Module 2 - Surgical Wound Care: suture and staple removal Flashcards
Acute
proceeds through an orderly and timely repair process; results in restoration of anatomical and functional integrity
Causes: trauma, surgical incision
Chronic
fails to proceed through an orderly and timely repair process to produce anatomical and functional integrity
Causes: vascular compromise chronic inflammation, repetitive insults to the tissue
pressure ulcer
impaired skin integrity related to unrelieved, prolonged pressure; localized injury to skin and underlying tissue (usually over a bony prominence) as a result of pressure, or in combination with shear/friction
Braden scale
Risk assessment tool highly reliable when used to identify patients at greatest risk of pressure ulcers, the lower the score the greater the risk
Suspected deep tissue injury (staging pressure ulcers)
purple of maroon localized area of discolored intact skin or blood filled blister due to damaged underlying skin
Stage I
intact skin with nonblanchable redness
Stage II
partial-thickness skin loss involving epidermis, dermis, or both
Stage III
Full thickness tissue loss. SC fat may be visible but no other underlying structures exposed
Stage IV
Full thickness tissue loss with exposed bone, tendon, or muscle
unstageable
full thickness tissue loss in which the base of the ulcer is covered by slough, eschar or both
granulation
red, moist tissue composed of new blood vessels which indicated progression of wound healing
slough
soft yellow or white stringy tissue which needs to be removed before wound will heal (dead tissue)
eschar
black or brown necrotic tissue which needs to be removed before wound will heal (dead tissue)
Venous ulcers
due to poor circulation; the most common type of lower extremity wound - superficial and irregular in shape, large amount of exudate
Arterial ulcer
due to poor circulation - “punched out “ appearance, deeper and smaller than venous ulcer
primary intention
- skin edges are approximated with sutures, staples or tape
- low infection risk
- quick healing with minimal scar
- surgery wound heals by this
secondary intention
- wound is large and irregular with considerable tissue loss
- edges are not approximated
- longer healing time with pronounced scarring
- higher infection risk
tertiary intention
- wounds left open due to possible contamination - require observation
- edges approximated once would is clean
phases of wound healing
Inflammatory phase - incision to post op day 2, hemostasis, phagocytosis, with mild redness and swelling
Proliferative phase - day 3 - 14 -21, collagen strengthens wound, produces scar tissue, granulation tissue is highly vascular. Wound bed whitish then translucent red/friable. Raised healing ridge on sutured wound
Maturation Phase (early) - 2-3 weeks to 6 weeks, collagen reorganized into more orderly structure. Raised scar formation
Maturation Phase (later) - 6 weeks to 1-2 years. Scar tissues has < 80% of original tissue strength. Flat, thin scar.
intrinsic factors affecting wound healing
health status, diabetes, circulation, anemia, immune status, age, nutritional status/fluid balance
Extrinisic factors affecting wound healing
mechanical stress, debris, microorganisms, temperature, infection, chemical stress, medication, radiation
hemorrhage
(bleeding from a wound site) normal during and immediately after initial trauma but not after hemostasis has occurred
internal - look for distension or swelling a change in the type and amount of drainage, or signs of hypovolemic shock
external - look for amount of saturation to dressing
risk of hemorrhage is greatest during the first 24-48 hours after surgery or injury
dehiscene
partial or total separation of wound layers
evisceration
protrusion of visceral organs through a wound opening
fistula
abnormal passage between two organs or between an organ and the outside of the body
REEDA
redness edema ecchymosis drainage approximation
TACO
type
amount
colour and consistency
odor
serous drainage
clear, watery plasma
purulent
thick, yellow, green, tan or brown
serosanguineous
pale, red, watery; mixture of clear and red fluid
sanguineous
bright red: indicates active bleeding
Types of sutures
Intermittent : surgeon ties individual suture made in skin
Continuous: series of sutures with only two knots (one at the beginning and one at the end)
Retention: places more deeply than skin sutures, nurses may or may not remove them depending on policy