Integumentary System: Skin Layers and Aging

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Questions and Answers

What pathophysiological mechanism most directly accounts for the increased susceptibility to skin tears in elderly individuals?

  • Proliferation of dermal elastin fibers leading to increased skin rigidity.
  • Hypertrophy of subcutaneous adipose tissue, exerting excessive pressure on the overlying dermis.
  • Blunting of the rete ridges alongside decreased collagen and elastin, resulting in diminished epidermal-dermal adherence. (correct)
  • Increased production of sebum causing a hyper lubrication of the epidermal surface.

Which assessment most effectively differentiates between arterial and venous ulcers based solely on observable wound characteristics?

  • Arterial ulcers exhibit significant exudate, whereas venous ulcers present with a dry, necrotic base.
  • Arterial ulcers demonstrate surrounding hemosiderin staining, whereas venous ulcers are characterized by significant callus formation.
  • Arterial ulcers frequently occur distally and over bony prominences with a dry necrotic base, whereas venous ulcers are located over the medial malleolus featuring fibrinous material with moderate to heavy exudate. (correct)
  • Arterial ulcers are typically shallow with irregular borders, while venous ulcers exhibit a deep, punched-out appearance.

A patient has a superficial burn. Which statement made by the patient warrants immediate escalation to a burn specialist?

  • "The pain is controlled with ibuprofen."
  • "The burn is really painful."
  • "The affected area blanches with pressure."
  • "The skin is broken and there are blisters." (correct)

In the context of integumentary aging, what is the most direct mechanism through which decreased sensory structures contribute to an increased risk of injury?

<p>Impaired fine motor ability, coupled with a slight delay in detecting harmful stimuli such as heat or cold leads to delayed protective responses. (B)</p> Signup and view all the answers

How does decreased upward migration of epithelial cells and reduced desquamation most directly impede wound healing in the geriatric population?

<p>By impairing the sequential replacement of damaged tissue, thus delaying the restoration of a functional epidermal barrier. (B)</p> Signup and view all the answers

Consider a scenario involving a patient presenting with a burn injury where the wound bed manifests as waxy white to leathery gray with a charred appearance. Given this presentation, what is the most critical immediate concern regarding potential complications?

<p>The increased risk of systemic infection stemming from compromised skin integrity and insensitivity, requiring prompt surgical intervention. (A)</p> Signup and view all the answers

In the context of wound evaluation, what is the most discriminating characteristic that distinguishes a neuropathic ulcer from a venous stasis ulcer?

<p>The presence or absence of diminished protective sensation. (B)</p> Signup and view all the answers

If a patient has an Ankle-Brachial Index (ABI) greater than 1.3, which condition is most likely?

<p>The patient has calcified arteries and may have arterial disease. (D)</p> Signup and view all the answers

In the application of the Braden Scale for pressure ulcer risk assessment, what specific element reflects the patient's capacity to independently change and control body position?

<p>Mobility. (B)</p> Signup and view all the answers

A physical therapist is treating a patient with peripheral artery disease (PAD). What clinical sign is most indicative of critical limb ischemia?

<p>Rest pain in the foot that is exacerbated by elevation. (D)</p> Signup and view all the answers

What feature of the epidermis is an avascular?

<p>The epidermis lacks blood vessels. (B)</p> Signup and view all the answers

Which function is primarily regulated by the skin's integumentary system?

<p>Homeostasis, immune response, and synthesis of vitamin D. (C)</p> Signup and view all the answers

Which of the following best describes the role of Langerhans cells within the epidermis?

<p>Immune activation. (A)</p> Signup and view all the answers

What is the primary distinction between a superficial partial thickness and deep partial thickness burn?

<p>Superficial partial thickness burns impact the epidermis and the upper portion of the dermis, whereas deep partial thickness burns affect the epidermis and a larger portion of the deeper dermis. (C)</p> Signup and view all the answers

Which statement best captures the current understanding of frailty?

<p>Frailty is a multisystem physiologic decline with increased vulnerability to stressors, and can occur in younger individuals. (B)</p> Signup and view all the answers

What is the most appropriate positioning strategy that mitigates the risk of contracture following a full thickness burn to the anterior neck?

<p>Positioning the neck in extension with slight splinting to prevent anterior shortening of the healing tissues. (D)</p> Signup and view all the answers

A patient in the ICU has several risk factors for frailty. Considering falls as a consequence of frailty, what multifactorial intervention strategy will most likely prevent falls?

<p>Implementing a comprehensive assessment including medication review, environmental modifications, and individualized exercise programs with a focus on balance and gait training. (C)</p> Signup and view all the answers

In the context of progressive mobility in the ICU, what indicates a patient is ready to advance from Goal Level 1 of Clinical Stability to Goal Level 2 of Sitting Upright?

<p>The patient demonstrates the ability to move their arm against gravity with stable vital signs. (B)</p> Signup and view all the answers

A patient with a known history of venous insufficiency presents with a lower extremity wound. What objective finding would provide the strongest evidence that the wound is primarily of venous etiology rather than arterial?

<p>The periwound area exhibits significant edema, hemosiderin staining, and the wound is shallow with irregular borders. (C)</p> Signup and view all the answers

In a geriatric patient with decreased mobility secondary to a recent hip fracture, what is the most critical early intervention to mitigate integumentary complications?

<p>Implementation of a structured repositioning schedule with appropriate support surfaces to minimize pressure. (B)</p> Signup and view all the answers

What factor is most directly responsible for the increased time of inflammation in older adults?

<p>Rate of re-epithelization decreases as we age. (C)</p> Signup and view all the answers

Following a recent diagnosis of peripheral neuropathy, a patient exhibits decreased sensation in their lower extremities. What proactive strategy is critical to prevent the formation of neuropathic ulcers?

<p>Implementing a daily foot inspection regimen and educating the patient on proper footwear selection to minimize areas of pressure. (A)</p> Signup and view all the answers

What best describes the role of collagen in the dermis?

<p>Providing skin durability and flexibility. (D)</p> Signup and view all the answers

Given a patient scenario where an individual has a low serum albumin level, which concern would become the top priority?

<p>Increased risk of decreased healing and other complications. (D)</p> Signup and view all the answers

What are the categories that make up the FRAIL scale?

<p>Fatigue, Resistance, Aerobic, Illnesses, and Loss of weight. (D)</p> Signup and view all the answers

In the context of managing a Stage 3 pressure ulcer, what is the most critical initial step?

<p>Debridement of necrotic tissue, utilizing appropriate methods, and selection of a wound dressing based on wound bed characteristics. (D)</p> Signup and view all the answers

Following a thermal injury, what is the most appropriate action to minimize edema formation and maximize limb perfusion?

<p>Early mobilization exercises to promote venous return, while addressing position and shear. (C)</p> Signup and view all the answers

A patient cannot walk up 1 flight of stairs without assistance. This is an example of what aspect within the FRAIL scale?

<p>Resistance. (D)</p> Signup and view all the answers

Which of the following statements best explains why skin tears are commonly seen in the geriatric population?

<p>Decreased elasticity of skin, thinning of the epidermis and dermis. (B)</p> Signup and view all the answers

A patient presents with a category one skin tear. According to the International Skin Tear Advisory Panel (ISTAP), how should the skin tear be categorized?

<p>Skin flap that can fully cover the wound. (C)</p> Signup and view all the answers

A patient is diagnosed with diminished blood flow in the arteries. Which condition is suspected?

<p>Arterial Compromise. (A)</p> Signup and view all the answers

An elderly patient is hospitalized and is immobile. How can the healthcare staff protect the patient's integumentary system and promote mobility?

<p>Frequent position changes with safe patient handling aids. (B)</p> Signup and view all the answers

A nurse is caring for a patient with an arterial leg ulcer. What is the best action for the nurse to implement?

<p>Keep the legs horizontal or slightly dependent to enhance arterial perfusion. (B)</p> Signup and view all the answers

A physical therapist is evaluating a patient who reports having a burning sensation in their lower extremity. Which vascular issue has been diagnosed?

<p>Neuropathic. (B)</p> Signup and view all the answers

The nurse is assessing a patient who has a reddened area on their coccyx. What is the best action for the nurse to implement?

<p>Relieve pressure on the coccyx. (C)</p> Signup and view all the answers

What feature is associated with Venous Ulcers?

<p>Varicose Veins. (B)</p> Signup and view all the answers

What is the primary method of support to a patient who is currently at a BMAT Level 3?

<p>Walker. (D)</p> Signup and view all the answers

In a patient presenting with a full thickness burn injury, what is the most immediate and critical step in preventing further complications related to impaired thermoregulation intrinsic to the integumentary system?

<p>Implementing strict environmental control measures to minimize convective and radiative heat loss. (A)</p> Signup and view all the answers

An elderly patient with a history of peripheral arterial disease (PAD) develops a neuropathic ulcer on the plantar surface of their foot. What is the most critical intervention to prevent further deterioration and promote healing, considering the interplay between vascular insufficiency and neuropathy?

<p>Implementing a comprehensive offloading strategy combined with vascular augmentation if indicated by non-invasive vascular studies. (D)</p> Signup and view all the answers

In the context of integumentary changes associated with aging, which of the following interventions most directly mitigates the impact of decreased sensory structures on the risk of injury?

<p>Providing education on environmental hazard awareness and strategies for sensory compensation. (C)</p> Signup and view all the answers

For an 80-year-old patient with a history of chronic venous insufficiency and a BMI of 35, which of the following interventions would most effectively address both the underlying pathophysiology and prevent recurrence of venous leg ulcers?

<p>Implementing a multi-component approach including compression therapy, regular exercise, and weight management. (A)</p> Signup and view all the answers

Upon initial assessment of a geriatric patient with a suspected Stage 3 pressure ulcer, what is the most critical discriminatory step in determining the appropriate wound management strategy?

<p>Determining the presence of undermining or sinus tracts to guide debridement and packing. (B)</p> Signup and view all the answers

In a patient with a documented history of both arterial and venous insufficiency, what is the most challenging aspect of differential diagnosis when assessing a lower extremity ulcer?

<p>The potential for atypical presentations that obscure characteristic clinical signs. (C)</p> Signup and view all the answers

Considering the multifactorial nature of pressure ulcer development, which of the following strategies would be most effective in minimizing the risk of hospital-acquired pressure ulcers (HAPUs) in a high-risk ICU patient with multiple comorbidities?

<p>Adopting a comprehensive, individualized care plan addressing all Braden Scale risk factors. (B)</p> Signup and view all the answers

In the clinical management of a Type 2 skin tear according to the ISTAP classification, what is the most critical determinant of long-term functional outcomes?

<p>The meticulous approximation of the skin flap to promote primary or secondary intention healing, while preventing infection and further trauma. (D)</p> Signup and view all the answers

What underlying pathophysiological mechanism contributes most significantly to the increased susceptibility of the skin to trauma and subsequent skin tears in the frail elderly population?

<p>Atrophy of rete ridges reducing dermoepidermal cohesion in conjunction with decreased collagen and elastin. (C)</p> Signup and view all the answers

What is the most significant implication of the finding that half of all patients identified as frail in the ICU are under the age of 65?

<p>It challenges the traditional understanding of frailty as solely a geriatric phenomenon. (D)</p> Signup and view all the answers

What clinical rationale most effectively justifies the integration of Safe Patient Handling (SPH) equipment into routine care for geriatric inpatients, particularly considering their elevated risk of integumentary injury?

<p>SPH equipment eliminates the need for manual lifting, thereby reducing shear forces and friction. (A)</p> Signup and view all the answers

In the advancement of progressive mobility for an ICU patient, what critical physiological indicator would contraindicate progression from Goal Level 3 (Increased strength & stands with minimal to moderate assistance) to Goal Level 4 (Strength distance walk)?

<p>A sustained increase in heart rate exceeding 20% of baseline upon standing. (A)</p> Signup and view all the answers

What is the most compelling rationale for utilizing a draw sheet with a Posey bed sensor mat positioned directly beneath it, as part of an integrated pressure ulcer prevention strategy?

<p>To create a smooth, frictionless surface that reduces shear forces during repositioning. (A)</p> Signup and view all the answers

What is the most critical consideration when selecting a support surface for a patient at very high risk of developing pressure ulcers (Braden Scale score of 9 or less)?

<p>The capacity to redistribute pressure effectively and minimize shear forces based on the patient's specific needs. (C)</p> Signup and view all the answers

What is the key distinction between venous and arterial insufficiency wounds related to capillary refill time?

<p>Arterial ulcers typically present with delayed capillary refill due to reduced arterial blood flow. (D)</p> Signup and view all the answers

Considering the components of the FRAIL scale, what element requires the most subjective interpretation and is most likely to be influenced by a patient's psychological state?

<p>Fatigue (self-reported exhaustion). (B)</p> Signup and view all the answers

What best describes the relationship between mobility and activity level as components of the Braden Scale?

<p>Mobility refers to the patient's ability to change and control body position, whereas activity level reflects the degree of physical exertion. (C)</p> Signup and view all the answers

What is the most significant implication of reduced upward migration of epithelial cells and reduced desquamation of the skin in older adults?

<p>Delayed wound healing due to impaired epidermal resurfacing. (A)</p> Signup and view all the answers

In a patient with a superficial partial thickness burn, what is the most concerning indication for referral to a burn specialist?

<p>The burn is circumferential and located on an extremity. (C)</p> Signup and view all the answers

Considering the physiological effects of prolonged bedrest presented, which of the following interventions would be the most effective at directly counteracting the increased risk of venous stasis and subsequent thrombus formation?

<p>Initiating a program of passive range of motion exercises combined with sequential compression devices. (C)</p> Signup and view all the answers

What is the most critical consideration when assessing the skin integrity of a patient with known peripheral neuropathy during a routine physical therapy session?

<p>The inspection for areas of excessive pressure, redness, or breakdown, especially on weight bearing surfaces. (D)</p> Signup and view all the answers

A patient presents with dry skin. Which statement best describes the changes in the sebaceous glands to the skin?

<p>Reduced sebum production (B)</p> Signup and view all the answers

Based on the photos available, what is a risk associated with the integumentary system?

<p>Decreased elasticity (A)</p> Signup and view all the answers

A patient is at a BMAT level 3. What is your support method?

<p>Gait Belt, Walker, Cane, Sit to stand Device, Walker Harness Lift, Crutches (C)</p> Signup and view all the answers

A 70 year old patient is being treated by a physical therapist in their home. During the latest home visit, the therapist notices a category one skin tear. What can the physical therapist do to treat the patient?

<p>Approximate the skin flap (C)</p> Signup and view all the answers

In a patient who has been immobile for 3 weeks, what can the staff do to avoid skin issues?

<p>Use the Braden Scale (C)</p> Signup and view all the answers

A patient is diagnosed with arteriosclerosis by their physician. When evaluating them, what will the physical therapist notice?

<p>Deep wound with clearly defined borders (B)</p> Signup and view all the answers

A patient has been diagnosed with frailty. What clinical test is most likely needed to assess them?

<p>Decreased gait speed, decreased strength (D)</p> Signup and view all the answers

A patient is unable to lift their arm above their head. Because you are trying to prevent contractures, how should you position them in bed?

<p>Abduction, External Rotation (D)</p> Signup and view all the answers

A physical therapist is evaluating a 78 year old patient. They report that they have been experiencing a burning sensation in their lower extremities. Which vascular issue has most likely been diagnosed to the referring physician?

<p>Arterial Insufficiency (C)</p> Signup and view all the answers

Based on the anatomy of the integumentary system, which primary skin layer is responsible for skin durability and flexibility?

<p>Dermis (B)</p> Signup and view all the answers

Which function does the integumentary system not perform?

<p>Provides internal organ protection (A)</p> Signup and view all the answers

Based on normal responses, what Ankle-Brachial Index (ABI) is normal?

<blockquote> <p>0.9 &lt; 1.3 (A)</p> </blockquote> Signup and view all the answers

Which item is not a component of the Braden Scale for assessing patient fall risk?

<p>Vascular status (C)</p> Signup and view all the answers

Based on the pictures available, which of the following items is used to perform checks on the integumentary system?

<p>Hovermatt (C)</p> Signup and view all the answers

What does total thickness loss of skin with exposed fascia, muscle, tendon, ligament, cartilage, or bone represent?

<p>Stage 4 pressure injury (A)</p> Signup and view all the answers

In a patient with skin missing (Type 2 skin tear), where on the skin should you treat?

<p>Flap loss such that repositioning does not cover wound bed (B)</p> Signup and view all the answers

In the management of an elderly patient at high risk for pressure ulcers (Braden Scale score ≤ 9) and with documented protein-energy malnutrition, which intervention strategy most effectively addresses both local tissue vulnerability and systemic factors impeding wound healing?

<p>Utilizing a low air loss mattress in conjunction with a high-protein, high-calorie enteral nutrition regimen, while maintaining a 30-degree side-lying position. (B)</p> Signup and view all the answers

In a geriatric patient with a history of both peripheral arterial disease (PAD) and chronic venous insufficiency (CVI), what complex physiological interaction most significantly confounds the assessment and management of lower extremity ulcers?

<p>The paradoxical influence of PAD-induced ischemia compromising the effectiveness of compression therapy, which is typically indicated for CVI-related ulcers. (D)</p> Signup and view all the answers

An 85-year-old patient with a stage 3 pressure ulcer on the right trochanter is being managed with alginate dressings and a pressure-redistributing mattress. Despite these interventions, the wound exhibits minimal signs of healing after 4 weeks. What is the most critical next step in re-evaluating and optimizing the wound care plan?

<p>Conduct a comprehensive nutritional assessment, including pre-albumin and transferrin levels, and optimize protein and micronutrient intake based on the findings. (C)</p> Signup and view all the answers

In the context of implementing Safe Patient Handling (SPH) programs in a geriatric rehabilitation unit, what organizational change is most likely to lead to sustained adoption and effectiveness of SPH practices in preventing integumentary injuries?

<p>Establishment of a multidisciplinary SPH committee, comprising frontline staff, administrators, and risk management personnel, to drive policy development and implementation. (B)</p> Signup and view all the answers

Considering the interrelationship between sarcopenia and integumentary integrity in the geriatric population, which intervention strategy would most effectively address both the underlying muscle wasting and subsequent risk of pressure ulcer development?

<p>Initiating a progressive resistance training program, coupled with high-protein nutritional supplementation and pressure offloading strategies using specialized support surfaces. (B)</p> Signup and view all the answers

Flashcards

Integumentary System

The body's outer covering that maintains homeostasis, provides immune barrier and synthesizes vitamin D

Epidermis

Outer layer of skin that provides protection from infection and drying.

Dermis

Skin layer responsible for skin durability, flexibility, body temperature regulation, and supports the epidermis.

Hypodermis

The deepest layer of the skin, consists of subcutaneous tissue.

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Keratinocytes

Cells that generate the physical epidermal barrier.

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Langerhans cells

Epidermal cells involved in immune activation.

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Melanocytes

Epidermal cells that Contribute to skin color and sun protection.

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Fibroblasts

Dermal cells that synthesize collagen and elastin for tissue repair.

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Reduced blood flow to the skin

Causes decreased thermoregulation, reduced dermal thickness and overall slower healing.

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Increased fragility of capillaries

This increases the risk of ecchymosis and appearance of senile purpura.

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Reduced collagen and elastin

Leads to reduced dermal thickness, skin elasticity, wrinkles of the skin.

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Reduced subcutaneous fat and redistribution of fat

This causes decreased thermoregulation and sagging skin

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Trauma

A wound caused by forces exceeding tissue tolerance.

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Superficial partial thickness burn

Burn that damages the epidermis and upper dermis.

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Deep partial thickness burn

A burn that damages the Epidermis and large upper portion of dermis.

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Full thickness burn

A burn that destroys all skin layers

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4th degree burn

A burn that shows complete destruction of the epidermis and subcutaneous tissue with muscle damage.

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Skin tear

A traumatic wound caused by mechanical forces.

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Arterial Compromise

Blood flow problems in artieries that cause Ischemia and potentially leads to stroke, embolism

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Arterial Insufficiency

Associated with conditions such as Peripheral Arterial Disease (PAD), skin shiny, cool, hairless, wounds in extremities

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Arterial Insufficiency Wound

Location: distal portions of the lower extremity (e.g., tips of toes, foot, malleoli) Little drainage, Necrotic tissue, may be present, Altered capillary refill, PAINFUL

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Venous Compromise

Blood flow problems in veins, seen in lower extremities.

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Venous Insufficiency

Associated diagnosis - Lower extremity edema,chronic venous insufficiency, varicose veins

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Venous Insufficiency Wound

Distal portions of the lower extremity (e.g., ankle and calf); Shallow irregular borders -Drainage present -Normal capillary refill

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Neuropathic Wounds

Occur in pressure areas of foot- metatarsal heads, heels, toes; plantar surface of foot, and loss of protective sensation

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Pressure Ulcers

Area touching the patient could cause skin breakdown, hospital Acquired condition -Braden scale

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Braden Scale

Scale of risk to asses pressure wounds. Categories: Mobility Activity level, Sensory perception, Nutritional status, Exposure to moisture and, Friction and shear

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Unstageable Pressure Ulcer

Skin is intact but discoloration presents

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Rating Braden Scale

Scale that measures a patients total of 23 points, Higher score means lower risk of developing ulcer

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Pressure Ulcer Staging

National scale to define and classify pressure ulcers.

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What is frailty?

Has multiple definitions, Patients with this condition have an altered biology that makes them more vulnerable

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Operational Definition (Fried 2001)

Physical Activity (270kcal/wk women, 383 kcal/men)Slow walkingWeak grip Lose of 10 lbs in the past year -Self-report of exhaustion.

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Clinical Pictures of Frailty

Indicators of people with frailty Have a history of falls Have poor nutrition Sedentary lifestyle and don't get outside Muscle weakness is very common

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Contractures

a shorting of muscles, tendons and tissues around a joint, which decrease movement in the area

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Physiological Effects of Bedrest

Leads to Thrombosis/embolism risk and nerve Conduction issues, Venous stasis, and Sensitivity to thermal stimuli

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Sarcopenia-Causes

Loss of skeletal muscle mass that can be attributed to old age.- Decrease in hormones such as testosterone, growth hormone

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Implications of M-S Changes

Strength training exercise, Wbing exercise, movement toward end range, Avoid “jarring” exercise Encourage the use of warm-up

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Chart review

Patient history, Comorbidities, Obesity, previous wounds, DM, vascular insufficiency.

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Ankle Brachial Index

Ratio of systolic blood pressure at the ankle to the brachial systolic pressure-Ankle SBP is taken using the posterior tibial artery or dorsalis pedis

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Ankle Brachial Index numbers

Gold standard for diagnosing presence or severity of PAD ABI sensitivity is 95% and specificity is 99%

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Evaluation/Screening

Wound History-Pain-Social situation-System Review-Cognition, Neuro exam-Balance, Sensation -Musculoskeletal, ROM, & MMT -Skin integrity

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FRAIL Screen

Assess- Fatigue Resistance- Aerobic and 4 Illnesses

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Mobility Consideration

Mobility Considerations, Prevention of shear, 30 degree angle of bed, Repositioning patient, Protection of integumentary system but promotion of mobility

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Progressive Mobility

Implemented through stability, sitting, increasing strenth and strength with distance

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Pressure Ulcer Screening

Skin-Surface-Keep moving-Incontinence-Nutrition

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ROHO HAND CHECK

Proper safety checks, assist with pressure injury prevention

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Pressure Ulcer Prvention

Positioning, Mobility considerations

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Pressure Ulcer Management

offloading surfaces, Turning program, Document size and details- Clean wound Select appropriate dressings, Nutrition

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Study Notes

Integumentary System Review

  • The integumentary system maintains homeostasis
  • This includes fluid balance and thermoregulation
  • It provides an immune barrier and synthesizes vitamin D

Epidermis - Skin

  • Protects skin from infection and drying
  • Maintains fluid balance, preventing water loss
  • Provides feedback for pain, touch, pressure, and sensation
  • It is avascular and has specialized cells

Dermis - Skin

  • Responsible for skin durability and flexibility.
  • Prevents excessive body heat loss and regulates body temperature
  • Responsible for outer epidermis
  • If the dermis is completely destroyed a wound can’t heal
  • It is a vascular and innervated layer of skin
  • The dermis contains hair follicles, sweat glands, blood vessels, and nerves held in place by collagen

Hypodermis - Skin

  • The deepest layer of the skin
  • Consists of subcutaneous tissue

Aging Skin

  • Aging skin has decreased blood flow
  • Decreased sensory structure affects aging skin
  • There is decreased elasticity and thermoregulation
  • Aging skin has increased fragility of capillaries

Anatomical & Physiological Changes of Aging Skin

  • Overall reduced blood flow leads to slower healing, decreased thermoregulation, and reduced dermal thickness
  • Increased fragility of capillaries raises the risk of ecchymosis and senile purpura appearance
  • Reduced collagen and elastin reduces dermal thickness, skin elasticity, flattening of epidermal/dermal projections, wrinkles, and sagging skin
  • Reduced subcutaneous fat and redistribution of fat lowers thermoregulation, and causes wrinkles and sagging skin
  • Flattening of epidermal/dermal projections decreases adherence between epidermis and dermis
  • Decreased activity and number of sebaceous glands causes xerosis
  • Itch-scratch cycle leads to skin breakdown/infection/scarring, reduced skin barrier function, increased skin irritation and dermatosis, with a higher pH of the skin
  • Decreased sensory structures reduce fine motor ability, increase risk of injury, and slightly delay detecting harmful stimuli
  • Decreased number of hair follicles slows partial thickness re-epithelialization
  • Black/brown hyperpigmented spots are typically benign and located on sun-exposed skin
  • Reduced production of melanin decreases protection from the sun (UV radiation)
  • This increases DNA damage
  • Reduced number and action of sweat glands decreases thermoregulation
  • Depleted hair follicle melanocytes cause the appearance of grey hair
  • Ridged and thickened fingernails result in brittle, weak, hypertrophic nails
  • Decreased upward migration of epithelial cells & reduced desquamation slows wound healing

Trauma and Unplanned Injury

  • Wounds occur when forces exceed the tissue's tolerance
  • Unplanned injuries include thermal injury (burn/frostbite)
  • Also, animal bites, MVAs, falls, and skin tears are unplanned injuries

Burn Injury and Depth

  • Superficial partial thickness burns involve the epidermis and upper dermis
  • Deep partial thickness burns involve the epidermis and a large upper portion of the dermis
  • Full thickness burns destroy all skin
  • Fourth degree or subdermal burns involve destruction of the epidermis, dermis, subcutaneous tissue, and muscle damage

Burn Classification

  • Superficial burns appear red, are dry, blanch with pressure, and are painful
  • A superficial partial thickness burn appears moist with blisters, is red and weeping, blanches with pressure, and is painful to temperature and air
  • Deep partial thickness burns have blisters that easily unroof and are wet or waxy dry
  • Variable color can be patchy to cheesy white to red
  • Deep partial thickness does not blanch with pressure and is only sensitive to pressure
  • Blisters require surgical treatment and >21 days healing time
  • Full thickness burns are waxy white to leathery gray to charred and black
  • Full thickness burns are dry, inelastic, do not blanch, and are insensate
  • Deep pressure is a sensation only
  • Rare unless surgically treated
  • Deeper injury extends to fascia and muscle and is sensitive to deep pressure
  • A person will likely never be treated unless it is surgically treated

Skin Tears

  • Traumatic wounds from mechanical forces, including removal of adhesives, are skin tears
  • Skin tear severity and prevalence rates vary

International Skin Tear Advisory Panel (ISTP) Classifications

  • Type 1: No skin loss, the flap can cover the whole wound bed when repositioned.
  • Type 2: Partial flap loss, such that repositioning doesn't cover the wound bed
  • Type 3: Total flap loss, and the whole wound bed is exposed

Vascular Issues

  • Arterial compromise results in poor blood flow
  • Could lead to ischemia, stroke, or embolism
  • This can be seen anywhere in the body
  • Venous compromise shows blood flow problems in veins
  • This issue is usually seen in lower extremities

Arterial Insufficiency

  • An associated diagnosis is peripheral Arterial Disease (PAD)
  • Risk factors for arterial insufficiency are increased age, diabetes, hypertension, obesity, smoking, and high cholesterol
  • A shiny and cool or hairless presentation is likely
  • Wounds in the distal lower extremity can occur

Arterial Insufficiency Wound

  • Location in distal portions of the lower extremity, such as tips of toes, foot, or malleoli
  • Little drainage
  • Necrotic tissue
  • Potential absent pulses
  • Altered capillary refill
  • Painful

Venous Insufficiency

  • Associated diagnosis: Lower extremity edema, chronic venous insufficiency, varicose veins
  • Risk factors include high BMI, obesity, HTN, and DVT
  • Edema, drainage, wounds in distal lower extremity are typical presentations

Venous Insufficiency Wound

  • Location in the distal portions of the lower extremity, like ankle and calf
  • Shallow irregular borders
  • Drainage
  • Normal capillary refill.
  • Painless!
  • Expect hemosiderin staining

Neuropathic Conditions

  • Neuropathic wounds are common in patients with diabetes
  • Wounds present in pressure areas of foot: metatarsal heads, heels, toes; plantar surface of foot
  • Loss of protective sensation on monofilament (5.06)

Neuropathic Wounds

  • Decreased sebaceous gland release results in dry skin increasing callus formation and likelihood of fissures
  • A decreased sebaceous gland increases areas of pressure and likelihood of skin breakdown
  • Inability to perceive harmful levels of pressure or force increases likelihood of skin breakdown
  • Deformity such as claw toe or hammer toe increases area of pressure gradient and likelihood of skin breakdown
  • A change in foot posture will increase the gradient and likelihood of skin breakdown

Pressure Ulzers

  • Anything touching the patient could breakdown the skin
  • Pressure Ulcers are a Hospital Acquired condition
  • The Braden scale is a screening tool

Braden Scale Risk Categories

  • The Braden Scale has six categories of risk: Mobility, activity level, sensory perception, nutritional status, exposure to moisture, friction, and shear
  • Each category is rated on a scale of 1-4, except for friction and shear, rated on a scale of 1-3
  • There are a total of 23 points available
  • A higher score indicates a lower risk of developing an ulcer
  • Very High Risk: 9 or less, High Risk: 10-12, Moderate Risk 13-14, Mild Risk 15-18, No Risk 19-23

Pressure Ulcer Staging

  • It was developed by the National Pressure Injury Advisory Panel (NPIAP)
  • It is based on anatomic depth of soft tissue, complete visualization is a must
  • Wounds covered by eschar and slough are therefore unstageable

Older Adult Wound Healing

  • There is increased time of inflammation
  • Tensile strength of a wound is less than younger adults
  • Healed wounds will not exceed 70-80% of the strength of original tissue
  • Older adults with a newly healed wound have only 15% of original skin strength
  • Re-epithelization decreases as we age, and scar maturation takes longer

Frailty

  • Having multiple definitions, including physical frailty
  • Patients have an altered biology, making them vulnerable
  • If present, it is a prognostic indicator of poor outcomes
  • Frailty manifests as multisystem physiologic decline
  • It is a clinical syndrome of weight loss, fatigue, and weakness

Operational Definition of Frailty

  • A clinical syndrome with 3 or more: -Low physical activity (270kcal/wk women, 383 kcal/men) -Slow walking (<.65 m/sec for 15 feet is associated with increased falls) -Weak grip (<23 lb for women, <32 lb for men; lowest 20% adjusted for gender and age) -Loss of 10 lbs in the past year (unintentional) -Self-report of exhaustion (3 or more days/week)
  • Meeting 1-2 of the criteria is considered pre-frail

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