injuries poisoning
Burns
Etiology of Burns
 may result from any external heat source (flame, hot liquids, hot solid objects, or occasionally, steam). Fires may also result in toxic Smoke Inhalation (see also Assess the airway and consider early intubation if patients have respiratory symptoms, carbonaceous sputum, perioral burns, singed nasal hairs, or were confined in a burning environment. Evaluation of the posterior pharynx is helpful in assessing airway injury. If there is no evidence of posterior pharyngeal edema or erythema, airway compromise is unlikely. most commonly result from prolonged exposure to solar ultraviolet radiation ( Sunburn ) but may result from prolonged or intense exposure to other sources of ultraviolet radiation (eg, tanning beds) or from exposure to sources of x-ray or other nonsolar radiation (see Chemical burnsmay result from strong acids, strong alkalis (eg, lye, cement), phenols, cresols, mustard gas, phosphorus, and certain petroleum products (eg, gasoline, paint thinner). Skin and deeper tissue necrosis caused by these agents may progress over several hours. Electrical Injuries None Events associated with a burn (eg, jumping from a burning building, being struck by debris, motor vehicle crash) may cause other injuries. Abuse should be considered in young children and older patients with burns (see Overview of Child Maltreatment and 