leik skin Flashcards
RMSF
abrupt onset high fever chills severe HA N/V photophobia myalgia arthalgia
rash 2-5 days later
petichaei -small red spots- high mortality if not treated within 5 days on bl wrists frorarms, sometimes palms and soles, goes to trunk
tx is doxycycline (tetracycline abx)
brown recluse
can cause hemolysis fever, chills vomitinc, small pin prick, or painles, swollen- then blisters, then eschar, then ulcer that heals in weeks
lyme disease early
bulls eye rash, 7-30 days after bite, rash is hot and rough in texture, flue like symptoms
impetego rash
honey colored crusts
fragile bullae
itchy
measles rash
Koplik spots white on red base in mouth near molars
scabies rash
VERY ITCHY especially at night
between fingers, waist, axilla and penis
scarlet fever rash
SANDPAPER rash with sore throat
tinea vesicolor
hypopigmentation white patches on back or upper sholders
NO ITCH
caused by yeast
check potassium hydroxide lab KOH and see spaghetti and meatballs (hyphae and spores)
antifungals for 2 weeks
spots will take time to get pigment back
pityriasis rosea
CHRISTMAS TREE RASH on cleavage line, herald pathc shows up first
molluscum contagiosum
smooth papulues 1mm in side
dome shaped with a central umbilication and white plug
erythema migranes
bulls eye rash
meningococcemia
dark purple
LOC changes
acute onset high fever
rifampin to close contacts
meningococcemia meningitis precaustions
aerosol droplet precautions
rifampin BID for two days for close contacts
melanoma
6mm or bigger
underfingernails are REAL baad
ACRAL lentiginous melanoma
most common type in AA and asians
dark brown on palms or nail beds
actinin keratosis can progress to
squamous cell
subungal hematoma
heat needle or paper clip and relaease that goop
SJS rash
classic lesions apear like bulls eye or target
EXTENSIVE mucosal surface involvent
lots of rashes at onece
SJS and TEN
HIV have a much higher risk particularly with bactirm vs the gen pop
allopurinol
lamtriginr, carbamazepine phenobarb
sulfonamides
oxicam nsaids
pseudofolliculitis barbae
nromal finding- let it grow for 4 weeks and avoid close shaving
avoidsteroids in fugas cause
it makes it worse
1 is the most strong steroid
7 is weakest
psoriasis def
inheritid disprder, squamous epithelial cells rapidly divid and mature producing plaques
koebner phenomonon: new plaqus over skin trauma
auspitz sign: pinpoint bleed when palque is dc’d
Hallmark is PITTING OF NAILS
psoriaiss tx
topicla steroids and retinoids- tazarten, or tar preps psoralen drug class,
methotrexate cyclosporine or bioligics- etanercept or adalimunab for severe
Black box on topocal tacrolimus- can cause skin malignancy
psoriasis before bioligic or anti tumornecoris drugs
baseline CBC and PPD
actinin keratosis classic case
sun exposed numerous leasins dry, rouund, pink red, rough and scaly texture do not heal, painless
biopsy is gold standard
eczema atopicdermatitis presentation
VERY itchy on hands, flexoral folds, and neck, worse with stress, and winter,
associated with allergy history
CC hand rash, multiple small vesicles that rupture, leaving painful bright red weepy lesions the lichenifi from chronic itching
fissues can form and get infected
t
eczema atopicdermatitis tx
topical steroids,
higher potency for worse disease
avoid drying and hot water lube after baths, do not wait till skin is dry to apply
superficial candidiasis cc and tx
obese adult, complains of bright red shiny lesion in the folds, that itches, can be associated with thrush
nystatin
hiv use oral fluconazole for systemic treatment
liver disease or preggers avoid raw or undercooked oysters becasue of
vibro vulnificus infection- high mortality rate
cellulitis is mostly gram
positive:
non mrsa cellulitis nonpurulent
dicloxacillin or cephlex/clinda
zpac if pcn allergy
mrsa cellulitis
bactim ds or minocycine
td booster if last dose was greater than 5 years ago.
lyme testing
enzyme immunoassay if neg no futer testing
IFA or western blot
early lyme doxy bid
or amoxicillin or cefetin
chick pox and shingles contageos
chick: 1-2 days before rash till all have crusted over
shingles: at onset till all crust over
gold standard dx is viral culture with PCR
