Infections

Question 1

regional LAN with scattered, discrete lesions. They are painful, tender and have crust on them

Answer 1

non-bullous impetigo

Question 2

dark brown bullae with a negative nikolsky sign

Answer 2

bullous impetigo

Question 3

For MRSA use doxy. If critically ill and with MRSA use Vanco or linezolid

Answer 3

impetigo

Question 4

systemic treatment for this includes dicloxacillin, augmentin and keflex.

what would you do for a PCN allergy in this disease?

Answer 4

impetigo

PCN allergy = macrolide

Question 5

For MSSA use Keflex, for MRSA use Doxy or Bactrim

Answer 5

folliculitis

Question 6

Acute, deep seated, red, hot, tender nodule or abscess

Answer 6

furuncle

Question 7

Nodule with cavitation after drainage in any hair bearing region

Answer 7

furuncle

Question 8

treat with bactrim, doxy or clinda and a warm compress

Answer 8

furuncle (ABX only if red/hot/tender)

also for carbuncles!

Question 9

Deeper connection of interconnected furuncles

Answer 9

Carbuncle

Question 10

MC found on the nape of the neck, back and thighs

Answer 10

carbuncle

Question 11

for a carbuncle that is rapidly growing and has toxic s/s what is the treatment

Answer 11

admission with vancomycin

Question 12

Rapid progression of infection with extensive necrosis of soft tissues and overlying skin

Answer 12

necrotizing fasciitis

Question 13

caused by GABHS, pseudomonas, and clostridium

Answer 13

necrotizing fasciitis

Question 14

malnutrition, DM, ETOH abuse, Liver dx, CKD are all risk factors for what?

Answer 14

necrotizing fasciitis

Question 15

presents with cyanosis, muscle weakness, skin pallor and hyperesthesia as well as foul smelling exudates and pain out of proportion to exam

Answer 15

necrotizing fasciitis

remember this can also have vescicles, bullae, or eschar!!

Question 16

a rapidly progressing wound that can be erythematous with pallor and gas crepitus.

Answer 16

necrotizing fasciitis

Question 17

clinda, carbapenems, unasyn, and vanc for MRSA is used for what?

Answer 17

necrotizing fasciitis.

depends on culture and gram stain!

Question 18

Acute, superficial infection of the dermis and dermal lymphatic vessels

Answer 18

erysipelas

Question 19

if a patient has an indwelling device and is being treated for an abscessed folliculitis what type of therapy must they undergo

Answer 19

abx therapy

Question 20

MC in young children or older adults. Usually d/t GABHS

Answer 20

erysipelas

Question 21

pt presents with a prodrome of fever and chills. On her arm is multiple lesions that are painful and hot to the touch. they are described as edematous plaques with sharp borders. She believes it originated from a small bite from her cat. what is the treatment for this patient?

Answer 21

erysipelas secondary to cat bite: treat with augmentin

Question 22

Acute infection of the dermis and subcutaneous tissue

Answer 22

cellulitis

Question 23

pasteurella multocida is associated with which disease and what exposure?

Answer 23

cellulitis in exposure for cats/dogs

Question 24

which disease is aeromonas associated with and what exposure is it related to

Answer 24

cellulitis and freshwater exposure.

Question 25

A patient presents and she has a prodrome of fever/chills. she reports an erythematous area on her leg which on is painful, hot to the touch and has indistinct borders. What is the diagnosis? if they got admitted, what would IV management be in this patient?

Answer 25

cellulitis MRSA: vanco 1st, dapto 2nd MSSA: cefazolin, clinda, nafcillin

Question 26

PVD, tinea pedis, and lymphatic drainage are all risks for what disease

Answer 26

cellulitis also anything that breaks the skin like IVDU, piercings, bites, ect (and immunocomp)

Question 27

MRSA: vanco 1st, dapto 2nd MSSA: cefazolin, clinda, nafcillin

Answer 27

inpatient IV management for cellulitis/erysipelas

Question 28

MRSA: clinda 1st, amox + bactrim or doxy what is this for and what would the treatment be for MSSA?

Answer 28

oral management for cellulitis/erysipelas MSSA: keflex, nafcilin, clinda

Question 29

what is eikenella and how do we treat it

Answer 29

bacteria found often with human bites (ew). we can treat it with augmentin!

Question 30

if im fishing w my dad in a texas river and get a small cut but decide to clean it out w the water and develope cellulitis what ABX would you treat me with

Answer 30

cipro (take a "cip" of freshwater - viv)

Question 31

if i go scuba diving at the beach and cut myself and wash it out with water from the beach and develop cellulitis what would you treat me with

Answer 31

doxy! salt at the dock(xy)

Question 32

etiologies include GAS, staph and HSV! also mycobacterium marinum

Answer 32

lymphangitis

Question 33

Dicloxacillin or 1st gen cephalo (keflex) MRSA: clinda or bactrim

Answer 33

lymphangitis

Question 34

steroid or antibiotic use as well as hyperhidrosis are risk factors for what

Answer 34

cutaneous candidiasis

Question 35

satellite lesions that are macerated and pruritic

Answer 35

cutaneous candidiasis

Question 36

if a patient has mild folliculitis what is the treatment?

Answer 36

warm compresses with a BPO wash. ABX only indicated for moderate-severe folliculitis!

Question 37

Inflammation of the Glans penis

Answer 37

balanitis

Question 38

Unique group of fungi capable of infecting non-viable keratinized cutaneous structures (stratum corneum, nails, hair)

Answer 38

dermatophyte

Question 39

MC dermatophyte

Answer 39

trichophyton

Question 40

when do you use a woods lamp and what would it show? what would a KOH prep show in this scenario?

Answer 40

for dermatophyte testing, it would show microsporum KOH = hyphae and spores

Question 41

when do you use topical allylamines and what are the topical allylamines

Answer 41

tx of tineas and systemic tx of dermatophytes naftifine and terbinafine

Question 42

an infection outside of the hair shaft that leaves a gray patch with a scaly appearance

Answer 42

ectothrix

Question 43

an infection within the hair shaft that leaves a black dot appearance

Answer 43

endothrix

Question 44

alopecia with scaling and pruiritis. adenopathy is present.

Answer 44

non-inflammatory tinea capitis

Question 45

alopecia that is painful and tender is likely what dianosis

Answer 45

inflammatory tinea capitis

Question 46

what is the MCC of endothrix

Answer 46

T tonsurans or violaceum

Question 47

a large mass on a patients head with boddy, purulent inflamed nodules and plaques. what is this and what is the MCC

Answer 47

kerion. T verrucosum and mengatophytes

Question 48

Perifollicular erythema and matting of hair that is malodours and leaves scarring

Answer 48

favus

Question 49

can treat with PO terbinafine or griseofulvin

Answer 49

tinea capitis along with ketoconazole shampoo

Question 50

Large scaling, well-demarcated plaques, Central clearing, Papules/pustules at margins. found in inguinal folds and thighs. what is this and how do you treat it

Answer 50

tinea cruris (jock itch) tx with topical ketoconazole or econazole. if that fails use PO griseofulvin.

Question 51

if ring worm is very large or if it fails topical treatment, what is the next step in treatment and how long do you treat it

Answer 51

terbinafine orally for 4 weeks

Question 52

where is interdigital tinea pedis MC

Answer 52

between 4th and 5th toe

Question 53

Extension of interdigital tinea pedis onto plantar and lateral foot, presenting with a secondary bacterial infection

Answer 53

ulcerative tinea pedis

Question 54

which tinea is NOT a dermatophyte infection

Answer 54

tinea versicolor

Question 55

KOH showing Hyphae and budding yeast spaghetti and meatballs

Answer 55

tinea versicolor

Question 56

tx with selenium sulfide or zinc pyrithion and ketoconasole

Answer 56

tinea versicolor

Question 57

do you need a nap now?

Answer 57

so does rhys