Wound Care 2 Flashcards

1
Q

Acute Wounds

A

induced by surgery or trauma

progress in predictable time and manner

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2
Q

Chronic Wounds

A

Fail to progress through phases of healing

healing is prolonged

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3
Q

Is it possible to accelerate normal healing?

A

No.

But it is possible to improve delayed healing by addressing factors complicating wound repair.

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4
Q

What areas heal more slowly?

A

areas w/decreased vascularity
wounds over bony prominences
areas w/decreased # of epidermal appendages
areas where skin is thicker

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5
Q

Which heals faster- larger or smaller wounds?

A

smaller wounds heal faster

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6
Q

Circle, Square and linear wounds- which is slowest to heal?

A

circle is slowest

linear is fastest

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7
Q

What is a good temp for wounds to heal?

A

98.6-100.4 F

This is because vasculature dilates, tissues are less vulnerable to infection, and oxygen levels are increased.

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8
Q

At what temp will healing slow down?

A

68 F

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9
Q

At 53.6 F what happens to tissue strength?

A

strength decreases and it becomes breakable

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10
Q

Dry Wounds go through phases of inflammation more slowly why?

A

epithelial cell migration is slowed
if covered with 0.2-0.3mm thick crust on top it dries more slowly.
wound will be inflamed and painful

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11
Q

Covered wounds trap wound fluids which…

A

stimulates collagen synthesis
induces angiogenesis
enhances wound contraction

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12
Q

Too much moisture can delay wound healing how?

A

periwound becomes macerated

macerated skin is more fragile and friable

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13
Q

Problems that may occur due to necrotic tissue

A

epithelial cells can only migrate over viable tissue
necrotic tissue provides food for microbes/promotes infection.
foreign bodies contribute to infection and perpetuate inflammatory response

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14
Q

What implies infection?

A

colonization (presence of microbes) does not imply infection..when the amount reaches high enough level THEN healing will be impaired because they compete with body cells for O2 and energy & secrete cytotoxic cells

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15
Q

What number of microbes implies infection?

A

greater than 10 to the 5th per gram of tissue.

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16
Q

What does infection do to the healing process?

A

prolongs inflammation, contributes to wound dehiscence, increases scarring, slows wound healing.

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17
Q

Circulation factors for wound healing

A

it’s possible to have normal macrocirculation but inadequate microcirculation. Diseases that impair microcirculation (PVD, diabetes) impair wound healing

18
Q

What can affect circulation?

A

conditions that promote sympathetic response (fight or flight)
cold, fear, pain

19
Q

Sensation and wound healing

A

deficits may cause failure to relieve pressure

can indirectly retard wound healing by leading to continued trauma

20
Q

Mechanical stress can cause

A

pressure ulcers
periwound edema can restrict blood flow and impede healing.
tension on wound edges may delay wound healing

21
Q

Age related changes that can change wound healing

A
slowed immune response
decreased collagen synthesis
thinner skin
dry skin
decreased pain perception
decreased inflammatory response
decreased vascular response
frequent comorbities
22
Q

Inadequate nutrition causes problems how

A

active cells require energy to fx
carbs are preferred source
if carbs aren’t present, body turns to burning amino acids and can lead to protein depletion—> impairs inflammation, immune response, proliferation, and maturation

Recent food intake more important than food consumed over past weeks or months

23
Q

Comorbidities that may affect wound healing

A

diseases affecting tissue perfusion or oxygenation impair wound healing such as:
PVD
COPD
anemia

24
Q

Immuno compromise increases risk of infection, for example..

A
HIV/AIDS
diabetes
hypothyroidism
aging
steroid use
malnutrition
chemo/radiation
25
Q

Medication that impairs wound healing is:

A

steroids impair all phases by suppressing inflammation and the immune system, decreasing angiogenesis, slowing cell proliferation, decreasing collagen synthesis

Chemotherapy

26
Q

Smoking impairs wound healing by…

A

vasoconstriction
increased platelet aggregation and clot strength
reduced oxygen availability

27
Q

Inappropriate wound management by clinician

A

failure to refer to specialist
failure to follow guidelines
allowing wound to dry out (crust formation)
exposing wound to environment
wet-to-dry dressing (allowing dessication-dryness)
inappropriate use of antiseptics
overuse of whirlpool

28
Q

When is it ok to use whirlpool?

A

wounds w/ thick exudates, slough, or necrotic tissue

29
Q

When is whirlpool contraindicated and why?

A

contraindicated on clean wounds

because it increases edema, traumatizes granulation tissue, retards epithelialization

30
Q

How to measure wound size

A

longest length
widest width
deepest part
not possible to detect depth with eschar covered wound

31
Q

Wound tracing

A

use transparent wrap and trace with a pen

32
Q

Photographic measurement

A

not effective because it’s time consuming and costly

hard to get same angle and lighting each time

33
Q

volumetric measurement of wound

A

measuring either the amount of molding or saline required to fill wound void

34
Q

Molding

A

time consuming
can be painful
molding material may have detrimental effect on wound healing

35
Q

Saline

A

must assure good removal of exudates or saline prior to filling
wound must be perpendicular to gravity
can’t be used on wounds that extend into body cavity or fascial planes

36
Q

Tunneling

A

narrow passage created by separation or destruction to fascial planes (CT that bind tissue)
measured by inserting probe into passage
position described in clock terms

37
Q

Undermining

A

erosion of tissue under wound edges, resulting in large wound w/small opening
measured by inserting probe almost parallel to wound surface under wound edge.
clock terms used to identify area

38
Q

Granulation tissue: healthy vs unhealthy

A

healthy-beefy red appearance

poor blood supply or infected-pale or dusky and friable

39
Q

Necrotic tissue types/amounts

A

slough-yellow or tan and stringy or mucinous
eschar-black. can be soft or hard.
adherent or nonadherent- greater the depth of destruction, the more adherent

40
Q

Chronic wounds often have what type of wound edges?

A

rolled edges

41
Q

Wounds due to diabetes or peripheral neuropathy often have…

A

hyperkeratosis