Wound Care Day 1 Flashcards

1
Q

Functions of Skin

A

thermoregulation, sensation, metabolism of Vit. D, protection from shear, protection from water loss

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2
Q

aging effects on skin

A

decreases: thickness, fatty layer, collagen/elastin, sensation, metabolism, sweat glands, circulation, epidermal regeneration

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3
Q

Epidermis

  • regenerates in ____
  • prevents ____
  • synthesizes ___
  • provides ____
  • protection from ____
A
  • 45-75 days
  • water loss (90% keratinocytes)
  • vit. D
  • pigmentation
  • shear, friction, toxic irritants
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4
Q

Dermis

  • houses ____
  • ___ layer of skin
  • provides _____ and ____
A
  • sensory organs and vasculature
  • thickest (2-4 cm
  • structure (collagen) and elasticity (elastin)
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5
Q

Hypodermis

  • contains ___
  • provides ____
  • also called
A
  • deep blood vessels and nerve endings
  • insulation, energy reserve, cushion
  • superficial fascia
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6
Q

4 phases of wound healing

A

hemostasis, inflammatory, proliferation, remodeling

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7
Q

components of hemostasis

A

immediate, vasoconstriction, platelet aggregation, fibrin deposition- clot is end product

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8
Q

components of inflammatory phase

A

clean wound site for tissue restoration, vasodilation, phagocytosis

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9
Q

signs of inflammatory phase

A

red, blue or purple skin, warm, pain, 3-7 days

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10
Q

components of proliferation

A

skin integrity restored, 3-5 days to 3 weeks, angiogenesis, granulation, collagen synthesis, wound contraction

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11
Q

components of remodeling phase

A

will not exceed 70-80% tensile strength of original (only 15% at closure), 21-28 days post injury up to 2 years,

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12
Q

chronic remodeling

A

imbalance in collagen synthesis and lysis, dehiscence, keloids

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13
Q

acute wounds

A

healing sequence continuous and within expected time frame, little complications, can get overreaction in healing (hypertrophic scars/keloids)

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14
Q

chronic wounds

A

delay/failure of healing component, associated with repeated trauma, poor oxygenation, dormant, secescent cells

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15
Q

when should a wound be assessed?

A

each time it is observed, and documentation should happen at least weekly

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16
Q

How to measure wounds

A

length x width x height
in centimeters always
length- 12-6
width- 9-3

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17
Q

depth

A

measure deepest area of wound bed, document clock time of undermining, tunneling, straight depth

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18
Q

tunneling/sinus tract

A

tissue loss into the depths of the wound, dead space, measure pathway and document on clock time

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19
Q

undermining

A

tissue loss parallel to wound surface

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20
Q

Stages for all wounds except pressure ulcers

A

partial thickness- into but not through dermis

-full thickness- through dermis into subcutaneous tissue & muscle may be exposed

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21
Q

Periwound inspection and palpation must be at least within ____

A

4cm of wound edge

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22
Q

edema measurement

A

0-1/4 inch: 1+ mild
1/4-1/2 inch: 2+ moderate
1/2-1 inch: 3+ severe
>1 inch: 4+ very severe

23
Q

arterial occlusion

A

if capillary refill is longer than 2-3 seconds

24
Q

pulse grading

A
0= absent
1+= barely palpable
2+= palpable, but diminished
3+= normal
4+=prominent, suggestive of aneurysm
25
ABI
ankle systolic/ brachial systolic | measures quality of blood flow to area
26
Transcutaneous Oxygen measurement
30 mmHg will heal/debridement safe
27
ABI results >1 <.3
``` calcified vessels arterial disease mild disease claudication debridement contraindicated compression contraindicated tissue loss ```
28
Tissue types that could be present in a wound bed
eschar, slough, fibrin, granulation tissue, epithelium
29
exudate - what is it? - what to document
- drainage | - amount, color, character (serous, serosanguinous, purulent, dressing residue)
30
types of wounds
burns, arterial insufficiency, diabetic/neuropathic, pressure ulcers
31
Superficial burns
epidermal involvement, erythema, tenderness, pain | -sunburn, hot liquid
32
superficial partial thickness burns
dermal involvement, large blisters, pain, edema, weeping | -hot liquid, flame injury, flash injury
33
deep partial thickness burns
small amount of dermis remains, white or charred, blood flow compromised, less pain -flame, chemical, electrical
34
full thickness burn
into or through subcutaneous tissue | -flame, chemical, electrical injury
35
arterial wound
result of complete or partial arterial blockage limiting perfusion causing tissue necrosis/ulceration
36
illnesses associated with arterial wounds
coronary disease, CHF, COPD, hypertension, DM, ESRD, hypercholesterolemia
37
arterial wounds - locations - surrounding skin - pulses
between toes and tips of toes, dorsal aspect of foot and over phalangeal heads, lateral malleolus, tibia - thin dry skin, absence of hair, shiny, smooth, cool to touch - absent or diminished
38
arterial wounds - characteristics - symptoms
- dry gangrene, punched out, smooth edges, erythematous halo, black/gray necrotic tissue - wound is painful, decreased pain and increased redness in dependent position, claudication
39
Chronic venous insufficiency ulcers - pathology - associated symptoms
- caused by valvular incompetence, obstruction of deep venous system, or congenital absence or malformation of venous valves - dull ache or heaviness, c/o pain in dependent position, decreased pain with elevation
40
venous ulcers - location - wound characteristics - surrounding skin - pulses
- superior to malleoli, usually medial - eschar/slough, wet, yellow, exudate, irregular and shallow wound edges - dry and scaly, varicose veins, hemosiderin staining - present
41
diabetic ulcers - location - causes
- tips of toes, lateral foot, dorsum, metatarsal heads, heels, deformities - neuropathic (60-70%), PVD, if to bone 90% have osteomyelitis
42
diabetic ulcers - symptoms - surrounding skin - effect on healing
- delayed - cracking, callous formation - decreased collagen deposition, delayed everything
43
diabetic neuropathies
sensory- most common autonomic motor
44
contributing factors to pressure ulcers
pressure, shear, friction, moisture
45
pressure ulcer risk factors
age, nutrition, smoking, low BP, poor O2 perfusion
46
Pressure ulcers stage 1
intact skin, non-blanchable redness
47
pressure ulcer stage 2
partial thickness loss of dermis presenting as a shallow open ulcer with a red pink wound bed, without slough. may present as an intact or serum filled blister
48
pressure ulcer stage 3
Full thickness tissue loss, subcutaneous fat may be visible, but not bone, tendon or muscle. May include undermining/tunneling
49
pressure ulcer stage 4
full thickness loss with exposed bone, tendon or muscle. often include undermining and tunneling
50
pressure ulcer-unstageable
full thickness tissue loss when base is covered and you can't see depth
51
deep tissue injury
purple or maroon area of discolored intact skin or blood filled blister from pressure and/or shear.
52
``` bruises 0-2 days 2-5 5-7 7-10 10-14 2-4 weeks ```
- red - blue - green - yellow - brown - clear
53
Skin tear categories
1- no tissue loss 2- partial tissue loss 3- complete tissue loss