Question 1

What is the only way to prevent non-neonatal conjunctivitis?

Accepted Answer

A)   Screen pregnant women
B)   Good hygiene
C)   Prophylactic antiviral chemotherapy
D)   Vaccine
E)   Insect repellentF) D) and E)
G) B) and E)

Question 2

If a person who has never been infected with human herpesvirus 3 comes in contact with the fluid of shingles lesions,they will come down with ______.

Accepted Answer

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

Question 3

Chickenpox

Accepted Answer

A)   is transmitted by inhalation of respiratory secretions.
B)   is transmitted by skin lesion contact or airborne spread of lesion material.
C)   has an incubation period of 10 to 20 days.
D)   has fever and vesicular rash that occurs in successive crops.
E)   All of the choices are correct.F) A) and B)
G) A) and C)

Question 4

Mottled,discolored skin pigmentation is observed in patients with tinea versicolor.

Accepted Answer

A) True 
 B)False

Question 5

Chickenpox is caused by an orthopoxvirus.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following is not true of staphylococcal scalded skin syndrome (SSSS) ?

Accepted Answer

A)   It predominantly affects newborns and babies.
B)   It is an exotoxin-mediated disease.
C)   The toxins cause bullous lesions.
D)   The skin splits between the dermis and epidermis.
E)   The skin splits within the epidermis.F) B) and E)
G) A) and D)

Question 7

Which of the following is not true of cellulitis?

Accepted Answer

A)   Surgery may be required for treatment.
B)   Lymphangitis may occur with this infection.
C)   It is caused by S. aureus or S. pyogenes.
D)   It affects the epidermis layer of the skin.
E)   It causes pain, tenderness, swelling, and warmth.F) All of the above
G) A) and B)

Question 8

Which eye disease is characterized by a pannus forming over the cornea?

Accepted Answer

A)   Trachoma
B)   Keratitis
C)   Stye
D)   River blindness
E)   Simple conjunctivitisF) B) and D)
G) B) and E)

Question 9

The causative agent of trachoma is ______.

Accepted Answer

A)  herpes simplex virus type 1 (HSV-1) 
B)  adenovirus
C)  N.gonorrhoeae
D)  S.aureus
E)  C.trachomatisF) A) and C)
G) B) and D)

Question 10

Neonatal conjunctivitis differs from non-neonatal conjunctivitis in that

Accepted Answer

A)   it is transmitted during birth and occurs only in neonates less than 4 weeks old.
B)   neonates have immune privilege, and are therefore more susceptible to all types of infection.
C)   it cannot be prevented as the causative organisms are normal microbiota for the mother.
D)   neonatal conjunctivitis can be caused by Chlamydia trachomatis, Neisseria gonnorhoeae, or any number of viruses.E) A) and C)
F) All of the above

Question 11

The eye generally has a large percentage of normal biota present.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following statements regarding viremia is incorrect?

Accepted Answer

A)   HHV-3 is disseminated to the skin by viremia.
B)   Droplet transmission of viruses like the measles virus results in viremia.
C)   The variola virus multiplies in white blood cells, and cell lysis results in viremia.
D)   Shingles is a manifestation of persistent viremia after a course of chicken pox.E) None of the above
F) A) and D)

Question 13

The toxin of Staphylococcus aureus that causes blisters and desquamation of skin in staphylococcal scalded skin syndrome is ______.

Accepted Answer

A)   enterotoxin
B)   hemolysin
C)   exfoliative toxin
D)   erythrogenic toxin
E)   toxic shock syndrome toxinF) A) and D)
G) A) and C)

Question 14

The two tissues of the eye with exposed surfaces susceptible to contamination are the ______ and the ______.

Accepted Answer

A)   conjunctiva; cornea
B)   conjunctiva; lens
C)   cornea; lens
D)   conjunctiva; iris
E)   cornea; irisF) None of the above
G) B) and E)

Question 15

The smallpox vaccine uses the ______ virus.

Accepted Answer

A)   variola
B)   herpes simplex
C)  Human herpesvirus 6
D)   smallpox
E)   vacciniaF) D) and E)
G) A) and D)

Question 16

Which of the following is not true of measles?

Accepted Answer

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

Question 17

Which of the following statements is incorrect about the MMR vaccine?

Accepted Answer

A)   It is given in early childhood.
B)   It contains toxoids.
C)   It protects against three different viral diseases.
D)   It contains attenuated viruses.E) A) and B)
F) A) and D)

Question 18

Which of the following ocular tissues and infections is mismatched?

Accepted Answer

A)   Conjunctivitis; milky discharge and infection of eyelid lining
B)   River blindness; microfilariae visible in the vitreous chamber
C)   Keratitis; infection of deep eye tissue
D)   Trachoma; infection of epithelial cellsE) A) and C)
F) B) and C)

Question 19

Which of the following skin defenses and its mechanism is mismatched?

Accepted Answer

A)   Antimicrobial peptides; disrupt positively charged bacterial membranes
B)   Sebum; lipid hydrolysis leads to toxic by-products that inhibit microbial growth
C)   Lysozyme; hydrolyzes peptidoglycan in bacterial cell walls
D)   Keratinized surface; protein that provides waterproofingE) B) and D)
F) A) and D)

Question 20

Transmission of tineas include

Accepted Answer

A)   human to human.
B)   animal to human.
C)   soil to human.
D)   All of the choices are correct.E) B) and D)
F) B) and C)

Exam 18: Infectious Diseases Affecting the Skin and Eyes

The two tissues of the eye with exposed surfaces susceptible to contamination are the ______ and the ______.

Correct AnswerverifiedShow Answer

Which eye disease is characterized by a pannus forming over the cornea?

Correct AnswerverifiedShow Answer

The eye generally has a large percentage of normal biota present.

Correct AnswerverifiedShow Answer

Which of the following ocular tissues and infections is mismatched?

Correct AnswerverifiedShow Answer

Which of the following is not true of measles?

Correct AnswerverifiedShow Answer

The smallpox vaccine uses the ______ virus.

Correct AnswerverifiedShow Answer

Which of the following skin defenses and its mechanism is mismatched?

Correct AnswerverifiedShow Answer

Chickenpox is caused by an orthopoxvirus.

Correct AnswerverifiedShow Answer

If a person who has never been infected with human herpesvirus 3 comes in contact with the fluid of shingles lesions,they will come down with ______.

Correct AnswerverifiedShow Answer

Which of the following is not true of staphylococcal scalded skin syndrome (SSSS) ?

Correct AnswerverifiedShow Answer

Mottled,discolored skin pigmentation is observed in patients with tinea versicolor.

Correct AnswerverifiedShow Answer

Which of the following is not true of cellulitis?

Correct AnswerverifiedShow Answer

Transmission of tineas include

Correct AnswerverifiedShow Answer

What is the only way to prevent non-neonatal conjunctivitis?

Correct AnswerverifiedShow Answer

The causative agent of trachoma is ______.

Correct AnswerverifiedShow Answer

Neonatal conjunctivitis differs from non-neonatal conjunctivitis in that

Correct AnswerverifiedShow Answer

Which of the following statements regarding viremia is incorrect?

Correct AnswerverifiedShow Answer

Which of the following statements is incorrect about the MMR vaccine?

Correct AnswerverifiedShow Answer

Chickenpox

Correct AnswerverifiedShow Answer

The toxin of Staphylococcus aureus that causes blisters and desquamation of skin in staphylococcal scalded skin syndrome is ______.

Correct AnswerverifiedShow Answer

The two tissues of the eye with exposed surfaces susceptible to contamination are the and the .

Correct Answer
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