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42 Cards in this Set

  • Front
  • Back
UV rays can cause
premature aging
examples of changes in the dermis caused by degenerative uv rays (4)
loss of elasticity
thinning
wrinkling
drying of the skin
most dangerous time of the day to be in the sun
10am-2pm standard
or
11am-3pm day light saving time
what percentage of uv light can penetrate through clouds
80%
factor that can increase possibility of sunburn (3)
high altitudes
snow (reflects 80% of the sun's rays)
or being near water
tanning beds and sun lamps are primarily
UVA (wavelength - long)
2 types of sunscreens
chemical and physical
sunscreens should be applied how long before goin outdoors?
20-30 min
regardless of sunscreen claims ALL sunscreen should be reapplied
every 2-3 hours
SPF stands for
sun protection factor
what areas can be used to assess skin of darker individuals
oral mucosa
conjunctiva
palms
soles of feet
what reduces threshold of itching and potential skin damage from resultant scratching
sleep ( it is restorative)
absence of Vitamin A
dryness of the conjunctiva and poor wound healin
vitaimn B deficiencies manifest as dermatologic symptoms
erythema
bullae
seborrhea like lesions
absence of vitamin c
scurvy
petechiae
bleeding gums
purpura
vitamin k deficiencies
interfere with normal prothrombin synthesis in the liver and can lead to bruising
protein necessary for adequate ____ growth and ___ ____.
cell growth
wound healing
ABCD rule of self examination of skin lesions
asymmetry
border irregularity
color change/variation
diameter of 6 mm or more
nonmelanoma skin cancers are either ____ cell carcinoma or ____ cell carcinoma
most common form of skin cancer
basal cell
squamous cell
actinic keratosis
(solar kertaosis)
consists of hyperkeratonic papules and plaques occuring sun-exposed areas
actinic keratosis is a
premalignant form of squamous cell carcinoma that affects nearly all of the older white population (most common of all precancerous skin lesions)
basal cell carcinoma (BCC)
locally invasive malignancy arising from epidermal basal cells. most common type of skin cancer and also least deadly
malignant melanoma
neoplastic growth of melanocytes anywhere on skin, eyes, or mucous membranes
malignant melanoma
tumor arising in melanocytes which are the cells producing melanin
melanoma has the ability to metastasize to any ___ including the ___ and ___.
organ
brain
heart
melenoma
most deadily form of skin cancer
breslow measurement determines
depth in mm
clark level indicates
number of skin layers involved
according to clark level
higher the number deeper the melenoma
dysplastic nevus
atypical moles
bacterial infection occurs when the
balance between the host and the microorganisms is altered
curettage
removal and scooping away of tissue using an instrument with a circular cutting edge attached to handle
punch biopsy
cores out a small cylinder of skin when its sharp edge is twirled between fingers
cryosurgery
use of subfreezing temp to destroy epidermal lesions
skin scraping
done with a scalpel blade to obtain a sample of surface cells for microscopic infection and dx
electrodessication
involves more superficial destruction & a monopolar electrode is used
electrocoagulation
deeper effect than electrodessication with better hemostasis an increased possibility of scarring
excision (Mohs' surgery)
microscopically controlled removal of a cutaneous malignancy
skin grafts
provide protection to underlying structures or to reconstruct areas for cosmetic or functional purposes
auto graft
from pt's own body
isograft
from an identical twin
reconstructive microsurgery
with use of operating microscope, circulation is immediately established in the free flap by anastomosis of the blood vessels from the skin flap to the vessels in the recipient site