skin infections

Question 1

bacterial infections

Answer 1

• boils (furuncles)
• carbuncles
• cellulities
• impetigo
• leprosy
• lyme disease
• staph and strep
• syphilis

Question 2

fungal

Answer 2

• ringworm
• candidiasis
• oral thrush

Question 3

parasitic

Answer 3

-lice

Question 4

viral

Answer 4

• molluscum contagiosum
• shingles
• chicken pox
• warts
• measles
• h/f/m disease

Question 5

degree of hair follicle infection

Answer 5

folliculitis => furuncles (boils) => carbuncles

Question 6

major skin infection pathogen

Answer 6

staph aureus

Question 7

virulence factors of staph aureus and s pyogenes

Answer 7

• cell wall and capsule components
• enzymes, toxins, hemolysins
• s aureus has protein A

Question 8

dental procedure prophy can be

Answer 8

a risk factor for s aureus infection

Question 9

MRSA

Answer 9

-hospital acquired (nosocomial)

Question 10

the 5 C’s with ca-mrsa

Answer 10

• Crowding
• frequent skin Contact
• Compromised skin
• sharing Contaminated personal care items
• lack of Cleanliness

Question 11

at risk of ca-mrsa

Answer 11

-children < 2 years old
-minority pop
-athletes contact sports
-injection drug users
etc.

Question 12

impetigo

Answer 12

• Group A strep (GAS)
• s aureus
• children 2-5 years
• face and legs

Question 13

erysipelas

Answer 13

• GAS
• infants and >30 years
• face

Question 14

cellulitis

Answer 14

• subcutaneous tissue
• GAS
• S aureus

Question 15

another name for GAS

Answer 15

strep pyogenes

Question 16

GAS

Answer 16

• beta hemolytic
• catalase NEGATIVE
• s aureus is catalase +

Question 17

GAS is sensitive to

Answer 17

penicillin

Question 18

predisposing factors for s pyogens

Answer 18

• age
• exposure to children
• # people in home
• HIV
• chronic diseases
• injection drug
• alcoholism
• cortico use
• indigenous ppl

Question 19

syndromes that are secondary to local skin infections

Answer 19

• staph scalded skin syndrome (SSSS)

- toxic shock syndrome (TSS)

Question 20

SSSS

Answer 20

• exfoliatin toxin from S aureus
• infants and children
• skin-burn-like rash

Question 21

Staphylococcal TSS

Answer 21

• 95% cases in young women
• menstruation, tampon use, surgery, child birth, abortion
• red, sunburn-like rash
• vaginal discharge

Question 22

streptococcal TSS

Answer 22

• any age group
• minor injury
• petechiae rash
• effects soft tissue (fascilitis, myositis, cellulitis), pharyngitis

Question 23

pathogens that cause a skin infection secondary to bloodstream infection

Answer 23

• s aureus
• s pyogens
• pseudomonas aeroginosa
• treponema pallidum
• borreliella

Question 24

s aureus

Answer 24

• tss
• scalded skin syndrome
• janeway lesions
• scarlet fever (tongue, face)

Question 25

s pyogens

Answer 25

• tss

- scarlet fever *strawberry tongue

Question 26

pseudomonas aeruginosa

Answer 26

-ecthyma gangrnosum (black ulcers)

Question 27

treponema pallidum

Answer 27

syphilis (genital for primary, oral for secondary)

Question 28

borreliella burgdorferi

Answer 28

-lyme disease

Question 29

ringworm

Answer 29

• moist skin
• immunodeficiency
• extremely common

Question 30

molluscum contagiosum

Answer 30

• viral (pox virus)
• “water warts”
• highly contagious

Question 31

warts (verrucae vulgaris)

Answer 31

• hard growths
• extremely common
• human pappillomavirus

Question 32

hand food and mouth disease

Answer 32

• painful, blister-like lesions
• cheek, gingiva, tongue
• outbreaks in childcare centers
• spread by oral ingestion of virus
• coxsackie virus A16

Question 33

chicken pox (varicella)

Answer 33

• vaccine
• highly contagious
• cause by varicella zoster virus (vsv)

Question 34

shingles

Answer 34

• also caused by vsv
• dormant after chicken pox
• 5 year vaccine
• chicken pox but more painful

Question 35

measles (rubeola)

Answer 35

• koplik’s spots oon inner cheeks
• highly contagious
• measles virus