Integumentary infections Flashcards
Atopic dermatitis: Definition
- chronic or relapsing inflammatory skin disease
- Characterized by pruritus
Atopic dermatitis Risk factors
- Multifaceted - include genetic, immunologic and environmental factors
- Family history and aberrant skin barrier gene coding
- Can go along with allergic reaction sometimes
Atopic Dermatitis: clinical manifestations
- rash: Red, oozing, crusting, mainly on flexor side
- Xerosis: dry skin
- Pruritus: itching
- Typically rash spares diaper area
Atopic dermatitis: medical management
Medical management
- Topicals (lanolin): coat the skin to add protection
- Systemic medications (antibiotics, antihistamines, antimicrobials, corticosteroids, immunosuppressants, nonsteroidals)
- UV irradiation: dries out the skin
- Education: controlling and minimizing triggers
- Goal of treatment: break inflammatory cycle causing dryness, cracking, itching and scratching
Atopic dermatitis: PT concerns
- Caution with modalities, gels, creams, soaps, cleansers
- Avoid agents containing alcohol as it can dry out the skin making it crack/open to further infection/irritation
Contact dermatitis: definition
a local inflammatory reaction due to external exposure
Contact dermatitis: risk factors
immunocompromised
Contact dermatitis: Clinical manifestations
- Erythema: reddening of skin
- Pruritus
- Edema
- Wheals
- Maculopapular vesicles
Medical management of contact dermatitis
- Examination, patch testing for allergens, topicals, antihistamines
- Removal of agent
- Similar to AD
PT concerns for contact dermatitis
- Prosthetics, silicone, gels, lotions, soaps, cleaning products
- Learn what to avoid
Eczema and dermatitis: definition
periods of remittance and relapse of superficial itch, inflammation of the skin
Eczema and dermatitis types
- Types: seborrheic (scalp), nummular (discoid = disc shaped), and stasis dermatitis (related to circulation usually)
- relapsing/remitting
Eczema and dermatitis: risk factors
Risk factors:
- Common in children and adults
- Can be genetic
- Medications
- Stasis dermatitis = venous hypertension/venous insufficiency)
Eczema and dermatitis: Clinical manifestations:
Discoid lesions, circular
Red itchy patches
Eczema and dermatitis: Medical management:
- Topical to bring down the superficial irritation
- Regulation BP/cholesterol if its related to circulation
PT concerns for eczema and dermatitis
- modalities can irritate
Rosacea:
Definition
chronic facial disorder of middle-aged and older people; condition caused by vascular and inflammatory componenets)
Rosacea: Risk factors:
no known cause
Rosacea: Clinical manifestations:
- Acneiform rosacea can occur with papules (oil in it), pustules and oily skin
- Cheeks, nose and chin have persistent rosy appearance
- Pustules, papules, burning or stinging
- Fascia edema
- Certain things may cause it to flare up
Rosacea: Medical management:
- Topical or systemic therapy
- Pulsed dye lasers to seal superficial vessels and help with discoloration
Incontinence-associated dermatitis:
Definition:
damage from chronic exposure to urine of feces
incontinence-associated dermatitis:
Clinical manifestations:
- Person may be uncomfortable in seated position or positions that put pressure on genital area
- Burning, itching or tingling
- Erosion of skin and maceration
incontinence-associated dermatitis: Medical management
- Gentle cleaning, moisture barrier cream, pressure relief
- High-grade moisture-wicking underpads
Skin bacterial infections
- Impetigo contagiosa - contagious
- Pyoderma - contagious
- Folliculitis (pimple/boil) = contagious but minimal chance of spread
- Cellulitis - contagious
Skin viral infections
- Verrucae (warts) - contagious, self inoculable
- Verruca plantaris (plantar wart) - contagious; self inoculable
- Herpes type 1: cold sore = contagious
- Herpes 2: genital = contagious
- varicella -zoster virus: contagious (chickenpox)
Skin fungal infections
- Tinea corporis (ringworm): person to person, animal to personal, object to person
- Tinea capitis (scalp) = person to person, animal to person
- Tinea cruris (jock itch) = person to person, animal to person
- Tinea pedis (athletes foot) = transmission to other people rare
- Candidiasis = person-person; transmitted during birth from mother to neonate
Impetigo definition
superficial skin infection, highly contagious, more in children 2-6 or older adults commonly caused by staph or strep.
Impetigo: risk factors
Risk factors:
- Poor hygiene
- Close contact
- Malnutrition
- Minor skin trauma
Impetigo Clinical manifestations:
- Erythematous macules (flat spots) that develop into papular lesions of vesicles (small blisters)
- Become pustular (pus-filled)
- Itching and scratching of vesicles after they break/crust
Impetigo Medical management:
- Self-limiting with good hygiene
- Topical and or systemic antibiotics (cover both staph/strep)
PT concerns for impetigo
highly contagious
Cellulitis:
Definition:
rapidly spreading bacterial infection of skin and subcutaneous tissue most common in extremities
cellulitis: risk factors
Risk factors:
Immunocompromised
Older adults
Venous insufficiency
Thrombophlebitis
Obesity
Surgery
Substance abuse
Open wounds
cellulitis Clinical manifestations:
Pain
Erythema
Edema
Elevated temperature of affected skin
fever/chills
Malaise
Most commonly affects extremities
cellulitis: Medical management:
Intravenous antibiotic infusion
Debridement
Cellulitis: PT concerns:
Monitor progression
Education
Wound care
Warts (verrucae)
Definition:
common, benign viral infections of skin and adjacent mucus membranes caused by human papillomaviruses
Warts verrucae: Risk factors:
Usually direct contact
Warts Verrucae: Clinical manifestations:
Depends on type and location
Verruca vulgaris (hands nad extremities)
Plantar (foot) - no drainage and occur on pressure points
Warts verrucae: Medical management:
Diagnosis on visual exam
OTC salicylic acid
Surgical removal
Cryotherapy
Laser
Chemical cautery
Oral medications
Immunotherapy
Ringworm (tinea corporis)
- fungal
- scales forming circular lesions with clear centers - commonly in hair, skin or nails
- Transmission with direct contact
Athletes foot (tinea pedis)
- peeling, itching, strong odor
Yeast (candidiasis)
- wet moist areas; bright red rash with tiny macules and papules, scaly
Medical management of fungal infections
Medical management: antifungal cream or oral antifungal medications
PT concerns with fungal infections
PT concerns: education hygiene
Parasitic infections of the skin
Scabies: highly contagious, spread by mites
Lice
Scabies: clinical presentation
- Intense pruritus (worse at night), excoriated skin, one or more burrows with vesicle at one end
- Direct or indirect contact
- Flexor surface of wrist, web spaces of fingers, axilla, waistline, nipples (females), genitalia (males), umbilicus
Scabies: treatment
Treatment; removal of mites - scabicide ) permethrin of lidane
Pediculosis (lousiness) - lice/human pediculus humanus parasite
- Severe itching, eczematous changes, white or gray nits (eggs) at base of hair follicle
- Spread by direct or indirect contact
- Diagnosis: inspection
- Treatment: disinfectant solution (shampoo or soap containing permethrin)
Seborrheic Keratosis
- where is it?
- when is it likely to occur?
- Describe characteristics
- treatment:
- Basal cells
- Usually middle age
- Waxy, smooth, or raised
- After inflammatory dermatosis
- Don’t treat unless they become itchy/painful
- Treatment: cryotherapy
Nev
- Aggregation of melanocytes
- Usually doesn’t spread
bleed/itch = could be a problem
Benign lesions of the skin
- serborrheic keratosis
- nevi