Burns - Acut Phase

    a) Define Burns
    b) How will you assess the percentage of Burns ?
    c.) List the clinical manifestations of Burns
    d) Write the nursing management for Burns

Definition
Burns is an injury casused by
Thermal agents like flames, hot objects, (Burns)
steam, hot liquids (Scalds)
Chemical agents (Chemicals like acids, alkalis)
Electricity (Electric burns)




Emergency Management of Thermal Burns
ABC
Airway & Breathing : Breathing assessed, a patent airway established immediately, airway esbablished and humidified 100% O2 given by mask or nasal cannula or endotracheal tube and initiate manual ventilation - encourage coughing/suctioning/bronchial suctioning. if needed use ventilator, monitor arteerial blood gas values, pulse oximetry readings, carboxyyhemoglobin levels, look for hypoxia

Circulatory system assessed : apical pulse and blood pressure monitored freuently- remove blood pressure cuff after each reading - pulse rate less than 110/minute aimed at.
Insert a large bore IV line Prevent shock by IV fluids(Ringer's solution, normal saline, colloids, whole blood, plasma and  plasma expanders used.

Serum electrolytes to be measured. Monitor vital signs. Look for dehydration or overload of fluids.

Consensus formula :
2 to 4 mL/kg/% TBSA  (Total Burnt Surface Area)
for a 70 kg man with 50% burns
2 × 70 × 50 = 7,000 mL/24 hours
Plan to administer: First 8 hours = 3,500 mL, or 437 mL/
hour; next 16 hours = 3,500 mL, or 219 mL/hour

Guard against compartmental syndrome : Doppler study the circulation in the limbs. Exchorotomy when needd.

Monitor urinary ouput: watch out for acute renal failure - BUN, serum creatinine, look for hemoglobin or myoglobin - 30-50 ml/hour ideal

Head to toe survey to identify potentially life threatening injuries - cervical spinal injuries, head injuries - treatment initiated

Respiratory System
Look for erythema or blistering  oflips  or buccdal  mucosa, singed nostrils, burns of face, neck or chest, increasing hoarseness, soot in sputum or tracheal tissue in respiratory secretions - chest X-Ray

Wound management
Wound assessment according to rule of nines

Attending to the wound
Frequent short moments of wrapping the wounds with ordinary cool water-soaked towels (not cold or ice cool water)
Remove clothes except the very adherent
Cover the wound with sterile dressings to prevent infection.

Prevention of infection
Take all aseptic precautions from the very beginning
Common bacteria infecting the burn wound : Staphylococcs, Proteus, Pseudomonas, Excherichia coli, and Klebsiella
Fungi and Candida albicans also grow easily in burn wounds
Topical antibacterial therapy started - Silver sulfadiazine, silver nitrate 0.5 % aqueous solution
Pain relief - opioid analgesics, antianxiety medication if needed

Prevention or treatment of complications including carbon monoxide poisoning and infection

Nutritional support: assess the bowel sounds, look for paralytic ileus and abdominal distention; look for occult blood in stools curling's ulcer and upper GI bleeding Pantaprazole needed

H/O pre-existing diseases elicited
Assess for progressive edema as fluid shifts occur; elevate affected limbs


Follow up Nursing
Prevent hypertrophic scarring - elastic compression garments
Prevent contractures - for one year - lubricating  the skin - Physical and occupational  therapies
Pain relief - uninterrupted sleep - console and encourage when pts have nightmares - hypnotic agents
Gradually increase activity tolerance
Improve body image, psychosocial reactions
Promote  Home  and  Community based care :  wound care, using mild soaps, topical agents,
Continuing care : with plastic surgeons, attend rehabilitation center. group meetings arranged

Complications of Burns
Acute Phase : -
Heart failure and pulmonary oedema
Sepsis
Acute respiratory failure
Acute Respiratory distress syndrome
Visceral damage (Electrical burns)

Chronic Phase
Hypertrophic scars
Contractures
Inadequate psychological adaptation to burn injury





See the next page also

Total Burnt Surface Area is calculated according to Rule of Nines

PALM METHOD
In patients with scattered burns, a method to estimate the per-
centage of burn is the palm method. The size of the patient’s palm
is approximately 1% of TBSA.
Clinical Manifestations
< 25% local response
> 25% both local and systemic response
Charred skin, charred hair
Burns not uniform
Varying depths. 
Distinguishing a minor burn from a more serious burn involves determining the extent of tissue damage.

The following are three classifications of burns:

First-degree burn
This minor burn affects epidermis:  redness, swelling and pain. Heals with first-aid measures. Sunburn is a classic example.

Second-degree burn  
Affects both the epidermis and dermis.
Red, white or splotchy skin, pain, and swelling. Looks wet or moist.
Blisters may develop, and pain can be severe. 
Deep second-degree burns can cause scarring.

Third-degree burn
Reaches into the fat layer beneath the skin. 
Burned areas charred black or white. 
The skin looks waxy or leathery. 
Third-degree burns destroys nerves, causing numbness. 
The patient may  have difficult breathing or experience smoke inhalation or carbon monoxide poisoning.

Pathophysiology
Loss of capillary integrity and a subsequent shift of fluid, sodium and protein from the intravascular space into the interstitial spaces  dehydration - peak at 6-8 hurs - When the capillary integrity regained burn shock resolves - diuresis continues for several days to 2 weeks
Blood pressure drops  shock

Burn edema - massive systemic edema - maximal after 24 hurs - lasts for 2 days - takes 7-10 days to resolve completely - circemferential burn increases the edema - pt may need eschorotomy

Evaporation loss of fluid may reach 3-5 L per day in one day
Hyponatremia
Hyperkalemia
Red cell destruction  anemia
Abnormalities in coagulation occur (Thrombocytopenia)

Smoke inhalation - disorientation, unconsciousness
Bronchoconstriction
Restriction of breathing due to circumferential burn of the chest
Hypoxia
Edema of the respiratory tract
Carbon monoxide poisoning
Airway obstruction may occur rapidly in hours - respiratory acidosis my occur gradually over the first 5 days
Labored breathing, bloody sputum, tachypnea, erythema and blistering of the oral or pharyngeal mucosa may occur

Renal function altered : myoglobinuria  acute tubular necrosis  acute renal failure

Loss of skin  inability to regulate body temperature - hypothermia in the early hours of the injury. Later hyperthermia even in the absence of infection

Paralytic ileus - abdominal distention, Curling's ulcer  occult blood in stools - GI Bleeding  "coffee ground" vomiting


Complications
ABC : Airway, breathing, Circulation

Acute Complications : (ABC)
Shock
Airway obstuction
Respiratory arrest
Pulmonary Edema
Carbon monoxide poisoning
Increased coagulability - DIC
Infection

Chronic Complications
Hypertrophic scar formation
Contractures
Inadequate psychological adaptations to burn injury







page view counter
search engine by freefind advanced
site search engine by freefind