Question 1

Which of the following statements about measles is incorrect?

Accepted Answer

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

Question 2

River blindness is

Accepted Answer

A)   endemic in Australia, New Zealand, and South Pacific islands.
B)   preventable by a vaccine administered to travelers.
C)   transmitted by mosquito vector.
D)   a disease caused by helminths invading the eyes.E) A) and B)
F) A) and C)

Question 3

Eyes are relatively vulnerable to infection because

Accepted Answer

A)   they are not covered by keratinized epithelium.
B)   immune privilege restricts access to the cells conferring innate immunity.
C)   there is scant normal microbiota to serve a protective role.
D)   All of these answers are correct.E) A) and B)
F) A) and C)

Question 4

Which of the following statement(s) is/are correct regarding fifth disease?

Accepted Answer

A)   It is caused by Parvovirus B19.
B)   It is a childhood febrile disease characterized by a red rash on the cheeks.
C)   The causative agent is capable of crossing the placenta.
D)   It is characterized by a maculopapular rash that lasts for days to weeks.
E)   All of the choices are correct.F) B) and C)
G) B) and D)

Question 5

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

Accepted Answer

A)   herpes keratitis
B)   bacterial conjunctivitis
C)   helminth infection
D)   rubella
E)   trachomaF) A) and E)
G) A) and D)

Question 6

Which of the following statements is correct regarding rubella?

Accepted Answer

A)   It manifests as high fever, severe sore throat, severe cough, and myalgia.
B)   It is not preventable by a vaccine.
C)   It is associated with congenital transmission causing miscarriage, deafness, and cardiac and mental defects in the infant.
D)   It is caused by the measles virus (Morbillivirus) .E) B) and D)
F) None of the above

Question 7

Which of the following statements does not pertain to Streptococcus pyogenes?

Accepted Answer

A)   It causes gas gangrene.
B)   It secretes streptokinase.
C)   It is often spread from an endogenous source.
D)   It coats itself with host proteins.
E)   It causes impetigo.F) B) and D)
G) D) and E)

Question 8

Necrotizing fasciitis is

Accepted Answer

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

Question 9

Which of the following is a febrile disease characterized by a rash and is caused by a virus that can cross the placenta to cause serious fetal damage?

Accepted Answer

A)   Measles
B)   Impetigo
C)   Shingles
D)   Smallpox
E)   RubellaF) A) and D)
G) A) and C)

Question 10

In a recent surgery,when the cut area was sutured,bacteria entered the open tissue.As a result,you now have an infection of deep tissue exhibiting redness,swelling,pain,fever,and a rash.With your knowledge of microbiology,you predict that you have a developed an infection caused by ______.

Accepted Answer

A)   Neisseria
B)   human herpesvirus 3
C)  E.coli
D)   StaphylococcusE) C) and D)
F) A) and B)

Question 11

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

Accepted Answer

A) True 
 B)False

Question 12

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 13

Oral lesions called Koplik's spots are seen in patients with ______.

Accepted Answer

A)   croup
B)   measles
C)   influenza
D)   rubella
E)   mumpsF) C) and D)
G) B) and E)

Question 14

Which of the following statements regarding eye infections is correct?

Accepted Answer

A)   Immune privilege restricts virtually all microbes from the tissues of the eye.
B)   Inflammation occurs in most eye infections and serves to initiate repair of the damaged tissue.
C)   Lysozyme in tears targets the gram-negative microbes that contact the eye.
D)   Eye infections may be opportunistic infections by the normal microbiota of the eye.E) A) and D)
F) A) and B)

Question 15

Current recommendations for the treatment of MRSA infections in the United States will change based on

Accepted Answer

A)   patterns of antibiotic resistance.
B)   the cost of different antibiotics.
C)   the availability of different antibiotics.
D)   congressional approval.E) None of the above
F) B) and C)

Question 16

Which of the following is not true of bacterial conjunctivitis?

Accepted Answer

A)   It can be caused by S. pyogenes or S. pneumoniae.
B)   Infection produces a clear discharge from the eye.
C)   It can be transmitted through both direct and indirect contact.
D)   Treatment is with a broad-spectrum topical antibiotic.E) A) and B)
F) A) and C)

Question 17

Protective features of the skin include all of the following except ______.

Accepted Answer

A)   high pH
B)   high salt content
C)   lysozyme
D)   a keratinized surface
E)   resident biotaF) A) and D)
G) C) and D)

Question 18

The environment of human skin requires an adaptation for microbes that can tolerate moderately ______ conditions.

Accepted Answer

A)   alkaline
B)   thermophilic
C)   halophilic
D)   anaerobic
E)   psychrophilicF) All of the above
G) None of the above

Question 19

Which of the following is the causative agent of tinea versicolor?

Accepted Answer

A)   Epidermophyton
B)   Microsporum
C)   Malassezia
D)   TrichophytonE) All of the above
F) A) and C)

Question 20

In the skin,blood vessels are found in the ______.

Accepted Answer

A)   dermis and subcutaneous layers
B)   dermis
C)   stratum corneum
D)   subcutaneous layer
E)   stratum basaleF) A) and C)
G) A) and B)

Exam 18: Infectious Diseases Affecting the Skin and Eyes

In the skin,blood vessels are found in the ______.

Correct AnswerverifiedShow Answer

Current recommendations for the treatment of MRSA infections in the United States will change based on

Correct AnswerverifiedShow Answer

Necrotizing fasciitis is

Correct AnswerverifiedShow Answer

Which of the following statements does not pertain to Streptococcus pyogenes?

Correct AnswerverifiedShow Answer

In a recent surgery,when the cut area was sutured,bacteria entered the open tissue.As a result,you now have an infection of deep tissue exhibiting redness,swelling,pain,fever,and a rash.With your knowledge of microbiology,you predict that you have a developed an infection caused by ______.

Correct AnswerverifiedShow Answer

Oral lesions called Koplik's spots are seen in patients with ______.

Correct AnswerverifiedShow Answer

Which of the following statements is correct regarding rubella?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following statements regarding eye infections is correct?

Correct AnswerverifiedShow Answer

Protective features of the skin include all of the following except ______.

Correct AnswerverifiedShow Answer

Which of the following statement(s) is/are correct regarding fifth disease?

Correct AnswerverifiedShow Answer

Which of the following statements about measles is incorrect?

Correct AnswerverifiedShow Answer

River blindness is

Correct AnswerverifiedShow Answer

Which of the following is a febrile disease characterized by a rash and is caused by a virus that can cross the placenta to cause serious fetal damage?

Correct AnswerverifiedShow Answer

Eyes are relatively vulnerable to infection because

Correct AnswerverifiedShow Answer

Which of the following is not true of bacterial conjunctivitis?

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

Which of the following is the causative agent of tinea versicolor?

Correct AnswerverifiedShow Answer

The environment of human skin requires an adaptation for microbes that can tolerate moderately ______ conditions.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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