Module 5: Skin Integrity & Wound Care Flashcards
What are the steps in assessing a wound?
Redness Edema (swelling) Ecchymosis (bruising) Drainage Approximation (closed = approximation)
What to assess in wound drainage
T - Type of drainage
A - Amount
C - Colour and consistency
O - Odour
What is an acute wound?
I wound that heals in an expected timeframe
Surgical wound
Classification of pressure ulcers:
Purple or maroon localized area of discolored intact skin or blood filled blister due to damaged underlying skin
Suspected deep tissue injury
Classification of pressure ulcers:
Partial-thickness skin loss involving epidermis, dermis, or both
Stage 2
Classification of pressure ulcers:
Intact skin with nonblanchable redness
Stage 1
Classification of pressure ulcers:
Full thickness tissue loss. SC fat may be visible, but no other underlying structures exposed
Stage 3
Classification of pressure ulcers:
Full thickness tissue loss with exposed bone, tendon, or muscle
Stage 4
Classification of pressure ulcers:
Full thickness tissue loss in which the base of the ulcer is covered by slough, eschar or both
Unstageable
How are venous ulcers caused?
Poor blood return
How are arterial ulcers caused?
Inadequate blood flow
How are diabetic ulcers caused?
Neuropathic changes related to diabetes
wound healing by primary intention
- Wound is clean with straight edges, as in a surgical incision
- Edges can be approximated with sutures, staples, or tape
- Infection risk is low
- Healing occurs quickly with minimal scar formation
Wound healing by secondary intention
- Wound is large and irregular with considerable tissue loss (ex. pressure ulcer)
- Longer healing time
- Edges not approximated and healing occurs by granulation tissue
- Scar is usually large and pronounced
Wound healing by tertiary intention
- Wound left open due to possible contamination or debris
- Edges approximated as well as possible with sutures once wound is clean
What are the phases of wound healing?
Inflammatory phase, proliferative phase, maturation phase
What happens in the inflammatory phase of the wound healing?
- Bacteria destroyed and debris removed
- Macrophages arrive to continue clearing debris and also secrete growth factors and proteins that attract immune system cells to the wound to facilitate tissue repair
- Lasts 4 to 6 days and is often associated with edema, erythema (reddening of the skin), heat and pain
What happens in the proliferative phase of wound healing?
3 distinct stages:
1) filling the wound
2) contraction of the wound margins
3) covering the wound (epithelialization)
- often lasts anywhere from 4 to 24 days
What happens during the maturation phase of wound healing?
- New tissue slowly gains strength and flexibility
- Susceptible to interruption due to local and systemic factors, including moisture, infection, and maceration (local); and age, nutritional status, body type (systemic)
- Varies greatly from wound to wound, often lasting anywhere from 21 days to two years
Cleaning a wound
Apply noncytotoxic solution
Irrigation- Removes exudate; use sterile technique with syringe
Debridement- Removal of nonviable tissue
What are the steps for cleaning a wound?
- Clean in the direction from least contaminated area to surrounding skin
- Use gentle friction when applying solutions locally to skin
- When irrigating, allow the solution to flow from the least to most contaminated area
Never use the same piece of gauze twice!
What are the different types of wound drainage?
Serous, purulent, serosanguineous, sanguineous
What are the aspects of serous drainage?
Clear, watery plasma
What are the aspects of purulent drainage?
Thick, yellow, green, tan, or brown