
C)Papular rash – measles  
D)Vesicular rash – chickenpox
E)Macular rash – fifth disease

Which
of the following is NOT transmitted by the respiratory route?

A) Smallpox  
B) Chickenpox  
C) Rubella  
D)Trichophyton  
E)Measles

Which of these is NOT caused by herpesvirus?


A) Keratitis
B) Smallpox  
C) Chickenpox  
D) Roseola
E) Shingles  

Thrush and vaginitis are caused by

The greatest single cause of blindness in the world is

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


A)Herpes gladiatorium  
B)Sporotrichosis 
C) Dermatomycosis  
D) Rubella  
E) Shingles

Which
of the following is NOT a cause of ringworm?


A)Microsporum
B) Trichophyton  
C) Tinea capitis  
D) Epidermophyton
E) All of the above may cause ringworm.

Newborns' eyes are treated with an antibiotic
A) When the mother is blind
B) When the mother has gonorrhea.  
C) When Neisseria gonorrhoeae is isolated from the eyes.  
D) Always.
E) When the mother has genital herpes

14) A possible complication of herpetic keratitis is

Which of the following is sensitive to penicillin?


A)Chlamydia  
B) Herpesvirus  
C) Candida  
D) Streptococcus  

E) Pseudomonas

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 NOT caused by Staphylococcus aureus?

A)Pimples
B) Sty  
C) Furuncle  
D) Carbuncle

E) Acne

Which of the following is NOT a characteristic used to identify Streptococcus
pyogenes?

A)Coagulase-positive  
B) Group A cell wall
antigen  
C) Group M proteins  
D) Beta-hemolytic

E) Cocci

19) Which
of the following is NOT a causative agent of conjunctivitis?

A)Chlamydia trachomatis 
B) Herpes simplex  
C) Adenovirus   
D) Neisseria gonorrhoeae   

E) Haemophilus influenzae

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

A)Rash  
B) Etiologic agent  
C) Encephalitis as a complication  
D) Congenital complications

E) In name only

Vaccination for rubella

A)Is not necessary because the disease is mild.  
B) Is not necessary if a person has had an infection.

C)Is recommended only for pregnant women.  


D) Is recommended for newborns to prevent congenital disease.

E)Has reduced incidence of rubella.

23) The etiologic agent of chickenpox is

24) The etiologic agent of fifth disease is

The etiologic agent of roseola is

The etiologic agent of fever blisters is

Which of the following is used to treat epidemic herpetic keratitis?

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

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.

Which of the following is used to treat smallpox?


A) Penicillin  
B) Sulfonamide  
C) Trifluridine  
D) Fungicide  

E) None of the above

Which of the following is used to treat sporotrichosis?


A)Penicillin 
B) Sulfonamide 
C) Trifluridine

D) Fungicide  
E) None of the above

Which of
the following is used to treat candidiasis?

A) Penicillin  
B) Sulfonamide  
C) Trifluridine  
D) Fungicide  

E) None of the above

Scabies is a skin disease caused by

Scabies
is transmitted by

A) Food. 
B) Water.  
C) Fomites.
D) Soil.

E) B and C.

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

A) Measles.
B) Chickenpox.
C) Rubella.  
D) Mumps.  

E) Smallpox.

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

Buruli ulcer is caused by

A) A virus.  
B) A fungus.  
C) Direct contact.  
D) Acid-fast bacteria.

E) A mite.

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

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

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

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

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

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

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) Conidiospores
B) An acid-fast reaction. 
C) A coagulase reaction.  
D)Pseudohyphae.  
E) Pseudopods.

Which of the
following pairs is mismatched?

A) Chickenpox – Poxvirus
B) Conjunctivitis – Chlamydia trachomatis   C) Keratitis – Acanthamoeba

D)Infected tissue fluoresces – Dermatomycosis  
E) Buruli ulcer – Mycobacterium

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

Which of the following is NOT likely to spread MRSA among athletes?


A) Physical contact  
B) Whirlpool baths  
C) Taping gels  
D) Antibiotic resistance  

E) Shared equipment