Burns is defined as a traumatic injury to the skin or other organic tissue primarily caused by thermal or other acute exposures. Burn occurs when some or all of the cells in the skin or other tissues are destroyed by heat, cold, electricity, radiation or causative chemicals.Major etiologies are thermal, chemical, electrical, radiation and inhalation.

1. PRESENTED BY
Mrs. SOUMYA SUBRAMANI, M.Sc.(N)
LECTURER, MSN DEPARTMENT
CON- SRIPMS, COIMBATORE.
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3. Burns is defined as a traumatic injury to
the skin or other organic tissue primarily
caused by thermal or other acute
exposures. Burn occurs when some or all of
the cells in the skin or other tissues are
destroyed by heat, cold, electricity,
radiation or causative chemicals.
-WHO DEFINITION
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4. ETIOLOGY OF BURNS
THERMAL CHEMICAL ELECTRICAL RADIATION INHALATION
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15.  ANATOMIC CHANGES
 PHYSIOLOGICAL CHANGE
 Protective function
 Excretory function
 Regulation of water and electrolyte imbalances
 Sensory function
 Synthesis function
 Temperature regulation
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16. Macrophages damages within the tissues
Release of chemical mediators
Constriction of blood vessels
Blood vessels thrombosis
Necrosis
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17. FLUID SHIFT
After initial vasoconstriction blood vessel near the burns dilate
Fluid leak into the interstitial space (THIRD SPACING OR CAPILLARY LEAK SYNDROME)
Decreases the blood volume and BP Extensive edema Electrolyte imbalances
Hypovolemia Vascular dehydration - hyperkalaemia
Hemoconcentration -hyponatremia
Increasing blood viscosity
Reduced small vessel blood flowMrs. Soumya.M 17

18. FLUID REMOBILIZATION
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19. Initial fluid shift and hypovolemia causes decreased CO until 36
hours, increases with fluid resuscitation
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21. GASTEROINTESTINAL CHANGES
 Decreased gastric perfusion Impaired
gastric mucosal integrity and motility
 Sympathetic nervous system stress response
increases secretion of epinephrine and
norepinephrine inhibit GI motility
Decreased peristalsis PARALYTIC
ILEUS &CURLING’S ULCER
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22. RENAL ALTERATION
 Myoglobin and destructed RBCs are
excreted by kidneys
 Inadequate blood supply causes occlusion
of renal tubules resulting in acute tubular
necrosis and & RF
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31. FOURTH DEGREE BURN
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32. RULE OF NINE
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48. WOUND CLEANSING
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