Textbook Lab Readings Flashcards
Four stages of wound healing
-hemostasis phase
-inflammatory phase
-proliferative phase
-maturation/remodeling phase
Hemostasis phase
Blood vessels constrict, clotting factors stop bleeding for a temporary bacterial barrier, growth factors released
Inflammatory phase
Vasodilation, deems, erythema, exudate, WBC clean wound, macrophage begin repair
-should result in clean wound bed
Proliferative phase
Epithelialization begins, new granulation tissue, new capillaries (angiogenesis), collagen synthesized
-size of wound is reduced
Maturation phase
Collagen is remodeled to become stronger, giving strength to wound
-should leave a well healed scar
Primary intention
Wound is healed with sutures or staples, leaves a smaller scar
-connective tissue deposition
Secondary intention
Healing occurs by granulation tissue formation
-larger scar
Wound color: black/brown
Escher—> full thickness destruction
-necrotic, gangrenous
-need debridement
Wound color: yellow/slough
Some cases an infection
-slough can be yellow, cream coloured, gray and is accompanied by drainage
-need moisture retentive dressing, if infected need topical antibiotics
Wound color: red
Granulation tissue
-increasing new blood vessels in wound, considered healthy
-clean and moist environment
Hydrogel
Provides moisture to wound bed, and autolytic debridement
-partial, full thickness, dry to light exudate, necrotic wounds
Alginate
Highly absorptive
-moderate to heavy wound exudate, full thickness wounds
Foams
Absorption (adhesive or non adhesive)
-moderate to heavy exudate
Gauze
Protection of surgical wounds
-most to dry dressings, wound packing
Hydrocolloids
Adhesive with gel forming agent that molds to body contours, maintaining moist environment
-autolytic debridement
-absorption of minimal to moderate exudate
