Study Notes on Anorexia Nervosa and Related Mental Health Topics

Anorexia Nervosa

  • Definition: Anorexia nervosa is a type of eating disorder characterized by an intense fear of gaining weight and a distorted body image leading to self-starvation and excessive weight loss.

1. Causes of Anorexia Nervosa

  • Factors Involved:
    • Biological Factors:
      • Changes in hormones.
      • Dysregulation of neurotransmitters.
    • Psychological Factors:
      • Body dysmorphia.
      • Impaired body image.
      • Psychological need for control.
      • Coexisting mental illnesses (e.g., OCD).
    • Social Factors:
      • Influence of social media, television, and magazines on body image.

2. Types of Anorexia Nervosa

  • Restrictive Type:
    • Characterized by extreme fasting, dieting, excessive exercise.
    • Hyperfocus on limited food intake and high calorie burning.
  • Binge Eating and Purging Type:
    • Involves consuming large portions of food followed by self-induced vomiting or misuse of diuretics, laxatives, or enemas to prevent weight gain.

3. Demographics

  • Most commonly observed in adolescents and young adults but can occur in any age group.
  • Vulnerable populations include young individuals impacted strongly by peer opinions regarding body image.

4. Severity Spectrum of Anorexia Nervosa

  • Cases range from mild to severe, with severe cases leading to life-threatening complications.
  • Life-Threatening Complications:
    • Electrolyte imbalances.
    • Risk of cardiac arrhythmias.

5. Clinical Features

  • A. Physical Features:

    • Decreased Caloric Intake Effects:
      • Fatigue, confusion, fainting due to decreased glucose supply to the brain.
      • Very low BMI and potential hypothermia or cold intolerance from low body fat.
      • Bradycardia leading to hypotension.
      • Decreased digestive processes causing constipation.
      • Physical emaciation.
      • Musculoskeletal impact (brittle bones, stress fractures, osteoporosis).
      • Skin conditions including alopecia, dry skin, and lanugo in severe cases.
      • Reproductive impacts such as amenorrhea in women due to malnourishment.

  • B. Psychological Features:

    • Low self-esteem, heightened body dysmorphia.
    • Rigid food-related rituals (e.g., obsessive calorie counting).
    • Manipulative behaviors and social withdrawal (self-isolation).

6. Diagnostic Criteria

  • Key Diagnosis: Low BMI is crucial; a severe case is classified as less than 70% of expected body weight requiring hospitalization.

7. Refeeding Syndrome

  • Reintroduction of caloric intake must be done cautiously to avoid
    • Electrolyte imbalances.
    • Potential hemodynamic instability due to low blood volume.

8. Indicators for Hospitalization

  • Refusal to eat, suicidal thoughts, or psychosis.

9. Management Approaches

  • Caloric Intake Reintroduction: Essential to start nutritional rehabilitation.
  • Monitor for Suicidal Thoughts: Assess for self-harm, and record emotional states during meals.
  • Heart Monitoring: Check for arrhythmias due to electrolyte issues.
  • IV Fluids Administration: To stabilize blood pressure and enhance body perfusion.
  • Feeding Alternatives: NG tube or parenteral nutrition may be necessary for clients refusing food.
  • Cognitive Behavioral Therapy (CBT): Helps remediate negative thoughts regarding body image and food.
  • Monitoring Weight and Caloric Intake: Emphasis on gradual, healthy weight gain and adequate recovery nutrition.
  • Emotional Support: Engage therapy such as journaling to express feelings towards body image.
  • Encouragement of Social Interactions: Help clients reduce isolation by eating with others.

10. Ethical Treatment Considerations

  • Priority on shifting client mindset towards healthier body image and self-esteem enhancement.

Pathophysiology of Elder Mistreatment

  • Definition: Elder mistreatment (abuse) occurs when caregivers intentionally harm or neglect frail elderly individuals.

1. Nature of Elder Mistreatment

  • Often underreported due to fear, embarrassment, or reluctance to implicate family members.
  • Most common perpetrators are family, rather than professional caregivers in facilities.

2. Risk Factors for Mistreatment

  • Abuser Factors:
    • Dependency for housing or finances, history of violence, unemployment, and mental health or substance issues.
  • Client Factors:
    • Inability to perform daily activities, lack of social support, history of alcohol abuse.

3. Signs of Elder Abuse

  • Physical Signs: Unexplained injuries, atypical abrasions, and poor hygiene.
  • Behavioral Signs: Withdrawal from social relationships, depression, and fear-oriented actions.
  • Bedsores: From lack of repositioning.

4. Nursing Interventions

  • Always screen for suicide and assess for safety.
  • Report suspected abuse to appropriate authorities like adult protective services.
  • Document findings and client statements for potential legal evidence.

Suicide

  • Definition: The act of intentionally ending one’s life.

1. Risk Factors for Suicide

  • Previous suicide attempts.
  • Genetic predisposition.
  • Mental health disorders: major depressive disorder, substance use, psychosis.
  • Life stressors: loss, financial struggle, or significant change.
  • Physical illness: chronic pain, terminal conditions leading to hopeless feelings.

2. Protective Factors Against Suicide

  • Social support systems, pregnancy, parenthood, spirituality, contact with mental health services.

3. Clinical Features of Risk

  • Sudden mood improvements post-antidepressant initiation (potentially dangerous).
  • Expressions of suicidal thoughts or plans must be assessed urgently.
  • Identifying the lethality of an individual's plan is crucial.

4. Nursing Interventions

  • Use empathetic communication to establish trust.
  • Directly ask about suicidal thoughts to encourage expression.
  • Explore patient stressors and coping strategies.
  • Inpatient safety protocols include one-on-one observation and clearing harmful objects from the environment.

Schizophrenia

  • Definition: A psychiatric disorder characterized by distorted perception and interaction with reality.

1. Causes

  • Likely multifactorial: genetic, environmental influences, and neurotransmitter imbalances (especially dopamine).

2. Clinical Manifestations

  • Positive Symptoms: Hallucinations, delusions, disorganized speech/behavior.
  • Negative Symptoms: Apathy, lack of emotional expression, social withdrawal.

3. Hallucinations vs. Delusions

  • Hallucinations: False perceptions via senses (e.g., hearing voices).
  • Delusions: False beliefs causing a mismatch with reality (e.g., paranoia).

4. Treatment Approaches

  • First-generation antipsychotics and second-generation antipsychotics indicated for managing positive symptoms.
  • Nursing interventions focus on building trust, preventing overstimulation, and providing reality orientation.

Attention Deficit Hyperactivity Disorder (ADHD)

  • Definition: A neurodevelopmental disorder caused by imbalances in norepinephrine and dopamine, affecting attention and activity.

1. Criteria and Symptoms

  • Symptoms must persist for at least six months and appear across multiple environments (home, school).
  • Symptoms include inconsistent attention, impulsivity, hyperactivity, and disorganization.

2. Management Approaches

  • Behavioral therapy as a first-line intervention, enhancing task completion.
  • Pharmacological treatment: stimulants or SNRIs are common; education on handling ADHD in daily scenarios is vital.

Anger and Aggression

  • Anger: A normal response to frustration or threat signaling potential harm.
  • Aggression: The act of harming others or property stemming from anger.

1. Warning Signs of Aggression

  • High levels of arousal, hyperactivity, hostility, and defensiveness.

2. Nursing Interventions

  • Assess risk levels, apply de-escalation techniques, and establish safety protocols.

Major Depressive Disorder

  • Definition: A mood disorder defined by a depressed mood lasting over two weeks, compromising daily functioning.

1. Risk Factors

  • Life stressors, genetic predisposition, substance use, chronic illness, and unresolved grief.

2. Clinical Features

  • Symptoms include sleep disturbances, decreased motivation, appetite changes, guilt, inability to concentrate, and suicidal ideation.

3. Management and Treatment

  • Use SSRIs or SNRIs effectively while monitoring risks, safety, and the potential for adverse drug affects. Therapy options like cognitive-behavioral therapy are essential to recovery.