Final Examination Review Flashcards
What does partial thickness wound depth include?
Partial loss of dermal tissue that is confined to epidermis and superficial dermis
What does full thickness wound depth include?
involves total loss of dermal tissue that may involve deeper tissues (muscles, bone, subcutaneous)
What are 7 factors that influence wound healing?
- Level/presence of infection
- Size of wound (amount and depth of tissue involved)
- Location
- Type of wound
- Amount of available blood
- Co-morbidities
- Nutrition
What type of wound closure benefits from skin grafts/flaps, substitutes or other surgical interventions?
Secondary
What type of cells form around the edges of the wound and migrate inward?
Basal Cells
First cells to arrive in the new wound are?
Neutrophils—Present within minutes of the injury and dominate the area for 2-3 days
What helps to stop the bleeding of the a wound during the hemostasis phase?
Aggregation and activation of platelets
T/F Any acute injury beyond the epidermis and through the BMZ causes bleeding?
True
What happens in the hemostasis phase in normal wound healing?
Blood clots form
Bleeding stops
Blood clot is broken down
What happens in the inflammatory phase of normal wound healing?
Vascular
Exudate
Reparative
What happens in the Reparative stage of the inflammatory process
Macrophages come inwound healing begins*****Battle bacteria and dead cellsBegin to lay down new tissue
What happens in the remodeling phase?
Type 3 collagen to type 1 collagen Decrease in vascular need=pink, turning to white+3 year process of change
What cells are distributed throughout the basel layer of epidermis and responsible for skin pigmentation?
melanocytes
How is skin pigment produced?
melanin synthesis
What is responsible for the difference in skin color?
- size, number, and distribution of of melanosomes
- the activity of the melanocytes
The dermis is primarily populated by ___________.
fibroblasts
Functions of dermis include?
nutritional support immune surveillance would healing thermal regulation hemostasis inflammatory response
From a wound healing stand point what is the most important protein in the body and where do they come from?
collagen
secreted by dermal fibroblasts
Functions of the integumentary system?
Protection Immunity Thermoregulation Sensation Metabolism Communication Vitamin D Synthesis Blood reservoir
What is hemosiderin staining?
- red blood cells can lead out of dilated vessels
- stimulated melanin get trapped in the skin
- this causes a darkening of surrounding tissues
Gold standard for measuring lymphedema?
- volumetric measurement
what sensation is not diminish when a pt has deep partial-thickness burn?
- deep pressure
Superficial partial-thickness burns extend into what layer of the skin?
- papillary dermis
T/F capillaries –>pre collectors–>collector nodes–>trunks–>ducts
TRUE
