Wound dressings

Question 1

Wound Dressing Functions

Answer 1

• Absorb exudate
• Analgesia
• Protection of the wound
• Prevention infection
• Promote wound healing
• Maintain a high humidity

Question 2

Vet Wound Library

Answer 2

supporting veterinary professionals with the management and treatment of wounds in animal

Question 3

Dressing classification groups

Answer 3

Adherent, non-adherent
Absorbent, non-absorbent
Passive, interactive or bioactive
Occlusive, semi- or non-occlusive

Question 4

Types Of Dressings: Based On Aim
Necrotic tissue

Answer 4

Hydrocolloids, hydrogels, wet to dry and
alginates

Question 5

Types Of Dressings: Based On Aim
Granulation

Answer 5

Non-adherent, hydrogels, foam, film,
hydrocolloids

Question 6

Types Of Dressings: Based On Aim
Epithelialisation

Answer 6

Non adherent, foam

Question 7

Passive Dressings

Answer 7

non-occlusive
gauze and tulle dressings
used to cover the wound

Question 8

Interactive Dressings

Answer 8

semi-occlusive or occlusive
Used as barrier against bacteria
films, foam, hydrogels and hydrocolloids

Question 9

Bioactive Dressings

Answer 9

Collagen,
hyaluronic acid,
honey,
chitosan,
alginate,
elastin
bio textiles

Question 10

Manuka honey

Answer 10

Antibacterial Action:
Moist Wound Healing:
Debridement:
Anti-inflammatory Effects:

Question 11

Aloe vera

Answer 11

retain moisture,
prevent infection,
stimulate cell growth

Question 12

Silver treatments

Answer 12

strongly antimicrobial
Commonly used in burns

Question 13

Materials used for casts -

Answer 13

• Plaster of Paris: Cheap, moldable, heavier, not water-resistant.
• Fiberglass: Lightweight, strong, water-resistant, more expensive.

Question 14

Primary closure (first intention)

Answer 14

Clean wounds,
no skin tension.
Immediate closure

Question 15

Delayed primary closure

Answer 15

Contaminated,
skin tension,
open wound (debrided and lavaged),
sutured after 2-5d

Question 16

Secondary closure

Answer 16

Heavily contaminated,
open wound until clear (>5d),
skin edges excised and sutured

Question 17

Second intention closure

Answer 17

Not closed surgically as too large, heals by second intention

Question 18

Endogenous factors affecting wound healing

Answer 18

• Anaemia
• Nutrition
• Uraemia
• Obesity

Question 19

Exogenous factors affecting wound healing

Answer 19

• Cortisone
• Vit E
• Vit C
• Zinc

Question 20

Desiccation

Answer 20

too little exudate

Question 21

Maceration

Answer 21

too much exudate

Question 22

Identifying Moisture Imbalance

Answer 22

• Thin and watery exudate
• Pus
• dry

Question 23

Changing a wound dressing can drop a wound base temp for
up to how many hours?

Answer 23

4 hours

Question 24

Red viable tissue

Answer 24

Granulating

Question 25

pink viable tissue

Answer 25

epithelialising

Question 26

Aims Of Managing Wounds

Answer 26

1. Decontamination 2. Debridement- removal of devitalised tissue 3. Promote granulation 4. Encourage wound contraction 5. Encourage epithelialisation

Question 27

Enzymatic debridement

Answer 27

Usually in topical ointment (manuka honey)

Question 28

Use of sterile maggots

Answer 28

Biotherapy (Larvae of green bottle fly)

Question 29

Little bacterial contamination: contaminated time frame

Answer 29

0 - 6hrs

Question 30

Bacteria beginning to divide: early infection time frame

Answer 30

6 - 12hrs

Question 31

Bacterial invasion of tissues: infection established time frame

Answer 31

Over 12hrs

Question 32

Pedicle Grafts

Answer 32

Move whole portion of skin and subcutaneous tissue with blood supply

Question 33

Free Skin Graft

Answer 33

No intact blood supply Survive by absorbing fluid from granulation bed

Question 34

Autograft/Autogenous

Answer 34

From skin of same animal

Question 35

Allografts

Answer 35

from another animal of the same species

Question 36

Xenograft

Answer 36

from animal of different species

Question 37

Pinch Grafts

Answer 37

Small plugs

Question 38

Mesh Grafts

Answer 38

Donor sheet of skin made into a mesh

Question 39

Strip Grafts

Answer 39

cut into strips

Question 40

Management of Skin Grafts

Answer 40

bandage for 5-7 days non-adherent primary dressing (paraffine gauze or silicone mesh)

Question 41

Reasons For Skin Grafts Not Adhering

Answer 41

* Dehydration of wound * Infection * Poor blood supply * Graft not anchored adequately * Contamination * Disturbance of graft