Podcast
Questions and Answers
Which of the following factors can interfere with wound healing?
Which of the following factors can interfere with wound healing?
Older adults tend to heal more quickly than children and healthy adults.
Older adults tend to heal more quickly than children and healthy adults.
False (B)
What is the primary reason why adequate blood flow is essential for wound healing?
What is the primary reason why adequate blood flow is essential for wound healing?
Adequate blood flow delivers nutrients and oxygen to the wound area, while removing toxins, bacteria, and debris.
Dead tissue present in a wound is called ______ or ______.
Dead tissue present in a wound is called ______ or ______.
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Match the following nutritional components with their role in wound healing:
Match the following nutritional components with their role in wound healing:
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Sutures are beneficial in closing surgical wounds but can also hinder healing due to their foreign body nature.
Sutures are beneficial in closing surgical wounds but can also hinder healing due to their foreign body nature.
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Why can obesity affect wound healing?
Why can obesity affect wound healing?
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Which of the following is NOT a systemic factor that can affect wound healing?
Which of the following is NOT a systemic factor that can affect wound healing?
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Which of the following best defines a wound?
Which of the following best defines a wound?
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A wound can be defined as a minor scrape on the skin only.
A wound can be defined as a minor scrape on the skin only.
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What are two factors that can affect wound healing?
What are two factors that can affect wound healing?
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A wound is defined as a break or disruption in the normal integrity of the skin and __________.
A wound is defined as a break or disruption in the normal integrity of the skin and __________.
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Match the following types of wounds with their definitions:
Match the following types of wounds with their definitions:
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What is a possible indication of delayed healing or infection in a wound?
What is a possible indication of delayed healing or infection in a wound?
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The wound edges being separated indicates that dehiscence is likely present.
The wound edges being separated indicates that dehiscence is likely present.
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What are the three types of wound drainage?
What are the three types of wound drainage?
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To promote wound healing and reduce the risk of abscess formation, drains may be inserted in or near a wound to promote _____ .
To promote wound healing and reduce the risk of abscess formation, drains may be inserted in or near a wound to promote _____ .
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Match the following signs of infection with their corresponding descriptions:
Match the following signs of infection with their corresponding descriptions:
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What is the primary focus of patient care during the maturation phase of wound healing?
What is the primary focus of patient care during the maturation phase of wound healing?
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Scar tissue is more elastic than uninjured tissue.
Scar tissue is more elastic than uninjured tissue.
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What is the effect of pressure on wound healing?
What is the effect of pressure on wound healing?
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The phase of wound healing that begins about 3 weeks after an injury is called the _____ phase.
The phase of wound healing that begins about 3 weeks after an injury is called the _____ phase.
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Which phase of wound healing typically involves the formation of granulation tissue?
Which phase of wound healing typically involves the formation of granulation tissue?
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Match the following wound healing phases with their characteristics:
Match the following wound healing phases with their characteristics:
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Desiccation refers to the overhydration of cells.
Desiccation refers to the overhydration of cells.
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What happens to collagen during the maturation phase of wound healing?
What happens to collagen during the maturation phase of wound healing?
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What is the liquid that forms at an injury site due to increased capillary permeability?
What is the liquid that forms at an injury site due to increased capillary permeability?
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Macrophages are primarily responsible for the formation of new blood vessels during the inflammatory phase.
Macrophages are primarily responsible for the formation of new blood vessels during the inflammatory phase.
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What characterizes acute inflammation at the injury site?
What characterizes acute inflammation at the injury site?
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During the inflammatory phase, the patient's body may show a mildly elevated __________.
During the inflammatory phase, the patient's body may show a mildly elevated __________.
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Match the following phases of healing with their descriptions:
Match the following phases of healing with their descriptions:
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Which cells arrive first at the wound site during the inflammatory phase?
Which cells arrive first at the wound site during the inflammatory phase?
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Granulation tissue is characterized as being poorly vascularized and does not bleed easily.
Granulation tissue is characterized as being poorly vascularized and does not bleed easily.
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What role do fibroblasts play during the proliferation phase?
What role do fibroblasts play during the proliferation phase?
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Which condition can compromise wound healing?
Which condition can compromise wound healing?
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Corticosteroids can enhance the inflammatory process to aid wound healing.
Corticosteroids can enhance the inflammatory process to aid wound healing.
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What is the term for the protrusion of viscera through the incisional area?
What is the term for the protrusion of viscera through the incisional area?
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The presence of ______ can increase the risk for infection and skin breakdown postoperatively.
The presence of ______ can increase the risk for infection and skin breakdown postoperatively.
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Match the wound complications with their definitions:
Match the wound complications with their definitions:
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What is a common result of postoperative fistula formation?
What is a common result of postoperative fistula formation?
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Signs of infection include a swollen and deep red wound.
Signs of infection include a swollen and deep red wound.
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What happens to the color of a healthy surgical wound after one week?
What happens to the color of a healthy surgical wound after one week?
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Flashcards
Definition of Wound
Definition of Wound
A break or disruption in the normal integrity of the skin and tissues.
Types of Wounds
Types of Wounds
Different categories of wounds, such as acute, chronic, open, and closed.
Physiology of Wound Healing
Physiology of Wound Healing
The biological process your body uses to repair wounds.
Factors Affecting Wound Healing
Factors Affecting Wound Healing
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Complications of Wound
Complications of Wound
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Corticosteroids
Corticosteroids
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Radiation Therapy
Radiation Therapy
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Chronic Illness Impact
Chronic Illness Impact
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Immunosuppression
Immunosuppression
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Infection Complications
Infection Complications
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Dehiscence
Dehiscence
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Fistula Formation
Fistula Formation
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Wound Assessment
Wound Assessment
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Platelet Activation
Platelet Activation
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Exudate
Exudate
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Inflammatory Phase
Inflammatory Phase
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Macrophages
Macrophages
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Growth Factors
Growth Factors
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Proliferation Phase
Proliferation Phase
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Granulation Tissue
Granulation Tissue
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Collagen Synthesis
Collagen Synthesis
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Edema
Edema
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Infection
Infection
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Necrosis
Necrosis
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Systemic Factors
Systemic Factors
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Age's Effect
Age's Effect
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Circulation and Oxygenation
Circulation and Oxygenation
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Nutritional Status
Nutritional Status
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Wound Condition
Wound Condition
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Wound drainage
Wound drainage
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Exudate types
Exudate types
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Signs of infection
Signs of infection
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Pain assessment in wounds
Pain assessment in wounds
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Wound care education
Wound care education
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Wound Healing Phases
Wound Healing Phases
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Phase 1: Hemostasis
Phase 1: Hemostasis
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Phase 2: Inflammatory
Phase 2: Inflammatory
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Phase 3: Proliferative
Phase 3: Proliferative
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Phase 4: Maturation
Phase 4: Maturation
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Collagen in Wound Healing
Collagen in Wound Healing
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Factors Affecting Healing
Factors Affecting Healing
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Desiccation
Desiccation
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Study Notes
Wound Management
- Wound is defined as a break or disruption in the normal integrity of skin and tissues.
Learning Objectives
- Define different types of wounds
- Describe the physiology of wound healing
- Identify factors affecting wound healing
- Outline wound complications
- Describe wound management
- Educate patients on wound healing promotion
Types of Wounds
- Incision: Cutting or sharp instrument; wound edges are close and aligned.
- Contusion: Blunt instrument; overlying skin intact, injury to underlying soft tissue; possible bruising or hematoma.
- Abrasion: Friction; rubbing or scraping epidermal layers of skin; top skin layer is abraded.
- Laceration: Tearing of skin and tissue with blunt or irregular instrument; tissues not aligned; often with loose flaps.
- Puncture: Blunt or sharp instrument puncturing skin; intentional (venipuncture) or accidental. Foreign object entering skin/mucous membrane.
- Penetrating: Foreign object enters skin/mucous membrane and lodges in underlying tissue; fragments can scatter. Destroys skin layers.
- Burns (thermal, chemical, irradiation): Destroys skin layers.
- Pressure ulcers: Compromised circulation secondary to pressure.
Wound Classification
- Clean: Non-traumatic site; uninfected; no inflammation; no break in aseptic technique.
- Clean-contaminated: Entry into respiratory, alimentary, genitourinary tracts or oropharynx without unusual contamination (appendectomy). Minor disruption of aseptic technique.
- Contaminated: Open, newly injured traumatic wounds; gross spillage from gastrointestinal tract; major break in aseptic technique; enters genitourinary or biliary tract with infected urine or bile.
- Dirty: Traumatic wounds with delayed repair, devitalized tissue, foreign body, or fecal contamination; acute inflammation with purulent drainage during procedure.
Wound Healing Physiology
- Wound healing is a tissue response to injury.
- Injured tissues are repaired by physiologic mechanisms that regenerate functional cells and replace connective tissue with scar tissue.
- The process involves phases.
Phases of Wound Healing
- Phase 1 (Hemostasis): Occurs immediately after injury. Involved blood vessels constrict; blood clotting begins via platelet activation and clustering. Blood vessels dilate briefly after initial constriction. Capillary permeability increases, allowing plasma and blood components to leak out (exudate), causing swelling and pain. Increased blood flow causes heat and redness. A clot forms, protecting the injury. Platelets release substances to stimulate other cells to migrate to the injury.
- Phase 2 (Inflammatory): Follows hemostasis; lasts 4-6 days. White blood cells (leukocytes) move to the wound; leukocytes arrive to ingest bacteria and cellular debris. Macrophages arrive 24 hours later to ingest debris and release growth factors, which promote new blood vessels and epithelial cells. Acute inflammation characterized by pain, heat, redness, and swelling. Patients often have a mildly elevated temperature, leukocytosis (increased white blood cells), and general malaise.
- Phase 3 (Proliferation): Known as the fibroblastic, regenerative, or connective tissue phase; lasts several weeks. New tissue (granulation tissue) fills the wound space primarily through the actions of fibroblasts. Capillaries grow across the wound to provide oxygen and nutrients. Fibroblasts form fibrin that stretches through the clot. A thin layer of epithelial cells forms across the wound, and blood flow across the wound is restored. Granulation tissue forms the foundation for scar tissue development; highly vascular, red, and bleeds easily. Collagen synthesis and accumulation peak in 5-7 days.
- Phase 4 (Maturation): The final stage; begins about 3 weeks after injury and may continue for months or years. Collagen that was haphazardly deposited remodels; the healed wound becomes stronger. New collagen deposition compresses blood vessels in the healing wound, so that scar tissue forms (avascular, does not sweat, grow hair, or tan). Scar tissue is strong but less elastic than uninjured tissue. If a scar is over a joint, it may limit movement.
Factors Affecting Wound Healing
- Local factors:
- Pressure: Disrupts blood supply, interferes with blood flow, delays healing.
- Desiccation (drying): Cells dehydrate and die; crusting occurs; healing delayed.
- Maceration (overhydration): Moisture causes pH change, bacterial overgrowth, skin infection or erosion.
- Systemic factors:
- Age: Children heal faster; older adults may have more chronic illnesses, impede healing.
- Circulation/oxygenation: Blood flow and oxygen delivery crucial for nourishment and toxin removal; may be impacted by obesity.
- Nutritional status: Requires adequate proteins, carbohydrates, fats, vitamins, and minerals to rebuild cells, promote tissue repair. Healing slowed with poor nutritional status or fluid imbalances.
Wound Complications
- Infection: Bacteria invading the wound at any time.
- Hemorrhage: From a slipped suture, dislodged clot, stress at suture line, operative site, infection, or erosion of a blood vessel by a foreign body.
- Dehiscence: Partial or total disruption of wound layers.
- Evisceration: Protrusion of viscera through the incision.
- Fistula formation: Abnormal passageway from an internal organ to the skin or another internal organ.
Nursing Management
- Assessment: Appearance, approximation of wound edges, colour, drains/tubes/staples/sutures, signs of dehiscence or evisceration. Healthy wounds appear clean, approximated, with a crust along edges. Initially edges may be reddened, swollen but normal within a week. If infection is present, wound will be swollen, deep red, hot, with increased purulent drainage, foul odour. Dehiscence or separation of edges is imminent.
- Drainage: Inflammatory response leads to exudate formation. Exudate contains fluid and cells escaping blood vessels and deposited on tissue. Exudates are serous, sanguineous, or purulent (if infected). Drains may be inserted to promote drainage and healing. Evaluate amount, colour, odour, and consistency.
- Pain: Pain from the wound may be constant, especially with increase/purulent drainage (indicates delayed healing or infection). Incisional pain is usually most severe for the first 2-3 days then progressively diminishes.
Patient Education
- Keep wound dry and clean if soiled, notify caregiver.
- Report signs of infection (redness, swelling, increased warmth, pus, foul odor).
- Elevate affected body part.
- If pain or soreness apply a cold pack or analgesics.
- Eat plenty of protein and Vitamin C rich foods.
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Description
Explore the essential aspects of wound management in this quiz. Learn to define various types of wounds, understand the physiology of wound healing, and identify factors that affect healing processes. Equip yourself with the knowledge to outline complications and promote effective patient education on wound care.