Week 2: Integumentary System Flashcards
What is impetigo
-bacterial infection
-vesiculopustural lesions
-develop thick honey colored crust
-most common on face
Carbuncle
-multiple interconnecting furuncles
-most common on nape
Furunculosis
-increased in diabetes, obese, chronically ill patients
Seborrheic keratosis
-irregularly round or oval, often verrucous papules, well-defined, pigmentation gets darker with time
Folliculitis
-bacteria
-in areas subjected to friction, moisture, rubbing
-increased in diabetes patients
What does ultraviolet A rays cause
tanning, premature aging, loss of skin elasticity, degenerative changes in dermis
Actinic keratosis
dry, scaly, hyperkeratotic papules, flat or elevated
What does ultraviolet B rays cause
sunburn, premature aging, loss of skin elasticity, degenerative changes in dermis
Atopic dermartitis
associated with asthma
-could cause oozing vesicles, itching,
What order to WBCs appear during cellular response to tissue injury
- Neutrophils
- Monocytes
- Macrophages
- Lymphocytes
How does inflammation follow vascular pathway
- Cellular injury
- Release of chemical mediators
- Local vasodilation
- Increased capillary permeability
Acetaminophen (tylenol)
lowers temp by action on heat-regulating center in hypothalamus
Fibrinous inflammatory exudate
fibrinogen leakage into interstitial spaces.
Aspirin (Salicylates)
-Inhibit PG synthesis
-reduce capillary permeability
Mechanical debridement
-Wet-to-dry dressings
-Wound irrigation
What is becaplermin used for
-treats pts with diabetic foot ulcers
-only used when wound is free of dead tissue and infection
How does smoking affect healing
impedes blood flow to healing areas
What assessments need to be done before administering isotretinoin for severe acne
-liver function
-ask if pregnant or wanting to be pregnant
What is a side effect of psoralen (for phototherapy)
sunburns and persistent pruritus
Positive test results of potassium hydroxide test indicate what?
a fungal infection
What is a punch biopsy
obtains tissue sample for histologic study. Reserved for lesions smaller than 0.5cm
What is fluorouracil and what are side effects
-treats precancerous lesions (especially AK)
How is the Breslow measurement related to the prognosis of malignant melanoma?
The deeper the tumor the worse the prognosis
What is cellulitis
infection of the dermis and underlying hypodermis
What characterizes psoriasis
thick reddened papules or plaques covered by silvery white patches
What does basal cell carcinoma appear as
pearly papule with central crater and rolled waxy border
What does actinic keratosis appear as
premalignant lesion, appears as small macule or papule with dry, rough, adherent yello or brown scale
What does squamous cell carcinoma appear as
firm, nodular lesion, topped with a crust or a central area of ulceration
Cyanosis on dark skin people
ashen gray color seen in conjunctiva, mucous membranes, and nail beds
Jaundice in dark skin
sclera, palms, soles
Viral skin infection
-herpes simplex
-herpes zoster
-plantar warts
primary intention
neatly approximated edges such as surgical incision or paper cut
-initial, granulation, and maturation phases
Secondary intention
edges not approximated from trauma, ulceration, or infection
Tertiary intention
delayed primary intention, suturing of wound
Debridement options
-biologic
-enzymatic
-autolytic
-mechanical
-surgical/ conservative sharp
