wounds Flashcards

1
Q

wounds

A

described as a physical injury causing a break in the skin or mucous membrane. Most common types of wounds are trauma (accidental or self-inflicted) wounds, surgical incisions, and several types of ulcers. When the skin’s integrity is broken, the internal environment is open to microorganisms that may be harmful. Wounds may be unintentional or intentional.

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2
Q

wound recognition

A

people commonly experience wounds, the ability to recognize various wounds is important in determining the plan of care and facilitating wound healing.

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3
Q

Arterial bleeding

A

– blood comes in spurts with each heartbeat and is bright red or pink. Usually the most severe type of hemorrhage. Arterial bleeding is a serious medical emergency.

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4
Q

Venous blleding

A

blood flows steadily and is dark in color. Usually, venous bleeding is minor and stops by itself.

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5
Q

capillery bleeding

A

blood oozes out of the wound

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6
Q

contusion

A

injury to soft tissue underneath the skin from a force from a hard object, also called a bruise. Epidermis remains intact but the blood vessels in the dermis are damaged

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7
Q

Abrasion

A

a wound in which the surface layer of skin is ripped away

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8
Q

laceration

A

caused by a sheer force that separates the tissue, cut can be irregular and sharp.
can be caused by sharp or blunt object

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9
Q

puncture

A

sharp object passing through the skin. opening maybe small and depth may not be visible

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10
Q

projectile

A

a perforating puncture wound. this wound may have a entrance and exit wound

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11
Q

amputations

A

the partial or complete severance of a body part. Jagged skin and bones may be exposed. There may be massive bleeding or the force of the blast closes of blood vessels

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12
Q

fracture

A

A break in a bone, classified as open or closed fractures

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13
Q

dislocation

A

disruption or coming apart of a joint

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14
Q

Burns/ types of burns

A

Burn injuries can involve structures below the skin, including muscles,
bones, nerves, and blood vessels. Burns can be classified based on agent source and
by depth.
thermal, electrical, chemical, radiation, light

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15
Q

Burn descriptions

A

Thermal Burns: involves heat from flame, fire, steam, hot liquids, ect.

(II) Chemical Burns: involves various acids, bases, and caustics.

(III) Electrical Burns: involves alternating current, direct current, and lightning.

(IV) Light Burns: from intense light sources such as lasers.

(V) Radiation Burns: usually from nuclear sources and ultraviolet light.

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16
Q

superficial burn

A

only involves the epidermis and is characterized with

reddening of the skin and some swelling. An example is sun burn. (1st degree burn)

17
Q

partial thickness burn

A

the epidermis is burned through and the dermis is
damaged. Reddening, blisters, and a spotted appearance of the skin is present. (2nd
Degree burn)

18
Q

full thickness burn

A

all layers of the skin are damaged. May appear
charred and black or dry and white. Enough nerves may be damaged where the
patient may not experience pain. Peripheral to the burn may be painful due to partial thickness burns. This type of burn requires skin grafting.

19
Q

Principles of Wound Healing:

A

Wound healing is the organized and orderly process
by which wounds close and tissue regains continuity. The human body will attempt to
return to homeostasis after experiencing a wound. The process of wound healing
occurs over time. The more severe the wound the longer the wound healing.

20
Q

wound

A

Trauma to any of the tissues of the body, especially that which is
caused by physical means and with interruption of the continuity.

21
Q

inflammation

A

: A localized, proactive response elicited by injury or destruction of
tissue.

22
Q

edema

A

The abnormal accumulation of excessive fluid in the intercellular
spaces. The fluid is high in large molecule proteins that are the building blocks of new
tissue.

23
Q

infection

A

Invasion of bacterial or viral pathological agents into a wound causing
a local or systemic response.

24
Q

scar

A

Fibrous tissue replacing normal tissues destroyed by injury or disease

25
Q

open wound

A

Injury in which the skin is interrupted, exposing the tissue beneath.

26
Q

closed wound

A

Internal Injury with no open pathway from the outside

27
Q

Black wound

A

) black wound ranges from dark brown to gray black in color

(II) Wound is covered in thick necrotic (dead) tissue, which provides a medium
for bacteria to grow.

(III) Debridement or in extensive wounds, amputation is required to remove the necrotic tissue to prevent a gangrene condition.

28
Q

Yellow wound

A

Yellow wound may range in color from a creamy ivory to a canary yellow

(II) Infected wound: usually contains pus, yellow fibrous debris, and has a
distinctive odor.

(III) Continual cleansing, removal of nonviable tissue, and absorption of excess
drainage are very important in managing this type of wound.

29
Q

Red wound

A

Wound is uninfected, hearing according to a predictable schedule and is
usually red or pink in color

(II) Red wound has defined borders, granulation tissue and revascularization.

(III) Superficial wounds and acute partial or second degree-burns are classified
as red wounds if they are uniformly pink in appearance.

30
Q

Wound Healing processes

A

Inflammatory

  • hemostasis and fibrin net: 3-5 days
  • fibroblastic/ proliferation:5 days -3 weeks
  • maturation/ remodeling: 3 weeks- 2 years
31
Q

Inflammatory phase

A

II) Hemostasis occurs with stopping the flow of blood via vasoconstriction,
abnormal obstruction (plaque), coagulation (clotting) or surgical intervention. Clotting
forms by reducing blood flow to the injured blood vessel and platelets passing through
the injured vessel begin to stick to the collagen fibers. A fibrin net is created when
collagen fibers form thread to create a mesh-like framework. Red blood cells, platelets
become trapped and dry to form scabs.

White blood cells such as neutrophils and macrophages engulf and destroy
bacterial and microscopic foreign objects during inflammatory phase.

32
Q

fibroblastic/proliferation

A

) Epithelial cells, fibroblasts, and endothelial cells produce growth factors. Collagen is produced increase strength of the wound to hold it closed.

(III) Granulation tissue forms to allow epithelial cells to move across new tissue to form a barrier between the wound and environment.

33
Q

remodeling/maturation

A

Collagen production and degradation equalize, via collagen synthesis and collagen lysis. (When new collagen is produce, old collagen is destroyed).

(III) Tensile strength of the wound is increased via scar formation. Scars lose their read appearance as blood vessels no longer needed for wound healing are destroyed within the new tissue. Scar tissue has 80% strength compared to unwounded skin

34
Q

Delayed Healing

A

Factors causing delayed healing: smoking, poor nutrition, alcoholism, diabetes,
renal and liver disease, vascular sufficiency, immunosuppressive agents, excessive steroid use, and connective tissue diseases.