Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
11 Cards in this Set
- Front
- Back
|
When would you use NPWT?
|
- Non-healing chronic wounds i.e. pressure ulcers
- Arterial, venous, diabetic ulcers - Dehisced surgical wounds - Traumatic wounds - Infected wounds - Skin graft sites - Burns |
|
|
When would you not use NPWT?
|
- Active bleeding (or on blood vessels)
- Vulnerable body organs - Malignancy in wound tissue - Dry, necrotic tissue - Osteomyelitis-untreated - Anti-coagulation therapy (with caution) |
|
|
What are the benefits of NPWT?
|
- Cost effective
- Easy to use - Increases granulation tissue - Increases wound contraction - Promotes epithelialization - Absorbs heavy exudate - Reduces bacterial burden - Improves/heals chronic ulcers |
|
|
What are the mechanisms of action of NPWT?
|
- Increased local blood flow to the skin
- Reduced interstitial edema - Control of exudate - Stimulation and the formation of granulation tissue - Removal of healing inhibitors (mettaloproteinases) - Stimularion of cell proliferation (fibroblasts, endothelial cells, vascular smooth muscle) - Stimulation of wound edge approximation (reverse tissue expansion) - Reduction in bacterial wound burden |
|
|
What would you include in the wound assessment?
|
- Reviewing the underlying wound etiology
- Mapping the wound site - Measuring the wound size - Assessing the type ot tissue involved - Reviewing the condition of peri-wound margins - Identifying the presence of infection - Assessing the level of exudate odour and pain |
|
|
When would you use the black colored foam (polyurethane, GranuFoam)?
|
- Most effective in stimulating granulation tissue and wound contraction
- Heavily exuding and infectious wounds - Deep wounds and cavities |
|
|
When would you use the white colored foam (polyvinyl alcohol)?
|
- When growth of granulation tissue needs to be restricted (ie. prevent tissue growing into the dressing)
- Fistulae/cavities and smaller spaces |
|
|
When would you use the silver colored foam (GranuFoam Silver)?
|
- Same as the black foam
- Bacterial barrier properties of silver |
|
|
What are some other NPWT dressings available?
|
- Precut foams for anatomical difficult areas (eg. fingers, toes, hands, feet)
- Bridge dressing for pad placement away from wound while protecting skin |
|
|
What are some potential issues with NPWT?
|
- Frequent failure of the dressing due to awkward anatomical wound location
- Poor application technique - Pain - Allergic reaction to dressing drapes - Pressure damage to wound walls or peri-wound tissue (suction-like marking) - Granulation growth into the dressing - Fistulae formation and increased blood flow into neoplastic tissues (counterindicated for NPWT) |
|
|
What are some nursing considerations?
|
- Make adjustments for canister changes, patient mobility and pain relief
- Analgesia may be required when commencing NPWT - Care needs to be taken with regards to patient hygiene such as showering |
