Dermatology - Class 2 Flashcards
dermatology
study, research, dx, and management of any health condition that may affect the skin, fat, hair, nails and membranes
as we age –> skin becomes
thinner
drier
less elastic
less perfused
as we age –> skin is more vulnerable to
damage from
-pressure
-friction
-shear
-moisture
-malnutrition
-etc.
aging skin –> reduction in (pt 1)
dermal thickness
volume of subcutaneous fat
vascularity
cellularity
mast cells
aging skin –> reduction in (pt 2)
fibroblasts
GAG, H2O, ground substance
collagen turnover
elastin (becomes more calcified)
aging skin –> results in (pt 1)
increased rigidity
decreased torsion extensibility
diminished elasticity
increased vulnerability to tear-type injuries
aging skin –> results in (pt 2)
significantly increased time to recover from mechanical depression
increased vulnerability to bacteria –> more prone to infections
with skin changes as we age…
tissue turnover slows
increase occurrence of ecchymosis
inflammatory response decreases
tissue regeneration is slower –> can delay healing and make tissue more susceptible to infection
what do the changes (w/ age) lead to
dysfxn and impact wound healing
xerosis
most common
dry skin
what is important with xerosis
prevention –> encourage moisturizer
puritus
very common
itchy skin
can be w/ or w/o rash
puritis w/ rash
contact dermatitis
infection
drug rxn
puritis w/o rash
d/t xerosis
nevi
moles
observe changes
educate pts to observe changes
