Burns

Cards (45)

  • Functions of the Skin
    • Protects against injury
    • Keeps germs out
    • Fluids and electrolyte balance
    • Excretory organ
    • Pain perception
    • Vitamin D absorption
    • Maintains body temp
  • Tissue destruction
    • Can have local and systemic effects
    • Sepsis, shock, death
    • Infection prevention is key
    • Closure of burn wound
  • Systems affected by burns
    • Endocrine
    • Cardiac
    • Respiratory
    • Hematologic
    • Immune
  • Layers of the skin
    • Epidermis -outer layer, it can grow back. No blood vessels and has to get resources from the second layer of skin.
    • Dermis -has collagen, connective tissue, elastic fibers, blood vessels, nerves, hair, lymph vessels, and glands.
    • Subcutaneous tissue - has a basement membrane separating it from dermis
  • Dermis
    • Skin regrowth can occur as long as parts of the dermis remains
    • No skin regrowth if the entire dermal layer is burned and the cells and dermal appendages are destroyed
  • Feet and hand have deeper dermal appendages which allows for healing of deep burns
  • Nerves
    • Epidermis burn is painful
    • Dermis is painful
    • If a full thickness burn occurs the nerves may be destroyed, and pain may only be at the wound edges
    • May feel only dull or pressure-like pain
  • Burn classification by depth
    • Superficial-thickness- only the epidermis (heals 3-6 days)
    • Partial-thickness-loss of epidermis and part of dermis
    • Superficial partial thickness- upper third of the dermis
    • Deep partial thickness- deeper in the dermis, very few healthy cells remain
    • Full-thickness- entire dermis and epidermis
    • Deep full-thickness-beyond the skin into muscles bones and tendons
  • Type of Burn
    • Superficial
    • Superficial partial thickness
    • Deep partial thickness
    • Full thickness
    • Deep full thickness
    • Electrical Burn (A=entrance; B=exit)
  • Burn classification by injury
    • Mild- treat and street
    • Moderate- may need to go to burn center
    • Major- need to go to a burn center
  • Rule of 9's Fig
  • Vascular changes from burns
    • Excessive weight gain w/i first 12 hours and continues 24-36 hours
    • Increased macrophages
    • Blood vessel thrombosis
    • Fluid shift
    • Fluid remobilization- starts about 24 hours after burn
    • Hypokalemia and hyponatremia
    • Anemia
    • Continue to lose protein at wound site
    • Metabolic acidosis
  • Cardiac changes from burns
    • Hypovolemia
    • Dysrhythmia
  • Pulmonary changes from burns
    • Airway edema
    • Pulmonary capillary leak
    • Chest burns that restrict movement of chest
    • Carbon monoxide poisoning
  • GI changes from burns
    • Decreased perfusion to GI tract
    • Sympathetic nervous system causes decreased motility and even greater decrease in blood flow
    • Curling's ulcer
  • Metabolic changes from burns
    • Greatly increased
    • Hypoglycemia
    • Increased body temp
  • Always our jobs to educate patients ways to prevent burns
  • Risk factors for death from burns
    • > 60 years old
    • > 40% TBSA
    • Presence of inhalation injury
  • Goals of management in the 1st Resuscitation/Emergent Phase of Burn Injury
    • Secure airway
    • Support circulation — fluid replacement
    • Prevent infection
    • Maintain body temp
    • Provide emotional support
  • General Management in Resuscitation phase
    • Airway patency
    • O2 as needed
    • Keep warm
    • NPO
    • Elevate extremities if no other obvious injuries
    • IV with fluid replacement
    • Tetanus toxoid
    • Head to toe
  • Respiratory Assessment

    • Fire source, temp, environment, toxic, enclosed space?
    • Was burn to face, lips, ears, neck, eyes
    • Inspect nose, mouth, pharnyx
    • Auscultate lungs, bronchi, trachea
    • Inspect chest for eschar from circumferential burn
    • Review carbon monoxide poisoning
  • Cardiovascular assessment
    • Monitor for hypovolemia shock s/s
    • ECG because of electrolyte imbalance or if electrical burn
  • Renal assessment

    • Urine output, color and consistency, debris
    • BUN/Crea, NA
  • GI assessment
    • Motility/ bowel sounds/ occult blood in any stool or vomit
    • > 25% TBSA get NG tubes
  • Skin Assessment
    • Size and depth of injury
    • BSA affected
    • Laser Doppler image to determine depth
  • Lab values to review
    • H/H
    • BUN
    • GLU
    • Electrolytes
    • T.protein,alb
    • ABG
    • Xrays
    • CT, US, Bronchoscopy, MRI
  • Nursing diagnosis
  • Interventions to support pulmonary functioning
    • Airway maintenance
    • Positioning, deep breathing
    • Promote ventilation
    • Monitor for gas exchange
    • O2 therapy
    • Antibiotics, diuretics, lol's, paralytics
  • Preventing hypovolemic shock
    1. Rapid fluid infusion- Parkland formula 4ml X kg X TBSA (This is times not divided by.)
    2. 1st 24 hour dosing give ½ the first 8 hours and then the 2nd ½ over next 16 hours
    3. Monitor for s/s of shock
  • Surgical Management of Burns in Emergent Phase
    • Escharotomy
    • Fasciotomy (Done when burnt to the bone)
  • Pain management
    • Opioids- know what route is best to administer and why
    • Complementary and alternative options
    • Environmental changes
    • Surgical excision
  • Preventing respiratory distress
  • Wound care nonsurgical management
    • Remove exudates and necrotic tissue (debridement)
    • Clean
    • Stimulate granulation and revascularization
    • Dressing
  • Silver Nitrate
    • Apply with a gauze dressing
    • Reduces fluid evaporation
    • Bacteriostatic
    • Inexpensive
    • But it does penetrate the eschar and it can deplete Na and K
  • Silver sulfadiazine
    • Apply with a clean glove
    • Effective against both gram neg/pos and yeast
    • But it can cause neutropenia, decreases granulocyte formation
    • Penetrates eschar some
    • Discoloration a gray or blue-green
  • Mafenide acetate
    • BID
    • Penetrates eschar and bacteriostatic
    • But it is painful to apply and remove
    • Can cause metabolic acidosis
  • Nonsurgical debridement
    • Mechanical: use scissors and forceps to cut away the dead tissue during hydrotherapy
    • Chemical: Apply a topical enzyme (collagenase) to the wound during daily dressing changes
  • Dressing the Burn Wound
    • Standard wound dressings- distal to proximal
    • Biologic dressings- temporary
    • Biosynthetic dressings- commonly used on partial thickness burns
    • Synthetic dressings-clear, decrease pain, low infection rate, reduced cost
  • Surgical management
    • Grafting- autografting
    • Xenograph
  • Nursing care of grafts
    • Maintain immobilization of graft sites
    • Elevate extremities
    • Monitor the graft for infection