wound products

Question 1

list 5 types of debridement

Answer 1

autolytic
surgical
conservative
mechanical
low frequency ultrasound

Question 2

describe autolytic debridement

Answer 2

the use of rehydrating or moisture retention dressings to assist autolysis of non-viable tissue.

Question 3

name the hydrosurgical device that is used in surgical debridement

Answer 3

versajet

Question 4

describe concervative sharps debridement

Answer 4

the conservative removal of loose, non-viable tissue in a wound performed under aseptic conditions.

Question 5

list the 2 types of mechanical debridement

Answer 5

wet to dry
wound irrigation

Question 6

describe wet to dry mechanical debridement

Answer 6

dressings where an open mesh gauze is moistened with normal saline and allowed to dry. Debris adheres to dressing and is removed

Question 7

describe wound irrigation

Answer 7

pressure from the irrigation solution to remove debris from the wound.

Question 8

describe low frequency ultrasound debridment

Answer 8

utilises low frequency waveforms to cause cavitation. vibration of liquid back and forth with pressure creates rapid movement of fluid against wound bed that a vaccume is created

Question 9

what is the main benefit to LFUD

Answer 9

can kick start a chronic wound back into healing mode through vasodilation and vasospasm increasing blood flow.

Question 10

list 5 reasons for dressing wounds

Answer 10

optimal environment
protect the wound
maintain temperature
prevent bleeding
promote drainage

Question 11

list 5 ideal criteria for wound products

Answer 11

optimal environment
allows GE
affordable
reduce amount of changes necessary
sterile

Question 12

list 5 functions of a secondary product

Answer 12

to hold
to support
to protect
keep closed
camouflage

Question 13

what is the function of hydrocolloid products

Answer 13

provides a most environemnt, reducing dead space.

Question 14

function of cavity dressings

Answer 14

highly absorbent, retaining exudate within the product thus reducing amount of times DC required.

Question 15

how do odour absorbing dressings work

Answer 15

incorporate activated charcoal that absorb odour, bacteria and exudate.

Question 16

functions of interactive wet dressings

Answer 16

cleanses the wound
debrides and desloughs
absorbs exudate
minimal wound bed adherence

Question 17

how do collagen dressings work

Answer 17

freeze dried collagen gel forming dressings which are designed to be a protease modulating matrix.

Question 18

what is NPWT

Answer 18

vacuum assisted pressure below the wound surface to help promote healing. Topical negative pressure applies non compressive mechanical forces which allows arterioles to dilate and increase blood flow.

Question 19

benefits of NPWT

Answer 19

moist wound environment
reduced bacterial colonisation
reduces localised oedema
promotes granulation and epithelialisation
facilitates collection of wound exudate.

Question 20

when is NPWT contraindicated

Answer 20

when necrotic tissue is present

Question 21

what type of solution is sterile normal saline

Answer 21

isotonic

Question 22

what type of solution is sterile water

Answer 22

hypotonic

Question 23

what type of solution is chlorhexidine gluconate

Answer 23

not isotonic

Question 24

what type of solution is polyhexaethylene biguanide

Answer 24

sufactant antimicrobial

Question 25

list 4 things that cause dry skin

Answer 25

weather
AC
sun exposure
aging

Question 26

what is the peri-wound

Answer 26

area of skin within a 4cm radius of the wound edge

Question 27

list 2 examples where semi permeable film dressings are used

Answer 27

blisters and cannula

Question 28

how do semi permeable film dressings work

Answer 28

adhesive, thin transparent, semi permeable poluurethane films.

Question 29

how do hydrocolloids dressings work

Answer 29

incorporate absorbent particles bound to a repellent polymer. moisture retentive and convert to gel at wound interface.

Question 30

describe the type of wound hydrocolloids are mostly used for

Answer 30

low to mod exudate
shallow wounds
dressing can remain for many days.

Question 31

describe polyurethane foam dressings

Answer 31

sheets or cavity fills
some have silicone som have a semi permeable waterproof layer

Question 32

describe the type of wound that polurethane foam dressings can be used for

Answer 32

minimum to high exudate
shallow to moderate cavity wounds
abrasion, skin tears

Question 33

describe non-adherent dry or film coated dressings

Answer 33

contain a perforated polyester film or non stick agent, attached or bonded to a cotton or acrylic absorbent pad.

Question 34

describe the wound where island dressings are used

Answer 34

low exudating wounds

Question 35

what 2 antiseptics are added to the tulle gras dressing

Answer 35

chlorhexidine and providone iodine

Question 36

when are hydrogels ideal

Answer 36

dry wounds and necrotic sloughy wounds

Question 37

function of using sterile normal saline

Answer 37

it is sterile and non-antiseptic

Question 38

function of sterile water

Answer 38

it is sterile and non antiseptic

Question 39

function of chlorhexidine

Answer 39

sterile, single use, inactivated if used with soaps

Question 40

function of polyhexaethylene

Answer 40

lowers liquid surface tension, allowing greater spread and facilitating seperation of non viable tissue

Question 41

function of octenidine dihydrochloride

Answer 41

lowers liquid surface tension allowing greater spread and facilitating seperation of non viable tissue

Question 42

function of microdacyn

Answer 42

oxidising molecules similar to those produced by the body in response to infection