Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Microbiology Exam Two > Microbial Diseases Of Skin And Wounds Pt. 1 > Flashcards

Microbial Diseases Of Skin And Wounds Pt. 1 Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
0
Q

What is the term for a small abscess?

A

Pimple (not the acne kind)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
1
Q

What is a pus-filled pocket in the skin resulting from bacterial infection that can occur on the surface or within deeper structures of the skin?

A

Abscess

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What type of abscess is a large, painful, raised nodular extension of folliculitis into surrounding tissue?

A

Furuncle or boil

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the term for a coalescence of several furuncles that can extend into deep tissues and possibly involve the organ systems?

A

Carbuncle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is a type of skin abscess that involves the hair follicle?

A

Folliculitis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is an abscess at the eyelid base?

A

Sty

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are the symptoms of abscesses?

A

Red, itching, burning, drainage of either blood or pus (or both)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What genus of pathogens is most commonly the cause of abscesses/folliculitis?

A

Staphylococcus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What two species are commonly found on the skin and can be involved with abscesses?

A

Staphylococcus epidermidis and staphylococcus aureus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the most predominant pathogen on the skin?

A

Staphylococcus epidermidis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Which pathogen is most likely to be the the cause of infection for abscesses/folliculitis even though it isn’t the most predominant one on the skin?

A

Staphylococcus aureus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

How are abscesses typically acquired?

A

Direct contact/fomites, often auto-inoculation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the diagnosis for abscesses?

A

Isolation of bacteria in grape-like clusters from pus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the treatment for abscesses?

A

May heal on its own in about two weeks, but warm compresses can help with itching, swelling and natural draining. Medical intervention would involve professional draining or antibiotics.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

How can abscesses be prevented?

A

Hand washing, proper procedures in hospitals to minimize MRSA infections

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What pathogen causes “hot tub folliculitis”?

A

Pseudomonas aeruginosa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What activity can cause “hot tub folliculitis” to develop?

A

After using a poorly chlorinated hot tub or spa (appears 6 hours-5 days after)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What are signs of “hot tub folliculitis”?

A

Many small “pimples” on stomach, buttocks, arms, and legs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Can “hot tub folliculitis” self-resolve?

A

Yes, in about 7-10 days

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What are the signs and symptoms of staphylococcal scalded skin syndrome?

A

Reddening of the skin beginning near the mouth and spreading over the entire body, eventual large blisters where (after about 2 days) outer layer of skin falls off in sheets

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What is unique about the blisters formed in staphylococcal scalded skin syndrome?

A

Lacks white blood cells and bacteria

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What is a huge risk for those with staphylococcal scalded skin syndrome once the outer layer of skin has fallen off?

A

Risk for secondary bacterial infections

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What is the pathogen usually to blame for staphylococcal scalded skin syndrome?

A

Some staphylococcus aureus strains

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Staphylococcal scalded skin syndrome is more likely to affect what population?

A

Infants

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What disease can be largely mistaken for child abuse due to the appearance of blisters and the entire body appearing like it was dipped in boiling water?

A

Staphylococcal scalded skin syndrome

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

How is staphylococcal scalded skin syndrome usually transmitted?

A

Person to person contact

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

What is the diagnosis for staphylococcal scalded skin syndrome?

A

Sloughing of the skin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

What is the treatment for staphylococcal scalded skin syndrome?

A

Administration of IV antibiotics usually requiring hospitalization in the burn unit

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Why is prevention of staphylococcal scalded skin syndrome difficult?

A

Large presentation of staphylococcus strains on the skin naturally

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

What are the signs and symptoms of impetigo?

A

Small, flattened red patches on face and limbs that develop into pus-filled vesicles that crust

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

What is another name for impetigo?

A

Pyoderma (pyo- = fiery)

31
Q

What skin condition involves pus filled vesicles affecting the top layers of the skin?

A

Impetigo

32
Q

What is the composition of the pus involved with impetigo?

A

Filled with bacteria and white blood cells (compare to those of staphylococcal scalded skin syndrome)

33
Q

What are the signs and symptoms for erysipelas?

A

Hot, red skin with a fiery red rash with raised borders

34
Q

What is the most common location for erysipelas?

A

Legs (80%)

35
Q

What pathogen causes 80% of the cases of impetigo?

A

Staphylococcus aureus

36
Q

What pathogen causes 80% of the cases of erysipelas?

A

Streptococcus pyogenes

37
Q

What is the peak age of incidence of erysipelas?

A

Ages 60-80 (elderly)

38
Q

What three groups are more likely to develop erysipelas?

A

Infants, young children, and elderly (compromised immune systems)

39
Q

What pathogen causes 20% of erysipelas?

A

Staphylococcus aureus

40
Q

What pathogen causes 20% of impetigo?

A

Streptococcus pyogenes

41
Q

What is the clinical term for the flesh-eating disease?

A

Necrotizing fasciitis

42
Q

What organism is responsible for necrotizing fasciitis and is known as the “flesh-eating bacteria”?

A

Streptococcus pyogenes

43
Q

What very serious condition involves streptococci entering the body through breaks in the skin that secrete enzymes and toxins destroy tissue?

A

Necrotizing fasciitis

44
Q

What is the fatality rate for necrotizing fasciitis?

A

Over 50%

45
Q

What are some signs of necrotizing fasciitis?

A

Big purplish-red blisters that eventually destroy muscle and fat tissue

46
Q

How is necrotizing fasciitis usually spread?

A

Person to person via breaks in the skin

47
Q

How is necrotizing fasciitis treated?

A

IV antibiotics and can often lead to amputation surgery

48
Q

Why is early diagnosis of necrotizing fasciitis difficult?

A

Symptoms are nonspecific

49
Q

Necrotizing fasciitis travels along what structure of the body during its course of destroying tissue?

A

Along fascia

50
Q

What is a pustule?

A

A blister-like area full of pus common with severe cases of acne

51
Q

What is the organism responsible for acne?

A

Propionibacterium acnes

52
Q

Acne is seen among what percent of adolescents and young adults?

A

85%

53
Q

Why is acne so common?

A

The pathogen responsible for it is a part of normal microbiota

54
Q

What is a long term treatment for acne?

A

Tetracycline

55
Q

What are the signs and symptoms of Cat Scratch Disease?

A

Bump (papule) or blister (pustule) at the site of injury as a first sign followed by lymphadenopathy near the area, fatigue, fever, headache, malaise

56
Q

What is the pathogen responsible for Cat Scratch Disease?

A

Bartonella henselae

57
Q

How is Cat Scratch Disease transmitted?

A

Cat bites or scratches

58
Q

How is Cat Scratch Disease diagnosed and treated?

A

Serological testing, treated with antibiotics

59
Q

What substance is to blame for the tissue damage associated with Pseudomonas infection?

A

Production of pyocyanin (blue-green in color)

60
Q

What are the signs and symptoms of Pseudomonas infections?

A

Fever, chills, and the production of purulent matter in infected wounds

61
Q

A population of individuals with what other ailment are more at risk for Pseudomonas infections?

A

Severe burns (2/3 of burn victims)

62
Q

What is the most common causative agent of Pseudomonas infection?

A

Pseudomonas aeruginosa

63
Q

Where can Pseudomonas aeruginosa be found?

A

Soil, decaying matter, moist environments

64
Q

Why is Pseudomonas infection difficult to treat?

A

Due to multidrug resistance of Pseudomonas aeruginosa

65
Q

How can Pseudomonas infection be diagnosed?

A

Only at the severe stages when pyocyanin discoloration occurs indicating massive infection

66
Q

What are the signs and symptoms of Rocky Mountain Spotted Fever that develop a week after infection?

A

Flu like symptoms, followed by a non-itchy spotted rash on trunk and appendages, soles and palms (90% of infected individuals), petechiae in 50%

67
Q

Severe cases of Rocky Mountain Spotted Fever develop what adverse conditions?

A

Respiratory, CNS, GI, and renal system failure

68
Q

What is the pathogen responsible for Rocky Mountain Spotted Fever?

A

Rickettsia rickettsii

69
Q

What is the most severe and most common Ricketsial illness?

A

Rocky Mountain Spotted Fever

70
Q

What is the reservoir for Rickettsia rickettsii?

A

Rodents

71
Q

What is the vector responsible for the transmission to humans of Rickettsia rickettsii?

A

Tick (bites)

72
Q

When are cases of Rocky Mountain Spotted Fever usually reported to the CDC?

A

During the summer (peak in June and July)

73
Q

What is the fatality rate for Rocky Mountain Spotted Fever?

A

5% with or without treatment

74
Q

What is the treatment for Rocky Mountain Spotted Fever?

A

Removal of the tick (preferably before 24 hours) and antibiotics

Microbiology Exam Two (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions