Burns Flashcards

1
Q

What is the definition of a burn?

A

Coagulative destruction of the skin, sometimes including deeper tissues or organs.

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2
Q

What are the common causes of burns?

A

Dry heat, moist heat, electricity, chemical caustics, irradiation.

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3
Q

What is a scald?

A

A burn resulting from moist heat.

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4
Q

What is the estimated global incidence of burns annually?

A

11 million people.

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5
Q

What is the largest organ in the human body?

A

The skin.

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6
Q

What are the layers of the skin?

A

Epidermis and dermis.

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7
Q

Who conceptualized the zones of burn injury?

A

Jackson in 1947.

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8
Q

What are the three zones of burn injury?

A

Zone of coagulation, zone of stasis, zone of hyperemia.

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9
Q

What are the classifications of burn depth?

A

Superficial, partial-thickness, deep partial-thickness, full-thickness.

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10
Q

What is the most important factor for good burn outcomes?

A

Immediate resuscitation and early wound closure.

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11
Q

What is the primary objective of burn resuscitation?

A

To prevent burn shock and maintain perfusion.

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12
Q

What is the recommended pre-hospital burn care?

A

Stop the burn process, cool with water for 10 minutes, wrap with a clean cloth.

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13
Q

What is the primary survey approach for burn patients?

A

A: Airway, B: Breathing, C: Circulation, D: Disability, E: Exposure, F: Fluid resuscitation.

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14
Q

What is the most concerning complication of inhalation injury?

A

Airway edema leading to respiratory failure.

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15
Q

What are signs of inhalation injury?

A

Facial burns, carbonaceous sputum, hoarseness, singed nasal hairs.

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16
Q

What is the rule of nines used for?

A

Estimating total body surface area (TBSA) affected by burns.

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17
Q

What is the Parkland formula for fluid resuscitation?

A

4 x %BSA x weight (kg) = total fluid (ml) for first 24 hours.

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18
Q

How is fluid given in the first 24 hours of burn resuscitation?

A

Half in the first 8 hours, the remaining half in the next 16 hours.

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19
Q

What is the recommended fluid for initial burn resuscitation?

A

Ringer’s lactate.

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20
Q

What is burn shock?

A

Hypovolemic shock caused by fluid loss due to increased capillary permeability.

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21
Q

What are the two phases of burn pathophysiology?

A

Resuscitative phase and hypermetabolic phase.

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22
Q

Why is early enteral nutrition important in burn patients?

A

To reduce bacterial translocation and support metabolic demands.

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23
Q

What are common systemic responses to burns?

A

Hypermetabolism, immune suppression, renal dysfunction, cardiovascular changes.

24
Q

What laboratory investigations are essential for burn patients?

A

CBC, electrolytes, renal function tests, blood gases, wound swabs for culture.

25
What is a circumferential burn?
A burn that completely encircles a body part, potentially causing compartment syndrome.
26
What is the treatment for compartment syndrome in burns?
Escharotomy.
27
What are the six Ps of compartment syndrome?
Pain, paresthesia, paralysis, poikilothermia, pulselessness, pallor.
28
What is the importance of pain control in burn patients?
Reduces stress response and improves patient comfort during dressing changes.
29
What is the treatment for inhalation injury?
Humidified oxygen, bronchodilators, chest physiotherapy, mechanical ventilation if needed.
30
What are the complications of over-resuscitation?
Pulmonary edema, abdominal compartment syndrome, extremity compartment syndrome.
31
What is the best way to prevent hypothermia in burn patients?
Maintain a warm environment, use heated IV fluids, and cover the patient.
32
What are the common burn wound infections?
Cellulitis, necrotizing fasciitis, sepsis.
33
What are the signs of burn wound infection?
Increased pain, fever, purulent discharge, erythema extending beyond the wound margins.
34
What is the most common cause of burn-related sepsis?
Pseudomonas aeruginosa.
35
What are the treatment options for burn wound infections?
Topical antimicrobials, systemic antibiotics, surgical debridement if necessary.
36
What are the indications for skin grafting in burns?
Full-thickness burns, deep partial-thickness burns, wounds not healing within 3 weeks.
37
What are common skin substitutes used in burn management?
Homografts, porcine xenografts, amniotic membranes, collagen derivatives.
38
What are the benefits of early wound excision?
Reduces infection risk, improves healing, and shortens hospital stay.
39
What are the complications of burns?
Hypovolemic shock, electrolyte imbalances, infections, renal failure, contractures, abnormal scarring.
40
What is the leading cause of death in burn patients?
Sepsis.
41
What is Marjolin’s ulcer?
A squamous cell carcinoma arising in chronic burn scars.
42
What are hypertrophic scars?
Thick, raised scars that develop due to excessive collagen deposition during healing.
43
What is the role of pressure garments in burn rehabilitation?
Prevents hypertrophic scarring and improves skin remodeling.
44
Why is physiotherapy important in burn patients?
Prevents contractures, maintains range of motion, and improves functional recovery.
45
What is the main goal of occupational therapy in burn patients?
To help patients regain daily functional abilities and adapt to limitations.
46
What is the treatment for pruritus in burn patients?
Moisturizers, antihistamines, and pressure garments.
47
What is the effect of burns on the gastrointestinal system?
Can cause adynamic ileus, gastric ulcers, and bacterial translocation.
48
What is the primary treatment for chemical burns?
Irrigation with copious amounts of water to remove the chemical agent.
49
Why are electrical burns particularly dangerous?
They can cause deep tissue damage and cardiac arrhythmias.
50
What is the primary concern in high-voltage electrical burns?
Cardiac arrhythmias and rhabdomyolysis.
51
What is the importance of ECG monitoring in electrical burns?
To detect arrhythmias caused by electrical injury.
52
What is the aim of diuresis in electrical burn patients?
To prevent renal damage due to myoglobinuria from muscle breakdown.
53
How can burn contractures be prevented?
Early physiotherapy, splinting, and surgical release if needed.
54
What are the three levels of burn prevention?
Primary (education), Secondary (first aid), Tertiary (specialized burn care).
55
What is the purpose of the Lund & Browder chart?
To provide a more accurate estimation of burn surface area, especially in children.
56
What are the most critical factors in burn management?
Early fluid resuscitation, infection control, wound care, and rehabilitation.