A client reports being unhappy with their body weight. On assessment, the nurse notes tooth decay, an inflamed throat, gastroesophageal reflux disorder, and dehydration. The nurse knows these findings are consistent with which disorder?

The clinical findings described — tooth decay, an inflamed throat, gastroesophageal reflux disorder, and dehydration combined with body weight dissatisfaction — are classic signs of bulimia nervosa. These manifestations result from repeated self-induced vomiting, a hallmark compensatory behavior of the disorder. Gastric acid exposure during purging erodes tooth enamel, causing decay; irritates the esophagus and pharynx, causing inflammation; and triggers acid reflux. Repeated fluid loss through vomiting leads to dehydration and electrolyte imbalances, particularly hypokalemia and hyponatremia. Binge-eating disorder involves recurrent overeating without compensatory behaviors, so the purging-related physical signs would not be present. Anorexia nervosa is characterized by severe food restriction and low body weight; while some clients with anorexia do purge, the constellation of signs here more specifically points to the binge-purge cycle of bulimia. Night eating syndrome involves consuming a large portion of daily calories in the evening or at night and is not typically associated with purging behaviors. Recognizing the physical consequences of chronic purging is essential for early identification and intervention in clients with bulimia nervosa.