Ch. 58 (Osborn)- nursing assessment of the pt w/integumen. disorders Flashcards
3 layers of the skin:
epidermis, dermis, subcutaneous tissue
what percentage of body weight is the skin?
7%
4 distinct cells located in epidermis:
keratinocytes
melanocytes
merkel’s cells
langerhans’ cells
maturation & death of keratinocytes
Q4-6 weeks
merkel’s cells
provide sensory information
langerhans’ cells
macrophages of the immune system that arise from bone marrow
reticular dermis
composed of complex meshwork of three-dimensional collagen bundles interconnected with large elastic fibers and ground substance
also contain dermal dendrocytes
specific immune cells found in dermis
t cells, mast cells, fibroblasts
where is the lymphatic system located
dermis
three types of ultraviolet rays
UVA- produce elastic skin & actinic skin damage
UVB- sun damage
UVC-
systemic lupus erthythematosus
causes a butterfly rash on the face
pt’s with clubbed nails might..?
have cardiovascular disease
“skin popping”….A.K.A…?
subcutaneous injection
3 causes of excessive perspiration
obesity
heart disease
hyperthyroidism
asians’ skin has….?
more carotene
which part of the hand is used to detect moisture on skin?
dorsal surface
medical disorders that cause skin dryness
myxedema
nephritis
petachiae
pinpoint purpuric lesions
vitilago
the absence of pigmentation in circumscribed areas
ecchymosis
purplish, blue and black marks that are usually caused by trauma
cyanosis
bluish-grey discoloration caused by lack of oxygen
2 examination techniques for skin lesions
inspection
palpation
arciform lesions
arc shaped lesions
ex. ringworm
primary lesion
occurs as an initial reaction to a pathologic condition