L6 Flashcards
4 stages of wound healing
Hemostasis phase
( control blood loss, seal the wound)
Inflammatory phase
( white cell located at wound location to kill bacteria) ( release growth factors for epithelia cells)
Proliferation phase
( new tissue built to fill the wound space)
A thin layer of epithelial cells form across the surface of wound)
Remodelling phase
Collagen take months to years to remodel and contract to form stronger bond
May form scars
Factors affecting woung healing
Age
Genral health condition
Nutritional status
Lifestyle
Repeat trauma: edema, infection
Nutrition that promote wound healing
Protein: maintain and repair body tissue
Iron: maintain adequate level of haemoglobin level
Vitamin c: increase stability and strengths between collagen
Zinc: helps in DNA replication
Classification of wound
Epithelialising wound
Granulating wound
Slough
Infected wound
Necrotic woundwound undermining
Complication of wound
Haemorrhage
Infection
Dehiscence
Evisceration
Prevention of pressure injury
Frequent position change ( Q2H)
Keep the bed head lowest to prevent shearing
Pad pressure sore point with relieving device
Proper positioning & transfer technique
Assessment of wound
Wound appearance
Presence of wound drain
Surrounding skin
Sign of infection
Wound pain
Principle of aseptic technique
- All objects used in sterile field must be sterile
- Sterile object become unsterile when touched by unsterile object
- Sterile item out of vision / below waist are considered unsterile
- Sterile object can become unsterile by prolong exposure
- Fluid flow in direction of gravity
6.moisture passes through a sterile object bring microorganism from unsterile surface to sterile object - The edge of sterile field are considered as unsterile
- Clean the wound in proper direction
Lifestyle affecting oxygenation
Obesity
Sedentary lifestyle
Cigarette smoking
