Week 3 Integument Flashcards
What are the primary purposes of skin?
- Protection
- Sensory proception
Pallor
Loss of color
Look at mucous membranes
Indication: anemia, shock, lack of blood flow
Cyanosis
Bluish discoloration
Nail beds, lips, mucosa
Indication: hypoxia, impaired venous return
Jaundice
Yellow discoloration
Sclera, skin, mucous membranes
Indication: Liver dysfunction
Erythema
Redness
Face, skin, pressure prone areas
Indication: inflammation, vasodilation, sun exposure, elevated body temp
Risk factors for impaired skin integrity
- Impaired sensory perception (pain meds, anesthesia)
- Impaired mobility
- Altered level of consciousness
- Shearing: sliding movement, skin is fixed, underlying tissues move
- Friction: Two surfaces moving across one another
- Moisture: stool, urine, sweat
Shear vs friction
Shear:
- Inner layers
- HOB elevated, pt falls down in bed, skin is fixed, underlying tissues move
Friction:
- Outer layer
- Two surfaces moving across one another
- Pulling pt up in bed w/ draw sheet
Patients at risk for impaired skin integrity
- Older adults who have experienced a trauma
- Spinal cord injuries
- Nutritional deficits
- LTC homes
- Acutely ill or in hospice
- DM
- ICU/critical care
- Incontinence
Three major factors involved in pressure injury development
- Pressure intensity
- Pressure duration
- Tissue tolerance (low BP, poor nutrition, aging, hydration status all affect tolerance)
Blanchable vs non-blanchable
Blanchable: skin turns red when pressure relieved
Non-Blanchable: redness does not occur
Unstageable pressure ulcers
Obscured by infection or dying skin (slough/Eschar)
Cannot determine involvement
Moisture Associated Skin Damage
- Incontinence related
- Intertriginous -> dermatitis
- Periwound -> wound or stoma’s, associated w/ exudate
Wounds: acute vs chronic
Acute
- Normal repair process
- Return to normal function and integrity
- Trauma/surgical incision
Chronic
- Fails to proceed through normal healing process
- Does not return to normal function and integrity
- Pressure ulcer, vascular insufficiency wound
Wounds and nutrition
- Protein, Vitamin A and C, zinc, copper -> critical for healing
- Adequate caloric intake
- Serum albumin & pre-albumin labs
Wounds and infection
- Infection prolongs inflammation and delays healing
- Look for: purulent drainage, changes in color/volume/redness around the tissue, fever or pain
- Low WBC can delay healing due to inability to fight