14142891
Description
Flashcards by Elizabeth Then, updated more than 1 year ago
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Created by Elizabeth Then
over 6 years ago
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| Question | Answer |
| Basic principles of VAC therpay | vacuum assisted closed, non-invasive, active, wound-closure system controlled by negative pressure, to promote healing in acute and chronic wounds |
| VAC micro/macro strain | microstrain - what you can't see macrostrain - what you can see, biological response, draws wound edges together, removes infectious material, reduces oedema, promotes perfusion micro- negative pressure creates tissue microdeformation that lead to cell stretch, granulation tissue formation |
| VAC | draws wound edges toegther closed moist environment faster granulation tissue formation |
| Contraindications for VAC | malignancy, osteomyelitis, necrosis, non-enteric, fistula, exposed blood vessels |
| precautions for VAC | active bleeding, difficult wound haemostasis, anticoagulant therapy, weakened blood vessels, organs, bone fragments, sharp edges, |
| planning and defining wound treatment objective | aims: remove exuduate, reduce local periwound oedema, increase local microvascular blood flow test, promote formation of granulation tissue, reduce complexity and size of wound, optimise wound bed prior to surgery, reduce complexity of surgical wound closure |
| Granufoam - dressing retains open-cell structure | open- cell structure during therapy assists granulation tissue formation due to reticulated open cell structure well -suited to highly exudate, infectious wounds, increase drainage capacity allows uniform distribution of negative pressure multiple sizes and shape |
| four options of dressin types | VAC granufoam - all open wounds, uniform distribution of pressure, hydrophobic Granufoam silver - infected wounds, microbonded, reduced pathogen in 24 hours whitefoam - sensitive wounds, tunnels, underminsed, controlled granulation rate, superficial wounds, increased density, hydrophillic, pre-moistened with sterile water NPWT gauze dressing - sensitive wounds, tunnels, undermined, controlled granulation rate, superficial wounds |
| sensat rac technology | removes exudate, which contain material that inhibit wound healing, help maintain consistent environment, monitors pressire, feedback system, 2 sensors monitor target pressure at wound site |
| changing of VAC dressings | once every 48-72 hours, but no less than three times a week infected wounds may need more dressing changes |
| VAC VERAFLO therapy may help to | increase granulation rate reduce trips for debridement and wash out decrease hospital stay |
| VAC THERAPY CONTRAINDICATIONS | Do not use hydrogen peroxide based solutions, do not deliver fluids to thoracic or abdominal cavities as this can later core body temp and fluid retention Do not use unless wound is thoroughly explored |
| When to discontinue VAC | goals have been met wound shows no progress for 1-2 weeks |
| dressing techniques for VAC | getting a seal - use small pieces, get seal check, cut hole at least 2.5 cm, document numer of pieces of foam used |
| dressing removeal | turn off VAC, allow dressing to relax administer analgesia, count pieces of foam removed, |
| ADAPTIC | protects the wound, minimise pain and maceration non-adhering dressing, knitted cellulose acetate mesh, impregnated with petrolatum emulsion ADAPTIC TOUCH - non-adhering silicone dressing, flexible openmesh, fluid management, minimise pain |
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