Patel - Derm Infections

Question 1

A localized form of Staph Scalded Skin Syndrome

Answer 1

Bullous impetigo

Question 2

Exfoliative toxin disturbs this epithelial adhesion protein

Answer 2

Desmoglein 1

Question 3

The layer of skin that peels off with SSSS

Answer 3

Stratum granulosum

Question 4

Temperature. Then in 1-2 days, skin wrinkles, then forms bullae (like sandpaper), then sloughs off in sheets.
Leftover skin is moist, red, glistening and tender.

Answer 4

SSSS

Question 5

Sandpaper skin

Answer 5

Scarlet fever and SSSS

Question 6

What’s different between Scarlet fever rash and SSSS rash?

Answer 6

Scarlet fever rash is NOT tender

Question 7

• Systemic illness.
• Spread via TOXIN IN BLOOD
• Sheets of Sloughing Skin

Answer 7

Scalded Skin Syndrome

Question 8

Is bacteria in blood culture with SSSS?

Answer 8

NO! Staph is local. The toxin is hematogenously spread.

Question 9

ill-defined border

• erythema
• warmth
• pain, edema
• caused by staph or strep

Answer 9

Cellulitis

Question 10

Purulent cellulitis is caused by

Answer 10

Staph

*The other one’s the other one

Question 11

If left untreated, cellulitis can become

Answer 11

Cellulitis or bulls

Question 12

Differential for cellulitis

Answer 12

DVT

Question 13

Slide 14,15FIX Tx for outpatient non purulent cellulitis

Answer 13

Tx for group A strep

Question 14

FIX Tx for outpatient purulent cellulitis

Answer 14

cover community acquired MRSA

Question 15

FIX Tx for hospitalized cellulitis its

Answer 15

Cover MRSA and take culture if purulent

Question 16

Causes Erysipelas

Answer 16

Group A Strep

Question 17

Tx for Impetigo

Answer 17

Topical retapamulin or mupirocin twice daily for 1 week.

*oral antibiotics if needed

Question 18

Complication from untreated or aggressive impetigo

Answer 18

Post-stretocococcal glomerulnephritis 1-5 wks post infection

Question 19

Which type of Impetigo starts as bullae within stratum granulosum?

Answer 19

Bullous

Question 20

Honey colored crust

Answer 20

Nonbullous Impetigo

Question 21

Which type of Impetigo exhibits flaccid bullae with clear yellow fluid and no surrounding erythema?

Answer 21

Bullous Impetigo

Question 22

Anti-DNAse B titer elevation

Answer 22

Group A strep Impetigo

Question 23

Stratum corneum roof and exotoxins

Answer 23

S. aureus Impetigo

Question 24

Most common cause of Impetigo

Answer 24

S. aureus

Question 25

Cellulitis after body piercing usually caused by

Answer 25

S. aureus

*The others are Strep (IV drug, lipo, CABG, etc)

Question 26

Tx for Erysipelas

Answer 26

Penicillin

Question 27

This cellulitis is superficial, well demarcated, streaking, and caused by

Answer 27

Group A Strep (pyogenes)

*Erysipelas

Question 28

Most common cause of Necrotizing fasciitis

Answer 28

Strep pyogenes

Question 29

Causes necrotizing fasciitis in cirrhosis pts

Answer 29

Vibrio vulnificus

Question 30

Causes necrotizing fasciitis and gas gangrene

Answer 30

Clostridium species

Question 31

Causes peptostreptococcus necrotizing fasciitis

Answer 31

Anaerobic strep

Question 32

Causes post herpetic neuralgia (PHN)

Answer 32

Varicella -Zoster Virus

Question 33

This phase of Shingles is infective; live virus in the vesicles.

Answer 33

Eruptive Phase

Question 34

Tx disseminated and ophthalmic zoster with

Answer 34

IV acyclovir