injuries poisoning
Burns
Symptoms and Signs of Burns
Wound symptoms and signs depend on burn depth: Superficial burns:These burns are red, blanch markedly and widely with light pressure, and are painful and tender. Vesicles or bullae do not develop. Superficial partial-thickness burns:These burns blanch with pressure and are painful and tender. Vesicles or bullae develop within 24 hours. The bases of vesicles and bullae are pink and subsequently develop a fibrinous exudate. Deep partial-thickness burns:These burns may be white, red, or mottled red and white. They do not blanch and are less painful and tender than more superficial burns. A pinprick is often interpreted as pressure rather than sharp. Vesicles or bullae may develop; these burns are usually dry. Full-thickness burns:These burns may be white and pliable, black and charred, brown and leathery, or bright red because of fixed hemoglobin in the subdermal region. Pale full-thickness burns may simulate normal skin except the skin does not blanch to pressure. Full-thickness burns are usually anesthetic or hypoesthetic. Hairs can be pulled easily from their follicles. Vesicles and bullae usually do not develop. Sometimes features that differentiate full thickness from deep partial thickness burns take 24 to 48 hours to develop. 