Question 1

Infections caused by Staphylococcus aureus include all of the following except ______.

Accepted Answer

A)  carbuncles
B)  scalded skin syndrome
C)  chickenpox
D)  meningitis
E)  impetigoF) None of the above
G) B) and D)

Question 2

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) B) and C)
F) A) and D)

Question 3

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

Accepted Answer

A) True 
 B)False

Question 4

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) A) and B)
F) B) and D) D

Question 5

Among the natural defenses present in tears is the protein lactoferrin.As you can infer from its name, it is also present in milk and other body secretions, and its function involves binding iron ions.The presence of lactoferrin in tears is protective against bacterial infection because

Accepted Answer

A)  all pathogens must acquire iron from their environment and lactoferrin ensures that the iron concentration is low.
B)  pathogens with magnetosomes will be segregated from the eye tissue and swept away by the tears.
C)  in the presence of lysozyme, as found in tears, the proteins form a protective barrier on the lens.
D)  free iron serves as an immune signal to recruit T cells to the eye.E) All of the above
F) A) and D)

Question 6

Many gyms are abundantly supplied with towels and antimicrobial sprays for wiping down equipment after each user.The reason for this is to cut down on the transmission of ______.

Accepted Answer

A)  athlete's foot fungus
B)  skin microbes like MRSA
C)  measles virus
D)  shingles
E)  ringwormF) A) and C)
G) D) and E)

Question 7

Smallpox is a disease in which

Accepted Answer

A)  fever, malaise, and rash occur.
B)  the virus becomes latent in ganglia of sensory neurons.
C)  recurrent episodes are called shingles.
D)  transmission occurs by direct contact with skin crusts.
E)  All of the choices are correct.F) C) and D)
G) None of the above

Question 8

Keratitis is usually caused by ______.

Accepted Answer

A)  Streptococcus pyogenes
B)  Staphylococcus aureus
C)  Neisseria gonorrhoeae
D)  herpes simplex virus type 1 (HSV-1) E) B) and C)
F) None of the above

Question 9

Which of the following statements is incorrect regarding the effects of rubella and rubeola in different populations?

Accepted Answer

A)  Infection during pregnancy with either of these viruses can cause serious injury to the fetus.
B)  A 30-year-old man infected with rubella will experience severe symptoms and require constant medical attention for several weeks.
C)  A six-year-old child infected with rubeola will experience fever, cough, and a rash, and barring complications, should recover in a few weeks.
D)  Congenital rubella is least serious if it is contracted during the final trimester of pregnancy.E) A) and B)
F) A) and C)

Question 10

Which of the following statements regarding vaccines as disease preventatives is incorrect?

Accepted Answer

A)  Zostavax is recommended for older adults to prevent shingles.
B)  The Carter Center has promoted the development of a vaccine against river blindness.
C)  There is currently no smallpox vaccine available to the general public.
D)  Immunization is currently not possible against Clostridium perfringens.E) All of the above
F) B) and D) B

Question 11

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 E)
G) A) and C)

Question 12

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) D) and E)
G) B) and E)

Question 13

Leishmaniasis is transmitted through the bite of a(n)  ______.

Accepted Answer

A)  Anopheles mosquito
B)  tsetse fly
C)  hard-bodied tick
D)  sand fly
E)  reduviid "kissing" bugF) B) and C)
G) A) and B)

Question 14

Diseases that manifest as skin rashes are transmitted through direct contact with affected individuals or with fomites.

Accepted Answer

A) True 
 B)False

Question 15

Human herpesvirus 3 (HHV-3)

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) None of the above
G) All of the above

Question 16

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) A) and C)
F) A) and B)

Question 17

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) C) and D)
G) B) and E) C

Question 18

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) B) and C)
F) None of the above

Question 19

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

Question 20

Staphylococcus can be differentiated from Streptococcus by the ______.

Accepted Answer

A)  Gram stain
B)  catalase test
C)  fermentation of mannitol
D)  coagulase test
E)  cellular morphologyF) C) and E)
G) A) and E)

Exam 18: Infectious Diseases Affecting the Skin and Eyes

Infections caused by Staphylococcus aureus include all of the following except ______.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following statements regarding viremia is incorrect?

Correct AnswerverifiedD

Among the natural defenses present in tears is the protein lactoferrin.As you can infer from its name, it is also present in milk and other body secretions, and its function involves binding iron ions.The presence of lactoferrin in tears is protective against bacterial infection because

Correct AnswerverifiedShow Answer

Many gyms are abundantly supplied with towels and antimicrobial sprays for wiping down equipment after each user.The reason for this is to cut down on the transmission of ______.

Correct AnswerverifiedShow Answer

Smallpox is a disease in which

Correct AnswerverifiedShow Answer

Keratitis is usually caused by ______.

Correct AnswerverifiedShow Answer

Which of the following statements is incorrect regarding the effects of rubella and rubeola in different populations?

Correct AnswerverifiedShow Answer

Which of the following statements regarding vaccines as disease preventatives is incorrect?

Correct AnswerverifiedB

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

Correct AnswerverifiedShow Answer

Which of the following statements about measles is incorrect?

Correct AnswerverifiedShow Answer

Leishmaniasis is transmitted through the bite of a(n) ______.

Correct AnswerverifiedShow Answer

Diseases that manifest as skin rashes are transmitted through direct contact with affected individuals or with fomites.

Correct AnswerverifiedShow Answer

Human herpesvirus 3 (HHV-3)

Correct AnswerverifiedShow Answer

Which of the following statements is correct regarding rubella?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedC

Which of the following statements regarding eye infections is correct?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Staphylococcus can be differentiated from Streptococcus by the ______.

Correct AnswerverifiedShow Answer

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D

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B

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C

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