Nester's Microbiology: A Human Perspective

Denise Anderson, Sarah Salm, Deborah Allen

Chapter 22

Skin Infections - all with Video Answers

Educators

Chapter Questions

Problem 1

Which of the following conditions is important in the ecology of the skin?
a) Temperature
b) Salt concentration
c) Lipids
d) pH
e) All of the above

Joanna Quigley

Joanna Quigley

Numerade Educator

Problem 2

Staphylococcus aureus can be responsible for all of the following conditions except
a) impetigo.
b) food poisoning.
c) toxic shock syndrome.
d) scalded skin syndrome.
e) athlete's foot.

Joanna Quigley

Numerade Educator

Problem 3

The main effect of staphylococcal protein A is to
a) interfere with phagocytosis.
b) enhance the attachment of the Fc portion of antibody to phagocytes.
c) coagulate plasma.
d) kill white blood cells.
e) degrade collagen.

Joanna Quigley

Numerade Educator

Problem 4

Which of the following contributes to the virulence of Streptococcus pyogenes?
a) Protease
b) Hyaluronidase
c) DNase
d) All of the above
e) None of the above

Joanna Quigley

Numerade Educator

Problem 5

Which of the following statements is true of streptococcal impetigo?
a) It is caused by a Gram-negative rod.
b) It cannot be transmitted from one person to another.
c) Pathogenic streptococci all produce coagulase.
d) All of the above.
e) None of the above.

Joanna Quigley

Numerade Educator

Problem 6

All of the following are true of Rocky Mountain spotted fever
except
a) the disease is most prevalent in the western United States.
b) it is caused by an obligate intracellular bacterium.
c) it is a zoonosis transmitted to humans by ticks.
d) those with the disease characteristically develop a hemorrhagic rash.
e) antibiotic therapy is usually curative if given early in the disease.

Joanna Quigley

Numerade Educator

Problem 7

All of the following are true of Lyme disease except
a) it is caused by a spirochete.
b) it is transmitted by certain species of ticks.
c) it occurs only in the region around Lyme, Connecticut
d) most cases get a rash that looks like a target.
e) it can cause heart and nervous system damage.

Joanna Quigley

Numerade Educator

Problem 8

Which of the following statements is more likely to be true of measles (rubeola) than German measles (rubella)?
a) Koplik spots are present.
b) It causes birth defects.
c) It causes only a mild illness.
d) Humans are the only natural host.
e) Attenuated virus vaccine is available for prevention.

Joanna Quigley

Numerade Educator

Problem 9

All of the following must be cultivated in cell cultures instead of cell-free media except
a) Rickettsia rickettsii.
b) rubella virus.
c) varicella-zoster virus.
d) Borrelia burgdorferi
e) rubeola virus.

Joanna Quigley

Numerade Educator

Problem 10

All of the following might contribute to development of ringworm or other superficial cutaneous mycoses except
a) obesity.
b) playing with kittens.
c) rubber boots.
d) using skin powder.
e) dermatophyte virulence.

Joanna Quigley

Numerade Educator