Drowning
Abida K. Haque
Drowning is a common cause of accidental deaths, particularly in children. The lungs are edematous in both fresh and saltwater drowning; however, “dry lungs,” or absence of edema, is well known in some cases of drowning. The hemodynamic changes and hypoxemia are the cause of death and are determined by the type of aspirated water. Because of the hyperosmolality, saltwater drowning results in exudation of fluid from the circulation into the alveolar spaces. Fresh water drowning, on the other hand, results in influx of the hypotonic fluid from the lungs into the circulation.