Question 1

Human herpesvirus 6 (HHV-6) has all of the following characteristics except

Accepted Answer

A)  causes an infection that starts with a high fever.
B)  causes roseola in infants and young children.
C)  causes an infection that appears as a mononucleosis-like illness in adults.
D)  causes a rash that appears on the fourth day after infection.
E)  it is a very rare form of herpesvirus.F) A) and E)
G) None of the above

Question 2

Varicella and herpes zoster are caused by the same virus.

Accepted Answer

A) True 
 B)False

Question 3

What group of microorganisms does not usually call the skin "home?"

Accepted Answer

A)  micrococci
B)  diphtheroids
C)  spirochetes
D)  yeastsE) A) and B)
F) A) and C)

Question 4

S.pyogenes binds to plasminogen and then secretes ______ that creates plasmin that degrades tissue.

Accepted Answer

A)  streptokinase
B)  M protein
C)  exfoliative toxin A
D)  hyaluronidase
E)  coagulaseF) A) and D)
G) A) and E)

Question 5

This organism can infect deeper wound sites and produce exotoxins,enzymes,and gas that cause tissue and muscle necrosis:

Accepted Answer

A)  Clostridium botulinum
B)  Clostridium perfringens
C)  Clostridium difficile
D)  Clostridium tetaniE) None of the above
F) All of the above

Question 6

Measles is described as a ______ skin lesion.

Accepted Answer

A)  purpura
B)  bulla
C)  papule
D)  macule
E)  maculopapularF) A) and B)
G) B) and E)

Question 7

Transmission of the pathogen causing leishmaniasis is by the

Accepted Answer

A)  reduviid "kissing" bug.
B)  Tsetse fly.
C)  Anopheles mosquito.
D)  sand fly.
E)  hard-bodied tick.F) B) and D)
G) A) and C)

Question 8

Which of the following is mismatched?

Accepted Answer

A)  tinea capitis - ringworm of the beard
B)  tinea pedis - ringworm of the foot
C)  tinea cruis - ringworm of the groin
D)  tinea corporis - ringworm of the body
E)  tinea unguium - ringworm of the nailsF) D) and E)
G) B) and C)

Question 9

What material in skin cells provides protection from abrasions,water damage,and microorganism entry?

Accepted Answer

A)  lysozyme
B)  keratin
C)  sweat
D)  sebum
E)  saltF) A) and B)
G) A) and C)

Question 10

The most serious teratogenic effects of intrauterine rubella infection occur if it is acquired during the third trimester.

Accepted Answer

A) True 
 B)False

Question 11

If a person who has never been infected with the varicella-zoster virus comes in contact with a person who has shingles,they will come down with

Accepted Answer

A)  herpes labialis.
B)  shingles.
C)  chickenpox.
D)  infectious mononucleosis.
E)  herpes keratitis.F) C) and D)
G) None of the above

Question 12

Necrotizing fasciitis is

Accepted Answer

A)  also called impetigo.
B)  possibly caused by antibodies to Group A streptococci that cross-react with body tissues.
C)  associated with strains of Streptococcus pyogenes producing destructive enzymes and toxins.
D)  typically a sequelae of streptococcal pharyngitis.
E)  not treatable with antimicrobial drugs.F) D) and E)
G) All of the above

Question 13

All of the following pertain to measles (rubeola) except

Accepted Answer

A)  transmitted by direct contact with the rash.
B)  humans are the only reservoir for the pathogen.
C)  secondary bacterial otitis media and sinusitis can occur.
D)  involves a fatal complication called subacute sclerosing panencephalitis (SSP
E)  .
E)  dry cough,sore throat,fever,and conjunctivitis are symptoms.F) A) and E)
G) B) and E)

Question 14

Mottled,discolored pigmentation is seen in patients with tinea versicolor.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following is not true of rubeola?

Accepted Answer

A)  Its causative agent is a member of the Morbillivirus genus.
B)  It is a single-stranded nonenveloped RNA virus.
C)  It is in the Paramyxovirus family.
D)  It causes cell membranes to fuse to form syncytia.
E)  It is transmitted by respiratory droplets.F) A) and E)
G) A) and C)

Question 16

The microbial pathogen associated with the development of acne is:

Accepted Answer

A)  Staphylococcus aureus.
B)  Micrococcus luteus.
C)  Propionibacterium acnes.
D)  Streptococcus epidermidis.
E)  Corynebacterium diphtheriae.F) A) and B)
G) B) and E)

Question 17

Varicella-zoster virus

Accepted Answer

A)  uses the respiratory epithelium as its portal of entry.
B)  becomes latent in dorsal root ganglia that serve specific dermatomes.
C)  has humans as its reservoir.
D)  causes chickenpox and shingles.
E)  All of the choices are correct.F) B) and E)
G) C) and E)

Question 18

Impetigo involves itching papules that break and form a very contagious yellow crust.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following provides the eye with its best defense against microorganisms?

Accepted Answer

A)  conjunctiva
B)  eyelids
C)  lymphocytes
D)  tears
E)  eyelashesF) A) and D)
G) B) and E)

Question 20

Which of the following is not true of bacterial conjunctivitis?

Accepted Answer

A)  transmitted through both direct and indirect contact
B)  can be caused by S.pyogenes or S.pneumoniae
C)  treatment is with a broad-spectrum topical antibiotic
D)  has a clear discharge
E)  can be caused by S.aureus,H.influenzae,or N.gonorrhoeaeF) B) and E)
G) A) and E)

Exam 18: Infectious Diseases Affecting the Skin and Eyes

Which of the following is not true of bacterial conjunctivitis?

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Human herpesvirus 6 (HHV-6) has all of the following characteristics except

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If a person who has never been infected with the varicella-zoster virus comes in contact with a person who has shingles,they will come down with

Correct AnswerverifiedShow Answer

This organism can infect deeper wound sites and produce exotoxins,enzymes,and gas that cause tissue and muscle necrosis:

Correct AnswerverifiedShow Answer

Necrotizing fasciitis is

Correct AnswerverifiedShow Answer

Transmission of the pathogen causing leishmaniasis is by the

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What group of microorganisms does not usually call the skin "home?"

Correct AnswerverifiedShow Answer

What material in skin cells provides protection from abrasions,water damage,and microorganism entry?

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The most serious teratogenic effects of intrauterine rubella infection occur if it is acquired during the third trimester.

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Which of the following is mismatched?

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The microbial pathogen associated with the development of acne is:

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Which of the following provides the eye with its best defense against microorganisms?

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Which of the following is not true of rubeola?

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Mottled,discolored pigmentation is seen in patients with tinea versicolor.

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Varicella-zoster virus

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Varicella and herpes zoster are caused by the same virus.

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Measles is described as a ______ skin lesion.

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S.pyogenes binds to plasminogen and then secretes ______ that creates plasmin that degrades tissue.

Correct AnswerverifiedShow Answer

Impetigo involves itching papules that break and form a very contagious yellow crust.

Correct AnswerverifiedShow Answer

All of the following pertain to measles (rubeola) except

Correct AnswerverifiedShow Answer

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