Comprehensive Study Notes: Bipolar Disorder and Mood Stabilization

Defining Bipolar Disorder and Its Etiology

• Definition: Bipolar disorder is a mood disorder characterized by shifts in a person’s mood, energy, thinking, sleep, and behavior. These shifts occur between high episodes and low episodes.
• Mood Categorization:     * High Mood: Referred to as mania or hypomania.     * Low Mood: Referred to as depression.
• The ‘Roller Coaster’ Metaphor:     * Mania: Described as being ‘too high, too fast, and too energized.’     * Depression: Described as being ‘too low, slowed down, and hopeless.’
• Biological and Environmental Factors:     * Brain chemistry and genetics.     * Stress and sleep disruption.     * Substance use.     * Neurotransmitters Involved: Serotonin, norepinephrine, and dopamine.
• Impact: According to the NIMH, symptoms can interfere with work, school, relationships, and daily life. Some clients may also experience psychosis.

Types of Bipolar Disorders

• Bipolar I Disorder:     * Considered the more severe form.     * Criteria: The client must have at least one manic episode.     * Characteristics: Mania is the key feature; depression may also occur. It is described as having ‘higher highs and lower lows’ and is more incapacitating.     * Risks: Mania can lead to unsafe behavior, hospitalization, delusions, or hallucinations.
• Bipolar II Disorder:     * Criteria: Includes major depression plus hypomania (not full mania).     * Characteristics: Hypomania is a ‘milder mania.’     * Presentation: Increased energy, decreased need for sleep, and fast talking. These symptoms are generally not as dangerous or severe as full mania.     * Pattern: May involve less mania but more profound depression.
• Cyclothymic Disorder:     * Criteria: A long-term pattern of mood swings between mild depressive and hypomanic symptoms.     * Duration: Shifts must last at least $2\,\text{years}$.     * Distinction: Symptoms are not severe enough to meet the formal criteria for Bipolar I or Bipolar II.

Clinical Manifestations of Mania and Hypomania

• Mania Definition: An abnormally elevated, expansive, or irritable mood accompanied by increased energy and poor judgment.
• Signs of Mania:     * Very little sleep while remaining full of energy.     * Talking very fast and having racing thoughts.     * Grandiose Thinking: For example, ‘I am special’ or ‘I can do anything.’     * Impulsive Behaviors: Overspending, overeating, or hypersexual behavior.     * Safety Risks: Risky behaviors, irritability, anger, poor concentration, and being easily distracted.     * Psychotic Features: Possible delusions or hallucinations in severe cases.
• Hypomania Definition: A less severe form of mania.     * Presentation: Client appears very energetic, productive, outgoing, and talkative.     * Distinction: Not usually psychotic; typically does not require hospitalization; less dangerous than full mania.

Clinical Manifestations of Bipolar Depression

• Symptoms:     * Sadness and hopelessness.     * Low energy and loss of interest.     * Sleeping too much or too little.     * Poor concentration and appetite changes.     * Feelings of guilt or worthlessness.     * Social withdrawal.     * Thoughts of suicide.

Specialized Mood Episode Features

• Mixed Features: Occurs when a client experiences symptoms of mania and depression simultaneously. An example is feeling hopeless while possessing high energy and racing thoughts. This is highly dangerous as the individual may have the energy to act on suicidal ideation.
• Rapid Cycling: Defined as the occurrence of $4$ or more mood episodes (mania, hypomania, or depression) within a single year.

Nursing Care and Safety Priorities for Mania

• Primary Nursing Priorities: Safety, food, sleep, hydration, and structure.
• Safety Interventions:     * Reduce stimulation: Calm environment, avoiding loud noises, bright lights, crowds, and arguing.     * Remove dangerous objects: Sharps or items usable for impulsive harm.     * Monitor medication and laboratory results.
• Setting Limits: Use simple, firm statements. Example: ‘John, it is not okay to yell. You may walk with me or sit in the quiet room.’
• Promoting Nutrition (Finger Foods): Because manic clients may be too busy pacing to sit, provide high-calorie, high-protein finger foods:     * Sandwiches and Peanut butter crackers.     * Cheese sticks and Nuts.     * Milk and Milkshakes.     * Protein bars and Fruit cups.
• Promoting Sleep: Decrease nighttime stimulation; encourage a dark, quiet room.
• Handling Delusions: Do not argue. Use reality-based, calm responses. Example: ‘I understand you feel powerful right now. I do not see evidence that you are the president, but I will help keep you safe.’

Nursing Care for Bipolar Depression

• Assess Suicide Risk: This must be done for all bipolar depression and mixed episodes.
• Suicide Intervention: Ask directly about suicidal thoughts and plans; remove harmful items; monitor the client closely.
• Support: Encourage treatment adherence and provide hope.

Treatment Interventions

• Medications: Mood stabilizers, antipsychotics, and anticonvulsants.
• Psychotherapy: Cognitive Behavioral Therapy (CBT) and Acceptance and Commitment Therapy (ACT).
• Medical Procedures: Electroconvulsive Therapy (ECT) for severe cases.
• Lifestyle Management: Sleep routines, stress management, and avoiding alcohol or substances.
• NIMH Treatment Note: Bipolar depression is often treated with a mood stabilizer or atypical antipsychotic. Antidepressants are usually not used alone as they can trigger mania or rapid cycling.

Lithium Pharmacology: High-Yield NCLEX Data

• Classification: Mood stabilizer used primarily for bipolar mania.
• Therapeutic Index: Narrow therapeutic range.     * Therapeutic Level: $0.6-1.2\,mEq/L$.     * Toxic Level: Above $1.5\,mEq/L$.
• Expected Side Effects:     * Fine hand tremors.     * Gastrointestinal (GI) upset.     * Weight gain.     * Increased thirst and urination (polyuria).     * Fatigue, kidney problems, hypothyroidism, and electrolyte imbalances.
• Signs of Lithium Toxicity:     * Coarse tremors.     * Confusion and slurred speech.     * Severe diarrhea and vomiting.     * Drowsiness and muscle weakness.     * Hypotension, seizures, and tinnitus.
• Laboratory Monitoring: Lithium levels, Sodium, BUN, Creatinine, Thyroid levels, and Electrolytes.
• Patient Teaching:     * Keep sodium intake consistent (low sodium increases lithium levels and toxicity risk).     * Drink adequate fluids; avoid dehydration.     * Report vomiting, diarrhea, fever, or excessive sweating.     * Avoid NSAIDs and Diuretics unless specifically prescribed.     * Never stop lithium suddenly.

Other Mood Stabilizing Medications

• Carbamazepine:     * Used as an anticonvulsant mood stabilizer.     * Monitoring: Blood dyscrasias (low WBCs, low platelets, anemia), rash, and vision problems.     * Critical Lab: Complete Blood Count (CBC).
• Valproic Acid:     * Used for mood stabilization.     * Monitoring: Liver toxicity, GI upset, weight gain, and thrombocytopenia.     * Critical Labs: Liver Function Tests (AST, ALT, bilirubin), CBC, and Platelet count.
• Lamotrigine:     * Used for bipolar depression maintenance.     * Warning: Can cause a serious rash identifying Stevens-Johnson syndrome.     * NCLEX Action: Report any rash immediately.

Therapeutic Communication Guidelines

• Technique: Use short, calm, clear communication.
• Helpful Phrases:     * ‘I am here to help keep you safe.’     * ‘Let’s walk together.’     * ‘You may choose to eat now or in $10\,minutes$.’     * ‘I cannot allow you to hit others.’     * ‘Let’s go to a quieter area.’
• Behaviors to Avoid: Arguing, long explanations, sarcasm, power struggles, offering too many choices, and touching without permission.

Essential Memory Tricks

• MANIA Acronym:     * More energy     * Acting risky     * No sleep     * Irritable/impulsive     * Accelerated speech
• LITHIUM Toxicity Acronym:     * Low sodium increases toxicity     * Intake fluids     * Tremors: coarse = danger     * Hold medication if toxic     * Inform provider     * Urination/thirst common     * Monitor levels, kidneys, thyroid

NCLEX-Style Questions and Rationales

• Q1: A client with bipolar disorder is pacing, speaking rapidly, and has not slept for $2\,days$. What is the nurse’s priority intervention? (Answer: B — Provide a quiet environment with decreased stimulation. Rationale: Mania requires decreased stimulation and safety first.)
• Q2: Which food is best for a client experiencing acute mania? (Answer: C — Peanut butter sandwich. Rationale: Finger foods are best because manic clients may pace and not sit for meals.)
• Q3: A client taking lithium has a level of $1.8\,mEq/L$. What should the nurse do first? (Answer: C — Hold the medication and notify the provider. Rationale: $1.8\,mEq/L$ is toxic.)
• Q4: Which statement by a client taking lithium requires more teaching? (Answer: D — ‘I should avoid all salt so my medication works better.’ Rationale: Low sodium can increase lithium levels and cause toxicity.)
• Q5: Which finding is most concerning for lithium toxicity? (Answer: C — Coarse tremor and confusion. Rationale: Coarse tremor and confusion are classic signs of toxicity; fine tremors are expected side effects.)
• Q6: A client with bipolar disorder says, ‘I am the richest person alive and I’m buying $10\,cars$ today.’ What symptom is this? (Answer: B — Grandiosity. Rationale: Grandiosity means exaggerated self-importance.)
• Q7: Which statement best describes Bipolar I disorder? (Answer: B — At least one manic episode.)
• Q8: Which statement best describes Bipolar II disorder? (Answer: A — Major depression with hypomania.)
• Q9: A client with mania is intrusive and touching other clients’ belongings. What is the best nursing response? (Answer: C — ‘You may not touch others’ belongings. Come walk with me.’ Rationale: Set limits calmly and redirect the client.)
• Q10: Which lab should the nurse monitor for a client taking valproic acid? (Answer: A — Liver function tests. Rationale: Valproic acid can affect the liver.)
• Q11: Which lab should the nurse monitor for a client taking carbamazepine? (Answer: A — CBC. Rationale: Carbamazepine can cause blood dyscrasias.)
• Q12: A client taking lamotrigine reports a new rash. What should the nurse do? (Answer: C — Notify the provider immediately. Rationale: This can signal Stevens-Johnson syndrome.)
• Q13: Which client is at highest safety risk? (Answer: B — Client with mania who has not slept and is making risky plans.)
• Q14: Which medication class is commonly used as a mood stabilizer for bipolar disorder? (Answer: B — Anticonvulsants.)
• Q15: A client with bipolar depression says, ‘Everyone would be better off without me.’ What is the nurse’s priority response? (Answer: B — ‘Do you have a plan to hurt yourself?’ Rationale: Always assess suicide risk directly.)
• Q16: Which intervention is appropriate for a manic client who refuses to sit for meals? (Answer: B — Provide high-calorie finger foods.)
• Q17: Which medication interaction can increase lithium toxicity risk? (Answer: A — NSAIDs.)
• Q18: A client with bipolar disorder has symptoms of depression and racing thoughts at the same time. What is this called? (Answer: B — Mixed features.)
• Q19: Which teaching is best for a client with bipolar disorder? (Answer: B — ‘Sleep routines and medication adherence help prevent relapse.’)
• Q20: What is the best nursing approach during acute mania? (Answer: A — Calm, firm, simple, structured.)