Question 1

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

Accepted Answer

A)   Keratin
B)   Lysozyme
C)   Sweat
D)   Sebum
E)   SaltF) C) and D)
G) D) and E)

Question 2

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

Accepted Answer

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

Question 3

Measles is described as a ______ skin lesion.

Accepted Answer

A)   macule
B)   maculopapular
C)   vesicular
D)   pustular
E)   bullaF) A) and B)
G) C) and E)

Question 4

The integument includes all of the following except ______.

Accepted Answer

A)   sweat glands
B)   skin
C)   nails
D)   surface capillaries
E)   hairF) A) and B)
G) A) and E)

Question 5

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

Question 6

Cutaneous anthrax is _______.

Accepted Answer

A)   seen in epidemic proportions in the United States
B)   transmitted by contact
C)   found only in humans
D)   a high mortality diseaseE) None of the above
F) A) and B)

Question 7

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

Accepted Answer

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

Question 8

The enzyme that clots plasma is ______.

Accepted Answer

A)   hyaluronidase
B)   catalase
C)   kinase
D)   staphylokinase
E)   coagulaseF) B) and D)
G) A) and B)

Question 9

Impetigo can be caused by either Staphylococcus aureus or Streptococcus pyogenes. Culture- based identiﬁcation of the causative organism can be complicated by _______.

Accepted Answer

A)   their common optimal growth temperature, 37°C
B)   the fastidious nature of both organisms
C)   the ability of S. aureus to kill S. pyogenes
D)   the common surface antigens of these two organismsE) A) and D)
F) A) and C)

Question 10

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

Accepted Answer

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

Question 11

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) A) and B)
G) A) and C)

Question 12

Occassionally, Staphylococcus epidermidis may be isolated from the eye.

Accepted Answer

A) True 
 B)False

Question 13

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

Accepted Answer

A)   It secretes streptokinase.
B)   It coats itself with host proteins.
C)   It causes impetigo.
D)   It is often spread from an endogenous source.
E)   It causes gas gangrene.F) None of the above
G) A) and C)

Question 14

Which of the following statements is correct regarding rubella?

Accepted Answer

A)   It is not preventable by a vaccine.
B)   It manifests as high fever, severe sore throat, severe cough, and myalgia.
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) C) and D)
F) B) and D)

Question 15

Which of the following is not true of cellulitis?

Accepted Answer

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

Question 16

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)   Smallpox
C)   Rubella
D)   Shingles
E)   ImpetigoF) B) and E)
G) None of the above

Question 17

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)   in the presence of lysozyme, as found in tears, the proteins form a protective barrier on the lens
C)   pathogens with magnetosomes will be segregated from the eye tissue and swept away by the tears
D)   free iron serves as an immune signal to recruit T cells to the eyeE) None of the above
F) All of the above

Question 18

The disease pathogenesis seen in river blindness is caused by ______.

Accepted Answer

A)   Wolbachia bacteria
B)   Onchocerca volvulus worms
C)   a blood ﬂuke
D)   herpes simplex virus type 1 (HSV-1) 
E)   Both Wolbachia and Onchocerca volvulus are correct.F) A) and B)
G) C) and E)

Question 19

Considering the diseases and conditions described in this chapter, those transmitted by respiratory droplets are caused by ______.

Accepted Answer

A)   viruses
B)   bacteria
C)   fungi
D)   All of these choices are correct.E) A) and C)
F) All of the above

Question 20

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

Accepted Answer

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

Exam 18: Infectious Diseases Affecting the Skin and Eyes

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

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

Correct AnswerverifiedShow Answer

Cutaneous anthrax is _______.

Correct AnswerverifiedShow Answer

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

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

Correct AnswerverifiedShow Answer

The enzyme that clots plasma is ______.

Correct AnswerverifiedShow Answer

The integument includes all of the following except ______.

Correct AnswerverifiedShow Answer

Which of the following is not true of cellulitis?

Correct AnswerverifiedShow Answer

Which of the following statements is correct regarding rubella?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Measles is described as a ______ skin lesion.

Correct AnswerverifiedShow Answer

Human herpesvirus 3 (HHV-3) _______.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The disease pathogenesis seen in river blindness is caused by ______.

Correct AnswerverifiedShow Answer

Occassionally, Staphylococcus epidermidis may be isolated from the eye.

Correct AnswerverifiedShow Answer

Considering the diseases and conditions described in this chapter, those transmitted by respiratory droplets are caused by ______.

Correct AnswerverifiedShow Answer

Impetigo can be caused by either Staphylococcus aureus or Streptococcus pyogenes. Culture- based identiﬁcation of the causative organism can be complicated by _______.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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