care of patients with burns
TRANSCRIPT
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Care of Patients with Burns
Merianne Joy Galura
I. Categories
a. Thermal
Thermal burns are caused by exposure to or contact with flame, hot liquids,
semi-liquids, semi-solids, or hot objects. Specific examples of thermal burns
are those sustained in residential fires, explosive automobile accidents,
cooking accidents, or with ignition of poorly stored flammable liquids.
b. Chemical
Chemical burns are caused by contact with strong acids, alkalis, or organic
compounds. Chemical burns can result from contact with certain household
cleaning agents and various chemicals used in industry, agriculture, and the
military. Chemical injuries to the eyes and inhalation of chemical fumes can
be very serious.
c. Electrical
Electrical burn injuries are caused by heat that is generated by the electrical
energy as it passes through the body. Electrical injuries can result from
contact with exposed or faulty electrical wiring or high-voltage power lines.
People struck by lightning also sustain electrical injury.
d. Radiation
Radiation burns are the least common type of burn injury and are caused by
exposure to radioactive source. This types of injuries have been associated
with nuclear radiation accidents, the use of ionizing radiation in industry,and therapeutic irradiation. Sunburn is also considered to be a radiation
burn.
e. Smoke and inhalation
Exposure to asphyxiants and smoke commonly occurs with flame injuries,
particularly if the victim was trapped in an enclosed, smoke- filled space.
The pulmonary pathophysiologic changes that occir with inhalation injury
are multifactorial and relate to the severity and type of smoke or gasesinhaled.
II. Classification of burn injury
a. First-degree
First degree partial-thickness burns are superficial and painful and appear
red. They heal own their own by epidermal cell regeneration within about 3-
7 days. Sunburn is a good example.
b. Second-degree
Second-degree partial- thickness appears wet or blistered and are extremely
painful. They heal own their own as long as they are fairly small and they do
not become infected.
c. Third-degree
Third degree full-thickness burns are characterized by damage through the
entire epidermis and dermis. A full-thickness burn appears dry. And may be
mottled and colored black, brown, white, or red. The denatured skin is
called eschar. The burned tissue is most often painless as a result of damage
to the nerve endings however, the surrounding may be painful. Full-
thickness injuries heal by formation of granulation tissue to fill the wounddefect and contracture of the epithelium to close the wound.
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d. Fourth-degree
Fourth-degree full-thickness burns involves skin, subcutaneous tissue,
muscle, and sometimes bones. The skin appears charred or maybe
completely burned away. Fourth-degree burns require extensive
debridement and skin grafting. Amputations are common in these extensive
injuries.
III. Body surface area injured
a. Rule of nines
The rule of nines is a quick way to estimate the extent of burns. The systems
assign percentages in multiples of nine to major body surfaces. The basis of
the rule is that the body is divided into anatomic sections, each of which
represents nine percent, or a multiple of nine percent, of the total body
surface area.
b. Lund and Browder Method
A more precise method of estimating the extent of a burn is the Lund and
Browder Method, which recognizes that the percentage of a surface area of
various anatomic parts changes with growth. By dividing the body into very
small areas and providing an estimate of the proportion of total body
surface area accounted for by each body part, one can obtain a reliable
estimate of total body surface area burned.
c. Palm Method
In patients with scattered burns, the palm method may used to estimate the
extent of the burns. The size of the patients palm is approximately onepercent of the total body surface area. The percent burned is derived by
visualizing the number of client hands it would take to cover the burn area.
This method is useful when the burned area or areas is small, less than five
percent.
IV. Phases of burn management
a.
Emergent phase
1. Pathophysiology and clinical manifestations
Fluid and electrolyte shifts. The greatest initial threat to a patient with a
major burn is hypovolemic shock. It is caused by a massive shift of fluids out
of the blood vessels as a result increased capillary permeability and can
begin as early as 20 minutes postburn. As the capillary walls become more
permeable, water, sodium, and later plasma proteins move into interstitial
spaces and other surrounding tissue. The colloidal osmotic pressure
decreases with progressive loss of protein from the vascular space. This
results in more fluid shifting out of the vascular space into the interstitial
space. Fluid also moves to areas that normally have minimal to no fluid.
The net result of the fluid shift is intravascular volume deletion. Decreased
blood pressure, increased pulse rate, and other manifestations of
hypovolemic shock are clinically detectable signs. If not corrected,
irreversible shock and death may result. Another source of fluid loss is
insensible loss by evaporation from large, denuded body surfaces.
The circulatory status is also impaired because of the hemolysis of RBCs. The
RBCs are hemolyzed by a circulating factor released at the time of the burn
as well as by the direct insult of the burn injury. Thrombosis in the
capillaries of the burned tissue causes an additional loss of circulating RBCs.
An elevated hematocrit is commonly caused by hemoconcentration
resulting from fluid loss.
Sodium and potassium are involved in electrolyte shifts. Sodium rapidly
shifts to the interstitial spaces and remains there until edema formationceases. A potassium shift develops initially because injured cells and
hemolyzed RBCs release potassium into the circulation.
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Toward the end of the emergent phase, capillary membrane permeability
will be restored if fluid replacement is adequate. Fluid loss and edema
formation cease. Interstitial fluid gradually return to the vascular space.
Inflammation and healing. Burn injury causes coagulation necrosis,
whereby tissues and vessels are damaged or destroyed. Neutrophils and
monocytes accumulate at the site of injury. Fibroblasts and newly formed
collagen fibrils appear and begin wound repair within the first six to twelve
hours after injury.
Immunologic changes. Burn injury causes widespread impairment of the
immune system. The skin barrier to invading organisms is destroyed,
resulting in bone marrow depression and decreased circulating levels of
immunoglobulins. Defects occur in the function of WBCs. The inflammatory
cytokine cascade triggered by tissue damage impairs the function of
lymphocytes, monocytes, and neutrophils, which puts the patient at greater
risk for infection.
2. Complications
Cardiovascular. Cardiovascular system complications include dysrhythmias
and hypovolemic shock, which may progress to irreversible shock.
Circulation to the extremities can be severely impaired by circumferential
burns and subsequent edema formation. These processes occlude the blood
supply, causing ischemia, paresthesias, necrosis, and eventually gangrene.
An escharotomy (a scalpel incision through the full-thickness eschar) is
frequently performed following transfer to a burn unit to restore circulation
to compromised extremities.
Initially, there is an increase in blood viscosity with burn injuries because of
fluid loss that occurs in the emergent period. Microcirculation is impaired
because of the damage to the skin structures that contain small capillary
systems. These two events result in a phenomenon termed sludging.Sludging can be corrected by adequate fluid replacement.
Respiratory. The respiratory system is especially vulnerable to two types of
injury: (1) upper airway burns that cause edema formation and obstruction
of the airway and (2) inhalation injury. Upper airway distress may occur with
or without smoke inhalation, and airway injury at either level may occur in
the absence of burn injury to the skin.
Upper Respiratory Tract Injury. Upper respiratory tract injury results from
direct heat injury edema formation and can lead to mechanical airway
obstruction and asphyxia. The edema associated with an upper respiratory
tract burn injury can be massive and onset insidious and it occurs in all
patients with major thermal burn injuries. Mechanical obstruction of the
airway is not limited to the patient with flame burns to the upper airway.
Swelling that accompanies scald burns to the face and neck can be lethal, as
can pressure from the accumulated edema compressing the airway
externally. Flame burns to the neck and chest may contribute to respiratory
difficulty because the inelastic eschar becomes tight and constricting due to
the underlying edema.
Inhalation Injury. Inhalation injury refers to a direct result at the alveolar
level secondary to the inhalation of chemical fumes or smoke. The result is
interstitial edema that prevents the diffusion of oxygen from alveoli into the
circulatory system. The patient with smoke inhalation may not exhibit
physical manifestations of injury during the first 24 hours after sustaining a
major burn. Fiberoptic bronchoscopy can be used as an early diagnostic tool
for suspected inhalation injury. Another diagnostic indicator may be a
history of prolonged exposure to smoke or fumes. Therefore the nurse must
especially sensitive to signs of respiratory distress such as increased
agitation or change in the rate or character of respirations. Sputum that
contains carbon may be present. Generally, there is no correlation between
the extent of TBSA burn and severity of inhalation injury because inhalation
is a factor of time exposure plus the type and density of the material
inhaled. The initial chest x-ray may appear normal on admission, withchanges noted over the next 24-28 hours. ANG values may also be within
the normal range on admission and then change during hospitalization.
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Other Respiratory Problems. The patient with preexisting respiratory
problems (e.g., chronic obstructive pulmonary disease) is more likely to
develop a respiratory infection. Pneumonia is a common complication of
major burns (especially in the older adult) because of debilitation, abundant
microbial flora, and relative immobility of the patient. If fluid replacement is
vigorous, the older adult patient can develop pulmonary edema.
Urinary. The most common complication of the urinary system in the
emergent phase is acute tubular necrosis (ATN). If patient is allowed to
become hypovolemic, blood flow to the kidneys may be decreased, causing
renal ischemia. If this continues, acute renal failure may develop.
With full-thickness and electrical burns, myoglobin (from muscle cell
breakdown) and hemoglobin (from RBC breakdown) are released into to
blood stream and occlude renal tubules. Adequate fluid replacement and
diuretics can counteract myoglobin and hemoglobin obstruction of tubules.
3. Nursing and collaborative management
Airway management. Airway management frequently involves early
endotracheal (preferably orotracheal) intubation. Early intubation
eliminates the necessity for emergency tracheostomy after respiratory
problems have become apparent. In general, the patient with major injuries
involving burns to the face and neck requires intubation within 1 to 2 hours
after burn injury. After intubation, the patient may be placed on ventilator
assistance, and the delivered oxygen concentration is determined by
assessing ABG values. Extubation may be indicated when the edema
resolves usually 3 to 6 days after burn injury, unless severe inhalation injury
is involved. Escharotomies of the chest wall may be needed to relieve
respiratory distress secondary to circumferential, full-thickness burns of the
neck and trunk.
Within 6 to 12 hours after injury in which smoke inhalation is suspected, afiberoptic bronchoscopy should be performed to assess the lower
respiratory tract. Significant findings include the appearance of
carbonaceous material, mucosal edema, vesicles, erythema, hemorrhage,
and ulceration.
When intubation is not performed, treatment of inhalation injury includes
administration of humidified air and supplemental oxygen as required. The
patient should be placed in a high-Fowlers position unless contraindicated
by a possible spinal injury, in which case reverse Trendelenburg may be the
position of choice. The patient should also be encouraged to cough and
deep breath every hour, be repositioned every 1 to 2 hours, given chest
physiotherapy, and suctioned as necessary. If respiratory failure is
impending, intubation should be performed and the patient should be
supported with mechanical ventilation. Positive end-expiratory pressure
(PEEP) may be used to prevent collapse of the alveoli and progressive
respiratory failure. Bronchodilators may be administered to treat severe
bronchospasm. CO poisoning is treated by administering 100% O2 until
carboxyhemoglobins return to normal. The use of hyperbaric oxygen
therapy remains controversial.
Fluid therapy. As soon as the patient (usually with a >15% TBSA burn)
arrives at the health care facility, at least one (and usually two) large-bore
intravenous (IV) access routes must be obtained. It is critical to establish IV
access that can accommodate large volumes of fluid. For burns >30% TBSA,
central lines and arterial lines for fluid/medication/blood access should be
considered.
The extent of an adult’s burn should be assessed using the Rule of Nines or
Lund-Browder charts. These universal standards will allow for the accurate
estimation of the fluid resuscitation requirements.
IV fluid therapy is usually instituted in the adult patient with burns >15%
TBSA. The type of fluid replacement is determined by the size and depth of
burn, age of the patient, and individual considerations, such as dehydration
in the preburn state or preexisting chronic illness. Each burn unit has a
preference for a replacement regimen. Fluid replacement is accomplished
with crystalloid solutions (usually lactated Ringer’s), colloids (albumin), or acombination of the two, paramedics generally give IV saline until the
patient’s arrival at the hospital.
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Wound care. Wound care should be delayed until a patent airway,
adequate circulation, and adequate fluid replacement have been
established. Full-thickness wounds will be dry and waxy white to dark
brown/black and will have only minor, localized sensation because nerve
endings have been destroyed. Partial-thickness wounds are pink to cherry
red and wet and shiny with serous exudates. These wounds may or may not
have intact blisters and are painful when touched or exposed to air.
Cleansing and gentle debridement, using scissors and forceps, can occur in a
hydrotherapy tub, cart shower, shower, or patient bed/stretcher. Extensive,
surgical debridement should be performed in the operating room (OR).
During debridement , necrotic skin is removed. Releasing escharotomies and
fasciotomies can be carried out in the emergent phase, usually in burn units
by burn physicians. Care should be taken to accomplish these procedures as
quickly and effectively as possible.
Patients find the initial wound care to be both physically and psychologically
demanding. Immersion in a tank for longer than 20-30 minutes can cause
electrolyte loss from open burned areas. Prolonged immersion can lead to
chilling after the bath and cross-contamination of wounds from one area of
the body to another. Because of these factors, many institutions no longer
submerge or “tub” their burn patients. Instead they are showered using a
cart shower or, if the patient is well enough and the TBSA burn is small, a
regular shower can be used. The water does not need to be sterile; tap
water, not exceeding 1040F (40
0C), is acceptable. Because pathogenic
organisms are present on the burn wound, a surgical detergent,
disinfectant, or cleansing agent may be used.
Infection is most serious threat to further tissue injury and possible sepsis.
Survival is directly related to prevention of wound contamination. The
source or infection in burn wounds is the patient’s own flora, predominantly
from the skin, respiratory tract, and gastrointestinal (GI) tract. The
prevention of cross-contamination from one patient to another is a priority
for nursing care. Two types of wound treatment used to control infectionare the open method and the use of multiple dressing change method, the
patient’s burn is covered with a topical antimicrobial and has no dressing
over the wound. In the multiple dressing change method, sterile gauze
dressings are impregnated with or laid over a topical antimicrobial. These
dressings are changed anywhere from every 12-24 hours to once every 3
days, depending upon the topical agent and dressing used. Most burn units
support the concept of moist wound healing and use dressings to cover the
burned areas, with the exception of the burned face.
When the patient’s open burned wounds are exposed, staff must wear
disposable hats, masks, gowns, and gloves. When removing contaminated
dressings and washing the dirty wound, the nurse may use nonsterile,
disposable gloves. Sterile gloves are used when applying ointments and
inner, sterile dressing.
Coverage is the primary goal for burn wounds. Because there is rarely
enough unburned skin in the major (>50%) burn patient for immediate skin
grafting, other temporary wound closure methods are sometimes used.
Allograft or homograft (usually from cadavers) is used. Along with newer
biosynthetic options, with varying frequency among burn units.
Drug therapy
Analgesics and Sedatives. Analgesics are ordered to promote patient
comfort. Early in the postburn period, IV medications should be given
because (1) GI function is slowed or impaired due to shock or paralytic ileus
and (2) intramuscular (IM) injections will not be absorbed adequately in
burned or edematous areas, causing pooling of medications in the tissues.
When fluid mobilization begins, the patient could be inadvertently
overdosed from the interstitial accumulation of previous IM medications.
The need for analgesia must be reevaluated frequently as patient’s needs
may change and tolerance to medications may develop overtime. The drug
of choice for pain control is morphine, but hydromorphone and methadone
may also be used. When given appropriately, these drugs should provide
adequate pain control. Sedative agents should also be given along with
analgesics to control the anxiety that patients experience. Analgesic
requirements can vary tremendously from one patient to another. Theextent and depth of burn may not correlate with pain intensity. Hospital
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pharmacists, psychiatrists, and multidisciplinary pain services are valuable
resources for the more complex situations.
Tetanus Immunization. Tetanus toxoid is given routinely to all burn patients
because of the likelihood of anaerobic burn wound contamination. If the
patient has not received an active immunization within 10 years before the
burn injury, tetanus immunoglobulins should be considered.
Antimicrobial Agents. After the wound is cleansed, topical agents are
applied and covered with a light dressing. Systemic antibiotics are not
usually used in controlling burn wound flora because there is little delivery
of antibiotics to the wound. Some topical agents penetrate the eschar,
thereby inhibiting bacterial invasion of the wound. Silver sulfadiazine
(Silvadene, Flamazine) and mafenide acetate (Sulfamylon) are commonly
used. Silver-impregnated dressings (acticoat, Silverlon, Aquacel Ag) that can
be left on for up to 3 days and in some cases longer are used in some burn
units. They are effective against many organisms. Systemic sepsis remains
the leading cause of death in patient with major burns, which may lead to
multiple organ dysfunction syndrome. Systemic antibiotics therapy is
initiated when the clinical diagnosis of invasive burn wound sepsis is made,
or when some other sources of sepsis i s identified (e.g. pneumonia).
Frequently, fungal infections develop in the patient’s mucous membranes
(mouth and genitalia) as a result of antibiotic therapy and low resistance in
the host.
Nutritional therapy. Fluid replacement takes priority over nutritional needs
in the initial emergent phase. However, early and aggressive nutritional
support within several hours of the burn injury can decrease mortality and
complications, optimize healing of the burn wound, and minimize negative
effects of the hypermetabolism and catabolism. Nonintubated patients with
a <20% TBSA burn will generally be able to eat enough to meet their
nutritional requirements. Intubated patients and/or those with larger burns
require additional support. Enteral feedings preserves GI function, increases
intestinal blood flow, and promotes optimal conditions for wound healing.The patient with large (>20% TBSA) burns frequently develops paralytic ileus
within a few hours as a result of the body’s major response to major
trauma. If a large nasogastric tube is inserted on admission, gastric residuals
should be checked frequently to rule out paralytic ileus and delayed gastric
emptying. In general, feedings can be commended slowly at 20 to 40 ml/hr
and can be increased to the goal rate within 24-48 hours.
A hypermetabolic state proportional to the size of the wound occurs after a
major burn injury. Resting metabolic expenditure may be increased by 50%
to 100 % above normal in patients with major burns. Core temperature is
elevated. Catecholamines, which stimulate catabolism and heat production,
are increased. Massive catabolism can occur and is characterized by protein
breakdown and increased gluconeogenesis. Failure to supply adequate
calories and protein lead to malnutrition and delayed healing. Calorie-
containing nutritional supplements and milkshakes are often given because
of the great need for calories. Protein powder can also be added to food
and liquids. Supplemental vitamins may be given as early as the emergent
phase, with iron supplements often started in the acute phase.
b. Acute Phase
1. Pathophysiology and clinical manifestations
Burn injury involves pathophysiologic changes in many body systems.
Diuresis from fluid mobilization occurs, and the patient is less edematous.
Areas that are full- or partial-thickness burns are more evident than in the
emergent phase. Bowel sounds return. The patient may now become
aware of the enormity of the situation. Some healing begins as WBCs
surround the burn wound and phagocytosis occurs. Necrotic tissue begins
to slough. Fibrolasts lay down matrices of the collagen precursors that
eventually form granulation tissue. Kept free from infection and
dessication, a partial-thickness burn wound will heal from the edges and
from the dermal bed below. However, full-thickness burn wounds, unless
extremely small, must be covered by skin grafts. Often, healing time and
length of hospitalization are decreased by early excision and grafting.Partial-thickness wounds form eschar, which begins separating fairly soon
after injury. Once the eschar is removed, re-epithelialization begins at
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the wound margins and appears as red or pink scar tissue. Epithelial
buds from the derma bed eventually close in the wound, which then
heals spontaneously without surgical intervention, usually within 10 to
14 days.
Margins of full thickness eschar take longer to separate than partial-
thickness eschar. As a result, full-thickness wounds require surgical
debridement and skin grafting for healing.
2. Complications
Infection. The body’s first line of defense, the skin, has been destroyed by
burn injury. Pathogens often proliferate before phagocytosis has
adequately begun. The burn wound is now colonized with organisms. If
the bacterial density at the junction of the eschar with underlying viable
tissue rises to greater than 105/g of tissue, the patient has a burn wound
infection. In the presence of an infection, localized inflammation,
induration, and sometimes suppuration can be seen at the burn wound
margins. Partial-thickness burns can convert to full-thickness wounds
when these organisms invade viable, adjacent, unburned tissue.
Invasive wound infections may be treated with systemic antibioticsbased on culture results.
Cardiovascular and Respiratory Systems. The same cardiovascular and
respiratory system complications present in the emergent phase may
continue into the acute phase of care. In addition, new problems might
arise, requiring timely intervention.
Neurologic System. Neurologically, the patient usually has no physical
symptoms, unless severe hypoxia from respiratory injuries or
complications from electrical injuries occur. However, some patients
may demonstrate certain behaviors that are not completely
understood. The patient can become extremely disoriented, maywithdraw or become combative, and may have hallucinations and
frequent nightmare-like episodes. Delirium is more acute at night and
occurs more often in the older patient. This is a transient state, lasting
from a day or two to several weeks. Various causes have been
considered, including electrolyte imbalance, stress, cerebral edema,
sepsis, intensive care unit psychosis syndrome, and the use of analgesics
and antianxiety drugs.
Musculoskeletal System. The musculoskeletal system is particularly prone
to complications during the acute phase. As the burns begin to heal and
scar tissue forms, the skin is les supple and pliant. ROM may be limited,
and contractures can occur. Because of pain, the patient will prefer to
assume a flexed position for comfort. Splinting can be beneficial to
prevent or reduce contracture formation.
Gastrointestinal System. The GI system may also exhibit complications
during this phase. Paralytic ileus results from sepsis. Diarrhea may be
caused by the use of supplemental feedings or antibiotics. Constipation
can occur as a side effect of opioid analgesics decreased mobility, and a
low-fiber diet. Curling’s ulcer is caused by a generalized stress response
resulting in decreased production of mucus and increase gastric acid
secretion. This condition is due to the decreased blood flow to the GItract during the hypovolemic shock phase. Many patients with major
burns also have occult blood in their stools during the acute phase.
Endocrine System. An increase in blood glucose levels may be seen
transiently because of stress-mediated cortisol and catecholamine
release, resulting in the increased mobilization of glycogen stores,
gluconeogenesis, and the subsequent production of glucose. There is
also an increase in insulin production and release. However, insulin’s
effectiveness is decreased because of relative insulin insensitivity,
leading to an elevated blood glucose level. Later, hyperglycemia can be
caused by the increased calorie intake necessary to meet some patient’s
metabolic requirements. When this occurs, the treatment issupplemental IV insulin, not decrease feeding. Serum glucose levels are
checked frequently, and an appropriate amount of insulin is given if
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hyperglycemia is present. As the patient’s metabolic demands are met
and les stress is placed on the entire system, this stress-induced
condition is reversed.
3. Nursing and Collaborative Management
Wound Care. The goals of wound care are to (1) cleanse and debride the
area of necrotic tissue and debris that would promote bacterial growth
and (2) promote wound re-epithelialization and/or successful skin
grafting.
Wound care consists of daily observation, assessment, cleansing,
debridement, and dressing reapplication. Nonsurgical debridement,
dressing changes, topical antibiotic therapy, graft care, and donor site
care may be performed from 2 times daily to once every few days.
When partial-thickness burn wounds have been debrided, a protective,
coarse or fine-meshed, greasy gauze dressing is applied to protect the
re-epithlializing cells as they resurface and close the open wound bed. If
grafting is necessary, the meshed, split-thickness skin graft may be
protected with the same greasy gauze dressings next to the graft,
followed by middle and outer dressings.
Excision and Grafting
During the procedure of excision and grafting, eschar is removed down to
the subcutaneous tissue or fascia, depending on the degree of injury. A
graft is then placed on clean, viable tissue to achieve good adherence.
Hemostasis is achieved by pressure and the application of topical
thrombin or epinephrine, after which the wound is covered with
autograft skin. With early excision, function is restored and scar tissue
formation is minimized. Because the dead tissue is planed off until
viable tissue is reached, extensive bleeding is expected to occur, which
may pose a problem when grafting is performed. Frequent observation
and appropriate nursing interventions can help identify and manageexcessive postoperative bleeding and enhance graft survival.
Pain management. Burn patients experience two kinds of pain: (1)
continuous, background pain that exists throughout the day and night
and (2) treatment induced pain associated with dressing changes,
ambulation, and rehabilitation activities. The first line of treatment is
pharmacologic. With background pain, if the patient has a continuous IV
infusion of morphine, this will allow for a steady, slow-release twice-a-
day opioid medication. For treatment-induce pain, premedication with
an analgesic and an anxiolytic is required via the IV or oral route. During
treatment or activity, small doses should be given to keep the patient as
comfortable as possible.
Pain can also be managed using nonpharmacologic strategies, such as
relaxation tapes, visualization, hypnosis, guided imagery, biofeedback,
and meditation. These techniques are considered adjuncts to traditional
pharmacologic treatments of pain. They are not meant to be used
exclusively to control pain in the burn patient. An important point to
remember about pain management is that the more control the patient
has in managing the pain, the more successful the chosen strategies.
Physical and Occupational Therapy. Rigorous physical therapy throughout
burn recovery is imperative to maintain optimal joint function. A goodtime for exercise is during and after wound cleansing when the skin is
softer and bulky dressings are removes. Passive and active ROM should
be performed on all joints. The patient with neck burns must sleep
without pillows or with head hanging slightly over the top of the
mattress to encourage hyperextension. Custom-fitted splints are
designed to keep the joints in functional position and must be re-
examined frequently to ensure an optimal fit.
Nutritional Therapy. The goal of nutrition therapy during the acute burn
phase is to provide adequate calories and protein to promote healing.
The burn patient is in a hypermetabolic and highly catabolic state ad a
result of burn injury. Infection also increases metabolic rate.Meeting daily caloric requirements is crucial and should begin within the
first 1 to 2 days postburn. If the patient is on a mechanical ventilator or
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unable to consume adequate calories by mouth, a feeding tube can be
placed and a complete liquid diet administered. If caloric requirements
cannot be met by enteral feeding alone, parenteral nutrition may be
given temporarily while continuing to deliver enteral feedings. The alert
patient should be encouraged to eat high-protein, high-carbohydrate
foods to meet increased caloric needs. If family members wish to bring
in favorite foods from home, this should be encouraged. Appetite is
usually diminished, and constant encouragement may be necessary to
achieve adequate intake.
Psychosocial Care. The patient and the family have many needs for
psychosocial support during the often lengthy, unpredictable, and
complex course of care. The nursing staff has important support and
counseling roles to play. Pastoral care may also be helpful for some
patients and their families.
c. Rehabilitation Phase
1. Pathophysiological changes and clinical manifestations
Burn wounds heal either by primary intention or by grafting. Layers of
epithelialization begin rebuilding the tissue structure destroyed by the
burn injury. Collagen fibers, present in the new scar tissue, assist with
healing and add strength to weakened areas. The new skin appears flat
and pink. In approximately 4 to 6 weeks, the area becomes raised and
hyperemic. If adequate ROM is not instituted, the new tissue will
shorten, causing a contracture. Mature healing is achieved in 6 months
to 2 years when suppleness has returned, and the pink or red color has
faded to a slightly lighter hue that the surrounding unburned tissue.
Often, skin never completely regains its original color.
The patient typically experiences discomfort from itching where healing is
occurring. As “old” epithelium is replaced by new cells, flaking willoccur. The newly formed skin is extremely sensitive to trauma. Blisters
and skin tears are likely to develop from slight pressure or friction.
Additionally, these newly healed areas can be hypersensitive or
hyposensitive to cold, heat, and touch. Grafted areas are more likely to
be hypersensitive until peripheral nerve regeneration occurs. Healed
burn areas must be protected from direct sunlight for 6 to 9 months to
prevent hyperpigmentation and sunburn injury.
2. Complications
The most common complications during the rehabilitation phase are skin
and joint contractures and hypertrophic scarring. A contracture
develops as a result of the shortening of scar tissue in the flexor tissues
of a joint. Areas that are most susceptible to contracture formation
include the anterior and lateral neck areas, axillae, antecubital fossae,
fingers, groin areas, popliteal fossae, knees, and ankles. These areas
encompass major joints. Not only does the skin over these areas
develop contractures, but the underlying tissues also have a tendency
to shorten during the healing process.
Because of pain, the patient will prefer to assume a flexed position for
comfort. This position predisposes wounds to contracture formation.
Positioning, splinting, and exercise should be instituted to minimize thiscomplication. These procedures should be continued until the skin
matures. Therapy is aimed at extension of body parts because the
flexors are stronger than the extensors burned legs may be wrapped
with elastic bandages to assist with circulation to leg graft and donor
sited before ambulation. This additional pressure prevents blister
formation, promotes venous return, and decrease pain and itchiness.
Once the skin is completely healed and less fragile, custom-fitted
pressure garments replace the elastic bandages.
3. Nursing and Collaborative Management
During the rehabilitation phase, both the patient and the family are activelyencouraged to participate in care. Since the patient may go home with
small, unhealed wounds, education and “hands-on” instruction will be
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needed in dressing changes and wound care. Constant encouragement
and reassurance are necessary to maintain a patient’s morale,
particularly once the patient realizes that recovery can be slow and
rehabilitation may need to be a primary focus for at least the next 6 to
12 months.
Because of the tremendous psychologic impact of a burn injury, health care
providers should be particularly sensitive and attuned to the patient’s
emotions and concerns. It is essential that patients be encouraged to
discuss their fears regarding loss of their life as once they knew it, loss
of function, temporary/permanent deformity and disfigurement, return
to work and home life, and financial burdens resulting from a long and
costly hospitalization. Care should also be taken to address individual
spiritual and cultural needs, as both these facets of a patient’s life play a
role in recovery.
Encouraging appropriate independence, an eventual return to preborn
activities, and interactions with other burn survivors will involve the
patient in familiar activities that may bring comfort and help to restore
self-esteem. Counseling should be made available after the patient goes
home. Patients need reassurance that their feelings during this period
of adjustment are normal, and tat their frustration is to be expected asthey attempt to resume a normal lifestyle.