Wound Healing and Sutures

Question 1

define wounds

Answer 1

break the continuity of a tissue

Question 2

what are the 3 layers of skin?

Answer 2

1. epidermis
2. dermis
3. subcutaneous

Question 3

describe the epidermis of the skin

Answer 3

contains cells that produce oils and protect the immune system

Question 4

describe the dermis of the skin

Answer 4

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

Question 5

describe subcutaneous tissue

Answer 5

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

Question 6

what are the 4 ways to classify a wound?

Answer 6

1. wound thickness
2. wound complexity
3. wound age
4. wound origin

Question 7

,list and describe the 3 types of wound thickness

Answer 7

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

Question 8

list and describe the 2 types of wound complexity

Answer 8

1. simple: affects only one organ or tissue

2. combined: affects multiple organs and/or tissues

Question 9

list and describe the 2 types of wound age

Answer 9

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

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

Question 10

list and describe the 7 types of wound origin

Answer 10

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.

Question 11

what are the 3 stages of wound healing?

Answer 11

1. inflammation
2. proliferation
3. remodeling

Question 12

describe the inflammation stage of wound healing

Answer 12

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

Question 13

describe the proliferation phase of wound healing

Answer 13

fibroblasts and capillaries migrate to rebuild missing and damaged tissues

Question 14

describe the remodeling phase of wound healing

Answer 14

newly laid collagen fibers reorganize along lines of tension

Question 15

what is wound lavage?

Answer 15

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

Question 16

what is important to remember in wound lavage?

Answer 16

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

Question 17

why must you keep bandages changed in wound care?

Answer 17

because anaerobic environment favors growth of other bacteria so keep clean

Question 18

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

Answer 18

1. diluted chlorohexidine
2. iodine
3. hydrogen peroxide
4. antibiotic

Question 19

what is debridement?

Answer 19

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

Question 20

what are the 3 aspects of wound care?

Answer 20

1. wound lavage
2. debridement
3. wound closure/suture

Question 21

what are the 2 main types of suture?

Answer 21

absorbalble and non-absorbable

Question 22

list 4 suture types

Answer 22

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