Skin Integrity

Skin Importance
- Largest organ of the body, comprising 15% of body weight.
- Functions as a barrier against diseases, a sensory organ (pain, temperature, touch), and aids in vitamin D synthesis.
- Vitamin D is crucial for calcium absorption, helping to keep calcium in the bones.

Layers of the Skin
- Epidermis: Top layer of the skin.
- Dermis: Underneath the epidermis, providing structural support.
- Importance of knowing these layers for understanding pressure injuries/ulcers.

Terminology: Pressure injuries may also be called pressure ulcers, decubitus ulcers, or bedsores.
- Current terminology prefers "pressure injury."
Definition: Impairment of skin integrity due to unrelieved or prolonged pressure.
- Common in groups like patients with spinal cord injuries, diabetes, and in older adults.

Key Element: Pressure.
- Disrupts blood flow and cellular metabolism in the skin, leading to impairment in healing.
- Focus on pressure intensity (how long the pressure is applied) and how the tissue tolerates it.
Nutritional Status: A healthy diet improves skin integrity.
- Importance of hydration, e.g., drinking water to improve skin health.
- Avoiding inflammatory foods which can affect skin recovery.

Categories of Risk Factors:
- Impaired Sensory Perception: Patients with reduced ability to feel pressure may not detect prolonged pressure on specific body areas, leading to injury.
- Impaired Mobility: Difficulty moving can contribute to pressure injury risk due to constant pressure on certain areas.
- Alterations in Level of Consciousness: Patients with impaired cognition may not realize the need to relieve pressure.
- Friction and Shear: Movement against surfaces can exacerbate skin damage; use of draw sheets is recommended to prevent this.
- Moisture: Maintaining clean and dry skin is essential.

Stages:
1. Stage 1: Intact skin with non-blanchable redness over a bony prominence.
2. Stage 2: Partial thickness loss of skin; open ulcer presenting as a shiny or dry shallow sore without slough.
3. Stage 3: Full thickness skin loss; subcutaneous fat may be visible, slough may be present; muscle, bone, and tendon not exposed.
4. Stage 4: Full thickness skin loss involving exposed bone, muscle, or tendon; slough or eschar may be present, often includes tunneling.
- Unstageable: Full thickness tissue loss, but covered by slough or eschar, preventing accurate staging.
- Deep Tissue Pressure Injury: Persistent non-blanchable deep red or maroon discoloration, skin intact or non-intact.

Assessment Components:
- Location of the wound: Over bony prominences (e.g., sacrum, elbows).
- Depth and type of tissue involved: Determining staging based on visible tissue (adipose vs muscle).
- Dimensions of the wound: Measurement of length, width, and depth.
- Presence of tunneling or undermining.
- Assessment of exudate and surrounding skin health.

Key Terms:
- Eschar: Thick, black, or brown necrotic tissue.
- Slough: Yellow or white tissue that is soft and nonviable.
- Granulation Tissue: Healthy, red, moist tissue indicating healing.
- Epithelialization: Formation of new skin.
- Debridement: Removal of dead or infected tissue to promote healing.

Types of Healing:
- Primary Intention: Wounds are closed with minimal tissue loss; low infection risk and quicker healing.
- Secondary Intention: Wounds left open for granulation to fill in; longer healing time, higher risk for infection.
Phases of Healing:
- Inflammatory Phase: Initial response to injury; hemostasis and inflammation.
- Proliferative Phase: Tissue formation and granulation.
- Maturation Phase: Remodeling and strengthening of tissues.

Hemorrhage: Normal during and immediately after trauma; differentiate between internal (invisible) and external (visible) bleeding.
Infection: Localized symptoms (redness, warmth, increased drainage) and systemic symptoms (fever, chills, lethargy).
Dehiscence: Partial or total separation of wound layers; increased risk for infection.
Evisceration: Surgical emergency where organs protrude through the wound; requires immediate medical intervention.

Braden Scale: Tool to assess risk for pressure injury development based on sensory perception, moisture, activity, mobility, nutrition, and friction/shear.
- Scores range from 6 to 23, with lower scores indicating higher risk (≤9 is high risk).
Intervention Strategies:
- Regular repositioning (every 2 hours).
- Appropriate skincare routines to maintain moisture balance.
- Use of pressure-relief devices.
- Nutritional support to enhance healing processes.

Assessment: Regular evaluations, medical device assessments, and monitoring for signs of infection or deterioration.
Diagnosis: Identify potential patient problems related to skin integrity.
Planning: Set goals for wound healing, monitor progress, and adjust care plans accordingly.
Implementation: Educate patients on wound care, perform dressing changes, and support rehabilitation methods.
Evaluation: Check if goals are met using specific and measurable parameters. Modify plans as necessary for optimal patient outcomes.

Measurement Process: Measure length, width, and depth using disposable tape and cotton-tipped applicators.
- Document to track healing progression.

These notes are designed to provide comprehensive understanding and should be used as a detailed guide in relation to the information presented.