Eating Disorders

Eating Disorders

Overview of Eating Disorders

  • Eating provides nourishment for both the body and soul, but for some individuals, it becomes a source of distress.

  • Eating disorders are characterized by disruptions in normal eating patterns.

  • Presenting issues:

    • Significantly disturbed perceptions of body shape or size.

    • Intense fear of weight gain.

Objectives of Discussion

  • Differentiate between the signs and symptoms of anorexia nervosa and bulimia nervosa.

  • Identify priority assessments for individuals with an eating disorder to facilitate safe and effective care.

Anorexia Nervosa

  • Definition: A life-threatening eating disorder characterized by refusal or inability to maintain a minimal normal body weight.

  • Key Features:

    • Intense fear of gaining weight or becoming fat despite being underweight.

    • Disturbance in body image.

    • Denial of the seriousness of the disorder.

  • Body Weight: Typically 85% less than expected for age and height.

  • Menstrual Irregularity: Amenorrhea for at least three consecutive cycles.

  • Preoccupation with Food:

    • Extreme focus on food-related activities (grocery shopping, counting calories).

    • Engagement in unusual food behaviors (cutting food into small pieces, avoiding eating around others).

  • Types of Anorexia:

    1. Restricting Type: Weight loss through drastic food restriction or excessive exercise without binge eating/purging.

    2. Binge-Eating/Purging Type:

    • Engages in binge eating (consuming large amounts of food in a short time, typically two hours) and purging (self-induced vomiting, misuse of laxatives, enemas, diuretics).

    • Some individuals do not binge but engage in purging alone.

Symptoms of Anorexia Nervosa
  • Emotional Symptoms:

    • Profound fear of gaining weight.

    • Distorted body image.

    • Facts contributing to depression and anxiety.

    • Feeling of ineffectiveness.

  • Physical Symptoms:

    • Constipation, abdominal pain, cold intolerance, lethargy, emaciation.

    • Vital Signs:

    • Hypotension, hypothermia, bradycardia.

  • Additional Indicators:

    • Electrolyte imbalances, leukopenia, mild anemia, elevated liver function tests.

    • Lanugo (fine body hair) or dry and cracking skin.

Bulimia Nervosa

  • Definition: An eating disorder characterized by recurrent episodes (at least twice a week for three months) of binge eating followed by inappropriate compensatory behaviors to prevent weight gain.

  • Characteristics of Bulimia:

    • Engages in binge-eating episodes, followed by purging behaviors such as vomiting, fasting, or excessive exercise.

    • Binge-eating episodes are often triggered by strong emotions, leading to guilt, remorse, or shame.

  • Physical Indicators:

    • Weight often remains in the normal range despite the disorder.

    • Damage to dental enamel due to vomiting, leading to dental caries and chipped teeth.

    • Dentists often identify bulimia early due to these physical signs.

Symptoms of Bulimia Nervosa
  • Emotional Symptoms:

    • Self-evaluations excessively influenced by body shape and weight.

    • Symptoms of depression and anxiety.

    • Possible use of substances, including alcohol or stimulants.

  • Physical Symptoms:

    • Loss of dental enamel, increased dental caries, menstrual irregularities, and dependence on laxatives.

    • Presence of esophageal tears and fluid/electrolyte imbalances.

    • Mildly elevated amylase levels.

Risk Factors for Eating Disorders

  • Genetic Factors: Higher prevalence in families with a history of eating disorders (especially females).

  • Biological Factors: Possible disturbances in serotonin and norepinephrine.

  • Environmental Factors:

    • Societal pressure to maintain an ideal body image.

    • Participation in athletics, particularly at a competitive level.

  • Interpersonal Relationships: Pressure from peers and family, emotional support systems play a significant role.

  • Psychological Factors: Anxiety, perfectionism, rigidity, and low self-esteem prevalent in individuals with anorexia nervosa.

  • Developmental Risk Factors: Struggles with developing autonomy and control over one's environment.

Nursing Process and Assessment

  • Challenges in Treatment: Patients often resist treatment and deny their eating disorder.

  • Physical Assessment (start on page 199):

    • Monitor vital signs: hypotension, bradycardia, hypothermia.

    • Inspect head, neck, mouth, and throat for dental erosion or decay.

    • Cardiac assessment may reveal dysrhythmias.

    • Skin, hair, and nails may appear poor in condition and quality.

Mental Status Exam
  • Identify cognitive distortions such as:

    • Overgeneralization: e.g., "Other girls don’t like me because I’m fat."

    • All-or-Nothing Thinking: e.g., "If I eat dessert, I'll gain 50 pounds."

    • Catastrophizing: e.g., "My life is over if I gain weight."

    • Personalization: e.g., "Everyone is looking at me in the hospital hallway."

    • Emotional reasoning: e.g., "I feel bloated, so I must look bad."

Important Nursing Diagnoses
  • Disturbed body image.

  • Decreased cardiac output.

  • Ineffective coping mechanisms.

  • Hopelessness.

  • Risk of injury.

  • Imbalanced nutrition.

  • Low self-esteem.

Interventions
  • Nutritional Management:

    • Establish nutritional eating patterns, emphasizing the importance of adequate nutrition as a top priority.

    • Contract with patient for a gradual approach to caloric intake over six months.

    • Teach balanced diet principles.

    • Supervise meals and monitoring for one to two hours post-eating.

    • Discourage food rituals and promote eating with others.

    • Monitor for attempts to hide or discard food.

  • Psychological Support:

    • Help the client identify and express emotions.

    • Develop non-food-related coping strategies such as journaling.

    • Encourage participation in non-judgmental therapeutic relationships.

    • Support clients in recognizing the benefits of achieving a near-normal weight.

    • Assist clients in identifying strengths unrelated to body image.