Wound Care Flashcards
Function of skin
Protection against bacteria, dehydration, Uv light
Sensation
Movement with out injury
Excretion regulates volumes and chemical comp of sweat
Vit D production
Immunity
Temp regulation/ shivering vasoconstriction
Dermis
Contains no skin cells
Collagen- fibrous protein layer contains blood vessels and nerve cells
Important factor in wound healing
dermis restores the physical properties of the skin and structural integrity
Provides mechanical strength for the skin
Epidermis
The outer layer of the skin directly in contact with the environment
5 layers
Melanin
Keratin
Contains nerves and provides sensation of pain pressure and temperature
Reservoir for water and electrolytes
Makes skin stretchable and elastic
Abrasion
Not deep, wide, kinda like a brush burn
Lacerations
Deep, long, in one line, thinner than an abrasion
Contusion
Bruising
Punctures
Deep, small surface area on skin
Avulsions
Skin peels off (devolving)
Ulcer
Lesion that erodes away the skin
Surgical incisions are
Well approximated
Causes of wounds
Trauma
Pressure
Shear and friction
Poor circulation
Three stages of healing
Inflammation
Proliferation
Maturation
Inflammation
blood vessels constrict, intrinsic clotting pathway, fibrin matrix seals from further contamination and neutrophils removed dead tissues
Proliferation
Monocytes Phagocytes Granulation of tissue formation New tissue Collagen replace fibrin Maturation of new tissue
Maturation
New tissue