Fundamentals Study Guide- Ch. 48 Skin Integrity And Wound Care Flashcards
Identify the risk factors that predispose a patient to pressure ulcer formation.
A. Impaired sensory perception B. impaired mobility C. Alteration in level of consciousness D. Shear E. friction F. Moisture
Identify the pressure factors that contribute to pressure ulcer development.
A. Pressure intensity
B. pressure duration
C. Tissue tolerance
Staging systems for pressure ulcers are based on the depth of tissue destroyed. Describe the stages.
One: intact skin with nonblanchable redness of a localized area over a bony prominence.
Two: partial-thickness skin loss involving epidermis, dermis, or both.
Three: full thickness with tissue loss.
Four: full thickness tissue loss with exposed bone, tendon, or muscle.
Define granulation tissue.
Red, moist tissue composed of new blood vessels, which indicates wound healing.
Define slough.
Stringy substance attached to wound bed that is soft, yellow, or white tissue.
Define eschar.
Black or brown necrotic tissue.
Define exudate.
Describes the amount, color, consistency, and odor of wound drainage.
Describe this physiological process: primary intention.
Wound that is closed by epithelialization with minimal scar formation.
Describe the physiological process: secondary intention.
Wound is left open util it becomes filled by scar tissue; chance of infection is greater.
Identify the three components involved in the healing process of a partial thickness wound.
A. Inflammatory response
B. epithelial proliferation
C. Migration with reestablishment of the epidermal layers
Explain the four phases involved in the healing process of a full thickness wound.
Hemostasis: injured blood vessels constrict, and platelets gather to stop bleeding; clots form a fibrin matrix for cellular repair.
Inflammatory phase: damaged tissues and mast cells secrete histamine with exudation of serum and WBC into damaged tissues.
Proliferative phase: with the appearance f new blood vessels as reconstructive progresses, begins and lasts from 3-24 days. Filling of wound with granulation tissue, contraction of the wound, and resurfacing of the wound by epithelialization.
Remodeling: maturation, the final stage, may take up to one year; the collagen scar continues to reorganize and gain strength for several months.
Define hemorrhage.
Bleeding from a wound site; occurs after hemostasis indicates a slipped surgical suture, a dislodged clot, infection, or erosion of a blood vessel by a foreign object.
Define hematoma.
Localized collection of blood underneath the tissue.
Define healthcare associated infection.
Second most common nosocomial infection; purulent material drain from the wound.
Define dehiscence.
A partial or total separation of wound layers; risks are poor nutritional status, infection, or obesity.
Define evisceration.
Total separation of wound layers with protrusion of visceral organs through a wound opening requiring surgical repair.
What are the subscales of the Braden scale.
Sensory perception, moisture, activity, mobility, nutrition, and friction or shear.
List the factors that influence pressure ulcer formation.
Nutrition, tissue perfusion, infection, age, and psychosocial impact of wounds.
Explain how mobility places a patient at risk for pressure ulcer.
Potential effects of impaired mobility; muscle tone and strength.
How does body fluids place a patient at risk for pressure ulcer?
Continuous exposure of the skin to body fluids, especially gastric and pancreatic drainage, increases the risk for breakdown.
How does pain put a patient at risk for pressure ulcer?
Adequate pain control and patient comfort will increase mobility, which in turn reduces risk.
Which type of emergency setting wound is this: is superficial with little bleeding and is considered a partial thickness wound.
Abrasion
Name the emergency setting wound: sometimes bleeds more profusely depending on depth and location.
Laceration
Name the emergency setting wound: bleeds in relation to the depth and size, with a high risk of internal bleeding and infection.
Puncture
How would you assess a wound appearance?
Whether the wound edges are closed, the condition of tissue at the wound base; look for complications and skin coloration.
How would you assess character of wound drainage?
Amount, color, odor, and consistency of drainage, which depends on the location and the extent of the wound.
Name the wound drainage described: clear, watery plasma.
Serous