Bacterial/Viral Infections

Question 1

Cellulitis treatment

Answer 1

1st line: dicloxacillin 500 mg PO q6h
IV if not responsive

Question 2

Cellulitis

Answer 2

inf of deep dermis and sub cutaneous
pea d’ orange skin (dimples)
SICK
ill defined and FLAT

Question 3

Erysipelas

Answer 3

infection of dermis
Lymphatic streaking
SICK
well defined and raised border
RAPID expansion
itchy and burning

Question 4

Cellulitis and Eryspielas

Answer 4

both hot, red, swollen, tender
most common in legs
can be recurrent
often caused by tinea pedis allowing bacterial entry

Question 5

Erysipelas tx

Answer 5

1st line: penicillin or amoxicillin oral

Question 6

Impetigo

Answer 6

infection of epidermis
honey-colored crust
NO surrounding erythema
NOT sick
generalized or local (typically around moth/nose)

Question 7

Impetigo tx

Answer 7

topical muprocin 2% TID x 10d

Question 8

folliculitis

Answer 8

inflammation in hair follicle
furuncle: 1 (deeper)
carbuncle 1+ (deeper)
NOT SICK
dome shaped pustules
erythematous halo

Question 9

folliculitis tx

Answer 9

eliminate irritants
-stop topical steroid
-mupirocin topical or oral if sever

Question 10

Condyloma Acuminatum

Answer 10

HPV *MC STI
genital warts (verrucae-non genital warts)
hyperkeratotic rough papules
nonpainful

Question 11

Herpes Simplex

Answer 11

HSV1- cold sores, HSV2, genital
vesicules lesion
painful (burning)
SICK on first exposure and recurrent
*RISK in neonatal= fatal

Question 12

herpetic whitlow

Answer 12

HSV on fingers or nails
common in health care workers

Question 13

herpetic gladiatorum

Answer 13

contact sports like wrestling

Question 14

molluscum

Answer 14

poxvirus
firm umbilicated pearly papules
common in children w atophy
adults is STI

Question 15

molluscum tx

Answer 15

cryosurgery (liquid nitrogen)
topical imiquimod
curettage

Question 16

HPV tx

Answer 16

imiquimod topical
OTC salicylic acid
VAX

Question 17

hepres tx

Answer 17

oral antiviral (valacyclovir or acyclovir)

Question 18

Varicella zoster

Answer 18

respiratory and contact spread
widespread, itchy, diffferent stages
*dew drops on rose

tx: supportive

Question 19

Herpes Zoster

Answer 19

dermatome- rarely cross midline
painful and burning

tx: acyclovir

Question 20

which HPV is most common
which HPV is associated with increase cervical ca

Answer 20

MC: 6+ 11
Ca: 16 + 18

Question 21

Hutchinson sign

Answer 21

shingles single vesicle on tip of nose
!!! danger of going to eye and trigeminal nerve

Question 22

Erythema infectiosum

Answer 22

“fifth disease”
parvovirus B19
young school aged
slapped cheeks and reticulated erythema

Question 23

Hand, foot, mouth

Answer 23

coxsackievirus A-16
fever and sore throat
pustules on hand and feet

Question 24

measles

Answer 24

rubeola
flat rash
3Cs: cough, coryza, conjunctivitis
*Koplik’s spot early sign

Question 25

Exanthemos

Answer 25

rash from viral infection 5th disease, HFM, measles dx: lab and biopsy non specific tx: hydration and antipyretics