Skin: 6. Dugan : Bacterial Skin And Soft Tissue Infections

Front 1

there is a question from the article 'when is clean too clean'

Back 1

so you should read it

Front 2

If you are bed ridden, what type of bacterial increase will you have?

Back 2

have increased Gram-negative rods (replacing the normal gram positive seen in the mucousal membranes)

Front 3

moist areas are generally colonized by what type of bacteria?

Back 3

facultative and anaerobic Gram-neg rods

Front 4

what are the 2 major transient bacterial flora?

Back 4

staph aureus

strep pyogenes

Front 5

how do bacteria normal cause infection (how do they gain entry)

Back 5

Bacteria gain entry through tiny abrasions in skin

Front 6

with no skin breaks, how do bacteria cause infection?

Back 6

high numbers ➞ infection

Front 7

what is decubitus ulcer?

Back 7

pressure related injury (not moved you develop this)

mixed infection of Staphylococcus aureus, Streptococcus pyogenes

Front 8

an infant comes to your office with swelling around the eyes, what do they likely have?

Back 8

cellulitis due to Haemophilus influenzae

Front 9

diabetes foot, cellulitis, and primary syphilis are all examples of what

Back 9

exogenous infections

Front 10

what is an endogenous infection?

Back 10

n may become infected from the blood stream or by direct extension of an infection site deep within the tissues

Front 11

secondary syphilis, gangrene, and meningococcemia are examples of what?

Back 11

endogenous infections

Front 12

Impetigo is caused by what ? (2)

Back 12

Grp A strep & S. aureus

Front 13

folliculitis is caused by what?

Back 13

S. aureus

Front 14

what causes Necrotizing fasciitis

Back 14

Mixed anaerobic and facultative organisms Grp A strep

Front 15

what causes cellulitis? where does it affect?

Back 15

Grp A strep and/or S. aureus


dermis/fat

Front 16

what causes acne vulgaris?

Back 16

Excessive sebum production secondary to androgen stimulation

Abnormal follicular keratinization ➞ follicular plugging

Front 17

what causes impetigo?

Back 17

50% of cases are strep and staph

Front 18

what causes bullous impetigo?

Back 18

staph a

Front 19

What is erysipelas? what causes it

Back 19

between epidermis and dermis

caused by group A strep

Front 20

a patient comes in with what appears to be a rash caused by candidia. you shine a wood's lamp on it and it is coral red in appearance. what does the person have?

Back 20

Erythrasma

Front 21

what is Sycosis Barbae? cause?

Back 21

Infection of coarse hairs of the beard (Staphylococcus aureus)

Front 22

what causes Furunculosis or boils

Back 22

(Staphylococcus aureus)

Front 23

what is a carbuncle? what is the cause

Back 23

a series of Furunculosis or boils together

caused by staph a

Front 24

A 47-year-old woman presents to her primary care physician with a several-year history of chronic skin infections and painful, 1- to 3-mm red pustules in her groin. Many of the pustules have broken and are draining a foul-smelling, puslike fluid mixed with blood. You recognize inflammation of the apocrine sweat glands. What does this person have and what is the cause?

Back 24

Hidradenitis Suppurativa (Staphylococcus aureus)

Front 25

patient has one finger that is red and a clear line is moving up the arm. What does the patient have, and what is the cause?

Back 25

Lymphangitis
(Streptococcus pyogenes)

Front 26

a patient has a rapidly spreading bacteria on the face that can move within hours causing tissue destruction. What does this person have. Caused by?

Back 26

Cellulitis due to flesh eating bacterium (Streptococcus pyogenes)

Front 27

what causes ecthyma gangranosum? what does it release

Back 27

Pseudomonas aeruginosa releases exotoxin A

Front 28

This 19-year-old pet groomer presents to the hospital 9 hours after being bitten by a cat. She complains of pain and swelling in her left forearm. The patient also has scratches on the dorsum of her right hand. What tests should be performed? What infectious agent is the most worrisome, and how is it treated? Should this patient be admitted to the hospital?

Back 28

gram stain and culture

cellulitis and bacterima

Front 29

if you see a cat or a dog bite what should you be thinking?

Back 29

Pasteurella multocida

Front 30

An otherwise healthy, 7 1/2-year-old girl had a two-week history of a swelling behind her left ear. She had no systemic illness and noted no improvement with a course of amoxicillin–clavulanate. Examination revealed a red, tender, retroauricular fluctuant lymph node measuring 2 by 2 cm behind her left earlobe. No other lymph nodes were enlarged. The child remembered being scratched by a cat two weeks earlier, shortly before the mass appeared.

what is this?

Back 30

Bartenella henselae (cat scratch disease)