Introduction

Figure 20.1 Neuroimaging can be an important part of a psychological diagnosis. (credit: “National Nurses Week: Capt. Stephanie Smiddy” by Staff Sgt. Shane Hughes/Air Force Medical Service, Public Domain)

Chapter Outline

20.1 Psychological, Social, and Physiological Factors

20.2 Anorexia Nervosa

20.3 Avoidant/Restrictive Food Intake Disorder

20.4 Bulimia Nervosa

20.5 Binge-Eating Disorder

20.6 Pica

20.7 Rumination Disorder

Eating disorders are a growing concern in nursing because they affect millions of people. It is estimated that approximately 5 percent of the United States population experiences eating disorders with the highest prevalence seen in women ages twelve to thirty-five (American Psychiatric Association [APA], 2023a), though these conditions affect all genders. Eating disorders have high morbidity and mortality rates and are considered serious mental health illnesses (Davis & Attia, 2019). Clients with eating disorders may seek health-care services that require nurses to play an essential role. The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision (DSM-5-TR) lists the following under the category of feeding and eating disorders: anorexia nervosa (AN), bulimia nervosa (BN), binge eating disorder (BED), avoidant/restrictive food intake disorder (ARFID), pica, and rumination (APA, 2023b).