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burns pathophysiology
Caused by exposure to ultraviolet rays or contact with thermal, electrical, or chemical sources.
● Sunburn
● Thermal Burns
● Electrical Burns
● Chemical Burns
wounds pathophysiology
Injuries that cause breaks in the skin.
● Abrasions
● Lacerations
wound healing process
1) inflammatory phase
● 3-4 days
● Wound is prepared for tissue development
● Hemostasis and inflammation
● Reassess burn after 24-48 hours
2) proliferative phase
● 3 weeks
● Formation of new connective tissue, capillaries, and inflammatory cells
3) maturation or remodeling phase
● Peaks 60 days after injury
● Collagen synthesis and breakdown
local factors that affect healing
● Tissue perfusion
● Inadequate moisture
● Infection
systemic factors that affect healing
● Advanced age
● Stress
● Inadequate nutrition
● Chronic medical conditions
epidermis
● Outermost layer
● Thin, protective barrier
● No blood vessels
dermis
● Middle layer
● Contains blood vessels, nerves, hair follicles, sweat glands
● Provides strength and elasticity
subcutaneous tissue (hypodermis)
● Deepest layer
● Fat and connective tissue
● Insulation, cushioning, energy storage
superficial
● Red/painful, minor swelling
● Epidermis
superficial partial thickness
● Thicker, produces blisters, swelling, blanch with pressure
● Epidermis and superficial dermis
deep partial thickness
● Wet/waxy dry burns, blisters, do not blanch with pressure
● Extend deeper into dermis
full thickness
● Damage to all layers of skin, burns may appear white or charred
which type of burns are able to be self care
superficial and superficial partial thickness
when to refer a burn
chemical or electrical burns
burns larger than 2 inches in diameter
burns covering sensitive areas (face, hands, feet, joints)
signs of infection (fever, advancing redness)
fever, extreme pain, other systemic symptoms
any burn in a child under 2 years old or elderly
patients with compromised wound healing
deel partial thickness or full thickness burns
when to refer a wound
continues to bleed after 10 minutes of pressure
deep wounds (beyond the dermis) or large lacerations
puncture wounds
animal or human bites
wounds containing foreign matter after irrigations
signs of infection
patients with compromised wound healing and/or chronic wounds
wound was caused. by dirty or rusty object
treatment goals of minor burns, sunburn, and wounds
relieve pain, promote healing, and minimize scarring
minor burns treatment
1. Cool the burn with running cool (not cold) water for the first 20 minutes of injury.
a. Found to be effective up to 3 hours after the incident
2. Cleanse the burn with clean tap water or saline products.
3. Apply soothing lotions to burned area.
4. Cover the burn with a sterile gauze bandage or clean cloth. Wrap burned area loosely.
5. Administer OTC pain reliever
sunburn cause, appearance, and risk factors
Cause: overexposure to UVA/UVB radiation
Appearance: redness, pain, and sometimes blisters
Risk Factors: light skin tone, certain medications (photosensitivity)
sunburn prevention
● Stay out of the sun when UV is the highest (10am-4pm)
● Wear protective clothing
● Apply “broad spectrum” sunscreen with a minimum SPF of 15 (AAP) or 30 (AAD)
● Apply physical sunscreens: zinc oxide and titanium dioxide
Topical Relief: Aloe, cool compress
minor wounds treatment
● Stop the bleeding by applying pressure with a clean towel.
● Irrigate with clean tap water or saline products.
○ Gentle irrigation: uncontaminated wounds
○ Aggressive irrigation: contaminated wounds
● Apply soothing lotions, antiseptics, and/or antibiotics to affected area.
● Loosely cover the wound with a sterile gauze bandage or clean cloth.
● Administer OTC pain reliever
gauze dressings
Cost effective. Highly absorbent. Does not provide a moist environment. Need adhesive to keep in place.
adhesive bandages
Cost effective and typically used for minor wounds. Many do not provide a moist environment
hydrocolloid
Combination of a gel-forming agent and outer water- impermeable layer. Provides a moist environment. Hydrocolloid forms a gel when its in contact with the injury
transparent adhesive films
Thin, elastic, waterproof polyurethane films that are permeable to gas but impermeable to bacteria. Recommended for places with high mobility such as joints
how to minimize scarring
● Keep a moist environment for proper wound healing
● Avoid extensive UVR exposure
● Silicone therapy
how to cleanse minor burns and wounds
topical antibiotics: Bacitracin/neomycin/polymyxin B (Neosporin), Bacitracin/polymyxin (Polysporin)
topical antiseptics: Chlorhexidine gluconate (Hibiclens Skin Cleanser), hydrogen peroxide, povidone- iodine solution (Betadine)
what type of skin should ointments and cremas be used on
ointments on intact skin, creams on broken skin
minor burns and wounds pain management and skin protectants
topical anesthetics: Benzocaine, Lidocaine ** often combined with hydrocortisone
systemic analgesics: Acetaminophen, Ibuprofen
moisturizers: Vaseline (petrolatum), Aloe, Aquaphor
special populations at increased risk of experiencing a minor wound, burn, or sunburn
older adults
patients with diabetes
obesity
certain medications