Chapter 31 Wound Care Flashcards
(47 cards)
biofilm is ___
a thick grouping of microorganisms
epithelialization is ___
stage of wound healing in which epithelial cells form across the surface of a wound; tissue color ranges from the color of “ground glass” to pink
granulation tissue is ___
new tissue that is pink/red in color and composed of fibroblasts and small blood vessels that fill an open wound when it starts to heal
maceration is ___
softening through liquid; overhydration
subcutaneous tissue is ___
underlying layer that anchors the skin layers to the underlying tissues of the body
j
Jaundice, a condition caused by excessive bile pigments in the skin, results in a yellowish skin color. The skin is often itchy and dry; patients with jaundice are more likely to scratch their skin and cause an open lesion, with the potential for infection.
hiv risk
Assessment needs to include careful examination of the skin for purple blotches that may be indicative of Kaposi’s sarcoma.
piercing assessment
Potential interference with airway management. Potential risk for bacterial and viral infections, scarring, nerve damage, tissue trauma, and deformity.
GI procedure approach
The GI cleansing preparations administered to patients having GI studies done may result in diarrhea, which irritates the sensitive skin in the perianal area—especially if the patient had bouts of diarrhea before the studies; anticipating the problem, noting redness and inflammation, and beginning warm baths and ointments are welcome nursing measures that patients may be too embarrassed to seek.
m
moist desquamation (loss of skin integrity).
c
complex (the dermis and underlying subcutaneous fat tissue are damaged or destroyed).
ecchymosis
a discoloration of the skin resulting from bleeding underneath, typically caused by bruising.
a
Avulsion Tearing a structure from normal anatomic position; possible damage to blood vessels, nerves, and other structures
c
Avulsion Tearing a structure from normal anatomic position; possible damage to blood vessels, nerves, and other structures
a surgical incision can cause a variety of systemic reactions, including increased body temperature, increased heart and respiratory rates, anorexia or nausea and vomiting, musculoskeletal tension, and hormonal changes.
n
f
The blood transports increased numbers of leukocytes, erythrocytes, and platelets to the site of injury. Antibodies are carried by the plasma.
j
Undernourished patients are at greater risk for developing a wound infection because they have difficulty mounting their cell-mediated defense system associated with T-lymphocyte activity, a
l
Various vitamins, minerals, and trace elements are also needed for efficient wound healing. Vitamin A is necessary for collagen synthesis and epithelialization. Vitamin B complex serves as a cofactor of enzyme reactions needed for wound healing. Vitamin C is needed for collagen synthesis, capillary formation, and resistance to infection. Vitamin K is needed for the synthesis of prothrombin. Zinc, copper, and iron assist in collagen synthesis. Manganese serves as an enzyme activator.
,
four phases will be discussed: hemostasis, inflammation, proliferation, and maturation.
d
Hemostasis occurs immediately after the initial injury. Involved blood vessels constrict and blood clotting begins through platelet activation and clustering. After only a brief period of constriction, these same blood vessels dilate and capillary permeability increases, allowing plasma and blood components to leak out into the area that is injured, forming a liquid called exudate. The accumulation of exudate causes swelling and pain. Increased perfusion results in heat and redness. If the wound is small, the clot loses fluid and a hard scab is formed to protect the injury. The platelets are also responsible for releasing substances that stimulate other cells to migrate to the injury to participate in the other phases of healing.
d
The inflammatory phase follows hemostasis and lasts about 4 to 6 days. White blood cells, predominantly leukocytes and macrophages, move to the wound. Leukocytes arrive first to ingest bacteria and cellular debris. About 24 hours after the injury, macrophages (a larger phagocytic cell) enter the wound area and remain for an extended period. Macrophages are essential to the healing process. They not only ingest debris, but also release growth factors that are necessary for the growth of epithelial cells and new blood vessels. These growth factors also attract fibroblasts that help to fill in the wound, which is necessary for the next stage of healing.
x
The proliferation phase is also known as the fibroblastic, regenerative, or connective tissue phase. The proliferation phase lasts for several weeks.
s
Fibroblasts are connective tissue cells that synthesize and secrete collagen and produce specialized growth factors responsible for inducing blood vessel formation as well as increasing the number and movement of endothelial cells.
granulation tissue: new tissue that is pink/red in color and composed of fibroblasts and small blood vessels that fill an open wound when it starts to heal
s