Bacterial Infections Flashcards Preview

Pathology 2: Skin Pathology > Bacterial Infections > Flashcards

Flashcards in Bacterial Infections Deck (25):
1

__________ - is a skin disorder caused by bacterial infection and characterized by crusting skin lesions. It is a common skin infection.

Impetigo

2

True or False:

Impetigo may follow a recent upper respiratory infection, such as a cold or other viral infection. More superficial, involving infection of the top layers of the skin with streptococcus (strep), staphylococcus (staph), or both.

True

3

What age group Impetigo is most common?

children

4

What is the symptoms of Impetigo?

begins as an itchy, red sore that blisters, oozes and finally becomes covered with a tightly adherent crust.

5

True regarding Impetigo. Except:

1. It tends to grow and spread

2. Impetigo is not contagious

3. The infection is carried in the fluid that oozes from the blisters.

4. Rarely, impetigo may form deeper skin ulcers.

Except: 2

Impetigo is  contagious

6

It is an inflammation of one or more hair follicles. The condition may occur anywhere on the skin. Can be superficial or deep.

Folliculitis

7

What are the causes of Folliculitis? 

 when hair follicles are damaged by friction from clothing

blockage of the follicle, or shaving.

 

8

In most cases of folliculitis, What bacteria is responsible?

staphylococcus

9

___________ -  is a staph infection of the hair follicles in the beard area of the face, usually the upper lip. Shaving aggravates the condition. 

Barber's itch

10

What are the symptoms  of Folliculitis?


 

Common symptoms include a rash, itching and pimples or pustules near a hair follicle in the neck, groin, or genital area. The pimples may crust over.

11

_________ -  is a skin infection involving an entire hair follicle and nearby skin tissue. It is a type of deep folliculitis.
 

Furuncle

12

Furuncle is also known as:

Boil or Stye

13

Furuncles may occur in the hair follicles,
anywhere on the body. What areas are most common? 

 face, neck, armpit, buttocks and thighs.

14

What are the signs and symptoms of furuncles?

 

 

 

red tender nodule

Water filled balloon- like nodule

pus when furuncle is open

Painful ( ear canal or nose furuncles )

 

15

Furuncles are generally caused by:  
 

staphylococcus aureus, but they may be caused by other bacteria or fungi.

16

 Furuncles that develop close together may expand and join, causing a condition called:

 carbunculosis

17

What are the complications of furuncles?

  • Spread of infection to other parts of the body or skin surfaces
  • Abscess formation
  • Sepsis (general internal infection)
  •  Abscess of kidneys or other internal organs
  • Osteomyelitis
  • Endocarditis
  • Brain infection
  • Brain abscess
  • Spinal cord infection
  • Spinal cord abscess
  • Permanent scarring 

18

__________ -  is a type of cellulitis generally caused by group A streptococcus bacteria. May affect both children and adults. 

Erysipelas

19

________ -  is a common, potentially serious bacterial skin infection. Appears as a swollen, red area of skin that feels hot and tender and it may spread rapidly. 

Cellulitis

20

What are the risk factors associated with Erysipelas infection?
 

  1. cut in the skin
  2. skin ulcers
  3. problems with the drainage through the veins or lymph system. 

21

In the past, the face was the most commonly involved site of infection, yet now accounts for only up to _______  of cases. The legs are affected in up to ______ of cases. 

20%

80%

22

What are the symptoms of Erysipelas?

 

•   Skin lesion with a raised border with map-like erythema (well-demarcated border)

•   Painful, very red, swollen and warm skin underneath the lesion
•   Facial erysipelas lesions on the cheeks and the bridge of the nose
•   Blisters
•   Fever, shaking and chills 

23

What is the treatment for Erysipelas?

 

Anti-biotics such as penicillin are used to eliminate the infection. In severe cases, anti-biotics may need to be given through an IV (intravenous line).

24

Complications of  Erysipelas. Except::

  1. Bacteremia
  2. septic shock
  3. Contractures
  4. recurrent infection
     

Except: 3

25

It is a usually a bacterial suppurative inflammation of the nail fold, surrounding the nail plate.  It can also be caused by fungi. 

Paronychia