Question 1

Debridement of diseased tissue is important in the care of patients with gas gangrene.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following statements concerning rubella immunization is correct?

Accepted Answer

A)   Administration of the rubella vaccine at 12 to 15 months of age is good protection against congenital rubella.
B)   A pregnant woman who contracts rubella should be immunized to protect her unborn child.
C)   A child born with congenital rubella may be immunized to prevent recurrence of the disease.
D)   The rubella vaccine given in childhood can protect both the child and any children that she may bear in the future.E) A) and D)
F) None of the above

Question 3

Chickenpox is caused by an orthopoxvirus.

Accepted Answer

A) True 
 B)False

Question 4

The main causative agent of gas gangrene is ______.

Accepted Answer

A)   Streptococcus pyogenes
B)   Mycobacterium leprae
C)   Staphylococcus epidermidis
D)   Clostridium perfringens
E)   Staphylococcus aureusF) None of the above
G) B) and C)

Question 5

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) C) and E)
G) None of the above

Question 6

Your child has developed an eye infection with a yellowish discharge. You predict that this is a case of _______.

Accepted Answer

A)   rubella
B)   trachoma
C)   bacterial conjunctivitis
D)   herpes keratitis
E)   helminth infectionF) A) and B)
G) C) and E)

Question 7

Current recommendations in the United States for treatment of MRSA are to use _______.

Accepted Answer

A)   more than one antibiotic
B)   erythromycin and a second antibiotic
C)   any antibiotic other than methicillin
D)   no antibiotics to curb the development of resistance
E)   no antibiotics to allow the immune system to functionF) A) and E)
G) None of the above

Question 8

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 9

Molluscum contagiosum is transmitted by direct contact with skin lesions, fomites, and sexual
activity.

Accepted Answer

A) True 
 B)False

Question 10

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

Accepted Answer

A)   Eyelashes
B)   Tears
C)   Eyelids
D)   Lymphocytes
E)   ConjunctivaF) C) and E)
G) B) and D)

Question 11

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

Accepted Answer

A)   Lysozyme; hydrolyzes peptidoglycan in bacterial cell walls
B)   Sebum; lipid hydrolysis leads to toxic by-products that inhibit microbial growth
C)   Keratinized surface; protein that provides waterprooﬁng
D)   Antimicrobial peptides; disrupt positively charged bacterial membranesE) A) and B)
F) None of the above

Question 12

Streptococcus pyogenes causes all of the following infections except ______.

Accepted Answer

A)   impetigo
B)   necrotizing fasciitis
C)   scalded skin syndrome
D)   erysipelas
E)   scarlet feverF) A) and B)
G) B) and D)

Question 13

To perform the coagulase test on a strain of bacteria that is believed to be S. aureus, the ﬁrst step is to inoculate a tube of ______ with the strain of interest.

Accepted Answer

A)   blood plasma
B)   mannitol salt medium
C)   blood
D)   nutrient brothE) B) and D)
F) B) and C)

Question 14

Microbes are not likely to be found in which of the following locations on human skin?

Accepted Answer

A)   The stratum corneum
B)   Sensory nerve ﬁber in the dermis
C)   Sebaceous gland
D)   Hair follicleE) None of the above
F) A) and B)

Question 15

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

Accepted Answer

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

Question 16

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 labialis
C)   shingles
D)   infectious mononucleosis
E)   herpes keratitisF) B) and D)
G) None of the above

Question 17

Which of the following is the most common form of transmission for impetigo?

Accepted Answer

A)   Mechanical vectors
B)   Direct contact
C)   Body ﬂuids
D)   Blood
E)   FomitesF) D) and E)
G) B) and D)

Question 18

Which microorganism species is most well-adapted to life on the skin?

Accepted Answer

A)   Malassezia
B)   Streptococcus pyogenes
C)   Corynebacterium diphtheriae
D)   Candida albicans
E)   Staphylococcus epidermidisF) A) and B)
G) B) and D)

Question 19

Which of the following statements about blisters is correct?

Accepted Answer

A)   Blisters originate in the dermis.
B)   Blisters result from a separation of epidermis from dermis.
C)   Blisters originate in the subcutaneous layer.
D)   Blisters are conﬁned to the epidermis.E) None of the above
F) A) and B)

Question 20

Neonatal conjunctivitis differs from non-neonatal conjunctivitis in that ________.

Accepted Answer

A)   neonates have immune privilege, and are therefore more susceptible to all types of infection
B)   it is transmitted during birth and occurs only in neonates less than four weeks old
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 virusesE) All of the above
F) None of the above

Exam 18: Infectious Diseases Affecting the Skin and Eyes

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

The main causative agent of gas gangrene is ______.

Correct AnswerverifiedShow Answer

Debridement of diseased tissue is important in the care of patients with gas gangrene.

Correct AnswerverifiedShow Answer

Your child has developed an eye infection with a yellowish discharge. You predict that this is a case of _______.

Correct AnswerverifiedShow Answer

Current recommendations in the United States for treatment of MRSA are to use _______.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following statements concerning rubella immunization is correct?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Chickenpox is caused by an orthopoxvirus.

Correct AnswerverifiedShow Answer

Which microorganism species is most well-adapted to life on the skin?

Correct AnswerverifiedShow Answer

Molluscum contagiosum is transmitted by direct contact with skin lesions, fomites, and sexual activity.

Correct AnswerverifiedShow Answer

Which of the following is the most common form of transmission for impetigo?

Correct AnswerverifiedShow Answer

Which of the following statements about blisters is correct?

Correct AnswerverifiedShow Answer

Chickenpox _______.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Neonatal conjunctivitis differs from non-neonatal conjunctivitis in that ________.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Microbes are not likely to be found in which of the following locations on human skin?

Correct AnswerverifiedShow Answer

To perform the coagulase test on a strain of bacteria that is believed to be S. aureus, the ﬁrst step is to inoculate a tube of ______ with the strain of interest.

Correct AnswerverifiedShow Answer

Streptococcus pyogenes causes all of the following infections except ______.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified