Wound Healing and Sutures Flashcards

1
Q

define wounds

A

break the continuity of a tissue

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2
Q

what are the 3 layers of skin?

A
  1. epidermis
  2. dermis
  3. subcutaneous
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3
Q

describe the epidermis of the skin

A

contains cells that produce oils and protect the immune system

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4
Q

describe the dermis of the skin

A

contains nerve endings, oil, sweat glands, and hair follicles

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5
Q

describe subcutaneous tissue

A

made up of fat, connective tissue, and large blood vessels

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6
Q

what are the 4 ways to classify a wound?

A
  1. wound thickness
  2. wound complexity
  3. wound age
  4. wound origin
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7
Q

,list and describe the 3 types of wound thickness

A
  1. superficial: loss of epidermis only
  2. partial thickness: loss of epidermis and dermis
  3. full thickness: loss of dermis, subcutaneous fat, and sometimes bone
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8
Q

list and describe the 2 types of wound complexity

A
  1. simple: affects only one organ or tissue

2. combined: affects multiple organs and/or tissues

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9
Q

list and describe the 2 types of wound age

A
  1. fresh: less than 8 hours from the tie of injury

2. old: more than 8 hours from the time of injury

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10
Q

list and describe the 7 types of wound origin

A
  1. superficial: break in the skin’s surface
  2. incised: a result of surgical intervention
  3. crush: a result of heavy blow with a cutting tool
  4. lacerated: fragments of tissue torn away with a sharp-edged object
  5. stab: made with a pointed tool or weapon
  6. contused: tissue injury under the skin’s sirface
  7. secondary: diabetic ulcers, pressure ulcers, venouc ulcers, etc.
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11
Q

what are the 3 stages of wound healing?

A
  1. inflammation
  2. proliferation
  3. remodeling
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12
Q

describe the inflammation stage of wound healing

A

coagulation to control the bleeding and migration of immune cells to fight bacteria and damaged tissue

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13
Q

describe the proliferation phase of wound healing

A

fibroblasts and capillaries migrate to rebuild missing and damaged tissues

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14
Q

describe the remodeling phase of wound healing

A

newly laid collagen fibers reorganize along lines of tension

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15
Q

what is wound lavage?

A

shaving and use of sterile saline to clean a wound; use of antiseptic occasionally

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16
Q

what is important to remember in wound lavage?

A

whe cleaning after, make sure edges are bleeding, so new cells can get there (fibroblasts)

17
Q

why must you keep bandages changed in wound care?

A

because anaerobic environment favors growth of other bacteria so keep clean

18
Q

what are the 4 agents used to clean wounds in wound lavage?

A
  1. diluted chlorohexidine
  2. iodine
  3. hydrogen peroxide
  4. antibiotic
19
Q

what is debridement?

A

removal of the dead tissue; great place for bacteria to grow

20
Q

what are the 3 aspects of wound care?

A
  1. wound lavage
  2. debridement
  3. wound closure/suture
21
Q

what are the 2 main types of suture?

A

absorbalble and non-absorbable

22
Q

list 4 suture types

A
  1. simple interrupted
  2. continuous
  3. simple cross
  4. horizontal mattress