Nurse Patricia is aware that major health complication associated with intractable anorexia nervosa would be:

Correct Answer: A. Cardiac dysrhythmias resulting in cardiac arrest

These clients have severely depleted levels of sodium and potassium because of their starvation diet and energy expenditure, these electrolytes are necessary for cardiac functioning. Refeeding syndrome can occur following prolonged starvation. As the body utilizes glucose to produce molecules of adenosine triphosphate (ATP), it depletes the remaining stores of phosphorus. Also, glucose entry into cells is mediated by insulin and occurs rapidly following long periods without food. Both cause electrolyte abnormalities such as hypophosphatemia and hypokalemia, triggering cardiac and respiratory compromise. Patients should be followed carefully for signs of refeeding syndrome and electrolytes closely monitored.

• Option B: Anorexia nervosa is a psychiatric disease in which patients restrict their food intake relative to their energy requirements through eating less, exercising more, and/or purging food through laxatives and vomiting. Despite being severely underweight, they do not recognize it and have distorted body images. They can develop complications from being underweight and purging food.
• Option C: Patients will report symptoms such as amenorrhea, cold intolerance, constipation, extremity edema, fatigue, and irritability. They may describe restrictive behaviors related to food like calorie counting or portion control, and purging methods, for example, self-induced vomiting or use of diuretics or laxatives. Many exercise compulsively for extended periods of time. Patients with anorexia nervosa develop multiple complications related to prolonged starvation and purging behaviors.
• Option D: Remission in anorexia nervosa varies. Three-fourths of patients treated in out-patient settings remit within five years and the same percentage experience intermediate-good outcomes, including weight gain. Relapse is more common in patients who are older with a longer duration of disease or lower body fat/weight at the end of treatment, have comorbid psychiatric disorders, or receive therapy outside of a specialized clinic. Often, patients who achieve partial remission develop another form of eating disorder like bulimia nervosa or an unspecified eating disorder.