LPN Psychiatric Nursing Study Guide
Brain Structure & Function
Cerebrum
Major role in sensory perception, voluntary movement, personality, and intelligence.
Divided into left and right hemispheres, each responsible for different functions.
The left hemisphere typically handles language and analytical tasks while the right hemisphere is associated with creativity and spatial abilities.
Pons
Connects various parts of the brain, acting as a bridge between the cerebrum and cerebellum while regulating vital functions such as breathing, heart rate, and sleep cycles.
Plays a critical role in the control of respiration and facial expressions.
Involved in the transmission of sensory information and the modulation of sleep and arousal.
Brain Stem
Controls vital functions, including heart rate and breathing, and regulates the sleep-wake cycle.
Composed of the midbrain, pons, and medulla oblongata which coordinate reflexes and involuntary actions.
Essential for maintaining homeostasis within the body.
Limbic System
Involved in regulating emotions and memory, integrating emotional experience with cognition.
Key structures include the amygdala, hippocampus, and hypothalamus that play a role in emotional response and memory formation.
Influences behaviors related to survival and emotional aspects of experience.
Functions of Brain Structures:
Sensory Perception: Mediated primarily by the cerebrum, allowing for interpretation of sensory information from the environment and formulating responses.
Voluntary Movement: Controlled by various cortical areas in the cerebrum, particularly the motor cortex, which sends signals to muscles enabling deliberate actions.
Personality and Intelligence: Primarily functions of the cerebrum involving cognitive processes, emotional regulation, and social interactions.
Vital Functions: Regulated by the brain stem and pons, ensuring automatic functions necessary for sustaining life.
Emotions: Controlled by the limbic system, which also affects how we process memories related to emotional experiences.
Anxiety & Panic Disorders
Panic Attack Nursing Priorities
Hyperventilation: Recognize symptoms such as rapid breathing and provide techniques to manage this, including controlled breathing exercises.
Feeling Out of Control: Support the client through therapeutic communication, affirming their feelings and providing reassurance.
Palpitations: Must assess and monitor vital signs; document the frequency and nature of palpitations to guide further intervention.
Review:
Therapeutic Communication Techniques: Essential in managing clients with acute anxiety; strategies include active listening, empathetic responses, and validation of feelings.
Client Supervision: Determine when to stay with a client during panic to provide continuous support and immediate interventions.
Nursing Responses: Differentiate between appropriate (reassuring presence, calm demeanor) and inappropriate responses (distraction or dismissiveness).
Eating Disorders
Anorexia Nervosa
Physical Assessment Findings: Identify critical conditions needing immediate follow-up such as severe electrolyte imbalance or cardiovascular instability due to malnutrition.
BMI Classifications: Recognize underweight status, defined as a BMI less than 18.5, and its implications on health.
Medical Complications: Understand potential complications such as cardiac dysrhythmias or organ failure due to starvation and nutritional deficiencies.
Distorted Body Image Statements: Assess the client for misperceptions of body image, using psychometric tools to gauge severity.
Bulimia Nervosa
Body Weight Presentation: Understand that individuals may maintain a normal or above-average weight, complicating diagnosis and perception.
Binge/Purge Behaviors: Must identify patterns of binge eating followed by behaviors to prevent weight gain, such as self-induced vomiting or excessive exercise.
Dental Findings: Recognize effects of vomiting on dental health, including enamel erosion and gum disease leading to long-term oral health issues.
Lab Abnormalities: Monitor potassium levels, which can indicate complications like cardiac instability resulting from purging behaviors.
Differences Between Anorexia and Bulimia: Compare and contrast the presentations of the two disorders, emphasizing diagnostic criteria and treatment approaches.
Bipolar Disorder
Lithium Therapy
Therapeutic Serum Levels: Optimal range is 0.6-1.2 mEq/L; levels above this may indicate toxicity while levels below may not provide therapeutic effects.
Signs of Toxicity: Symptoms include nausea, tremors, and confusion; serious cases may result in seizures or loss of consciousness.
Signs of Subtherapeutic Levels: May include return or exacerbation of mania symptoms, necessitating adjustments in medication or dosages.
Symptoms of Mania: Characterized by increased energy, decreased need for sleep, inflated self-esteem, and engagement in high-risk behaviors.
Mood Disorders
Differentiation of Disorders
Bipolar Disorder: Characterized by mood swings from manic to depressive episodes, impacting daily functioning and relationships.
Unipolar Depression: Persistent sadness, anhedonia, and lack of interest in activities without manic episodes present.
Dysthymic Disorder: Chronic form of depression lasting at least two years, with milder symptoms that can still significantly impair daily life.
Hypomania: Less severe form of mania, typically shorter in duration and does not cause severe impairment.
Hallmark Behaviors
Recognize the distinguishing behaviors of each mood disorder, identifying specific symptoms that may aid in diagnosis.
Depression
Common Symptoms
Mood Changes: Frequent lows in mood state, encompassing feelings of sadness, irritability, or hopelessness.
Sleep Disturbances: Insomnia (difficulty sleeping) or hypersomnia (excessive sleeping), impacting overall health and functioning.
Appetite Changes: Significant weight loss or gain due to inconsistent eating patterns influenced by emotional state.
Cognitive Symptoms: Difficulties with concentration, decision-making, and sometimes memory, reflecting cognitive impairment.
Physical Symptoms: Include fatigue, chronic pain, and various somatic complaints that may not have a medical basis.
Suicide Risk Assessment
Risk Factors: Age, previous attempts, mental health history, substance abuse, and traumatic life events.
Warning Signs: Changes in mood, increased withdrawal from social circles, or expression of hopelessness; be vigilant for subtle indicators.
Priority Nursing Actions: Identify safety interventions, including 1:1 observation when necessary to ensure the safety of the client.
Direct Assessment for Suicide Plan: Engage in conversation about specific plans or means, using open-ended questions to facilitate dialogue.
Review:
Sudden Mood Improvement: Understand this could indicate a decision to act on suicidal ideation or a temporary phase prior to a crisis.
History of Attempts: Crucial for assessing risk and formulating appropriate interventions based on individual history.
Access to Means: Note if the patient has access to methods of suicide, incorporating safety planning as a priority intervention.
SSRIs & Antidepressants
Example Medication: Fluoxetine
Common Side Effects: Nausea, insomnia, sexual dysfunction, which can affect adherence to the medication regimen.
Reasons for Nonadherence: Include side effects, delayed therapeutic effects, and lack of support or understanding of the treatment process.
Time to Therapeutic Effect: Typically 4-6 weeks to notice benefits, which may necessitate ongoing patient education and encouragement.
Drug Interactions: Review critically important interactions with other medications, ensuring comprehensive medication management.
Serotonin Syndrome
Symptoms Include:
Fever: Can be an early sign of serotonin syndrome, indicating potential for a medical emergency.
Mental Status Changes: Confusion or agitation, often necessitating immediate intervention.
Neuromuscular Abnormalities: Tremors, muscle rigidity, and hyper-reflexia; prompting immediate medical attention.
Autonomic Instability: Labile blood pressure, tachycardia; may require close monitoring and intervention.
Risks with Herbal Supplements
Awareness of potential interactions when combined with medications, especially those affecting serotonin levels, such as St. John's Wort.
Electroconvulsive Therapy (ECT)
Key Knowledge Areas:
Indications: Severe depression unresponsive to medication; also considered in severe mania or catatonia cases.
Pre-procedure Nursing Care: Include informed consent, comprehensive assessment, and educational support for patient and family about the procedure and recovery process.
Post-procedure Monitoring: Monitor vital signs, mental status, and recovery assessment; be alert for signs of confusion or disorientation post-treatment.
Common Temporary Side Effects: Confusion and memory loss immediately post-treatment; provide reassurance and supportive care during recovery.
Priority Risks: Understand complications, including cardiovascular effects such as arrhythmias.
Communication Strategies
Family Fears: Use therapeutic communication to address concerns, clarifying the process and outcomes associated with ECT.
Substance Use & Withdrawal
Alcohol Withdrawal
Vital Sign Changes: Observe for increases in heart rate and blood pressure, which can indicate escalating withdrawal severity.
Early vs. Late Withdrawal Symptoms: Differentiate between mild tremors (early) and severe symptoms like delirium tremens (late); monitor closely for changes.
Risk for Seizures: High-risk population during withdrawal phases; implement seizure precautions as necessary.
Priority Medications: Include benzodiazepines for seizure prophylaxis, titrating doses based on symptom severity.
Psychosis & Schizophrenia
Differentiation of Symptoms:
Hallucinations: False sensory perceptions that can affect any of the senses; important for differential diagnosis.
Delusions: Fixed false beliefs contrary to reality, including paranoia and grandiose delusions; require careful documentation.
Illusions: Misinterpretation of real external stimuli, often associated with underlying stress or anxiety.
Delirium: Acute confusion with a fluctuating level of consciousness, requiring immediate intervention and treatment.
Nursing Responses
Hallucinations: Provide support, assess for safety, and reduce stimuli; use clear, simple communication.
Medication Nonadherence: Develop long-term management plans including regular follow-ups and education on the importance of adherence.
Long-acting Injectable Medications: Discuss when appropriate for compliance in chronic cases where daily medication adherence is challenging.
Cognitive Disorders
Dementia vs. Delirium
Onset: Dementia has a gradual onset, progressing over time; delirium is abrupt and often reversible.
Reversibility: Delirium is often reversible if underlying causes are treated; dementia is typically progressive and irreversible.
Level of Consciousness: Delirium often includes altered consciousness; dementia usually maintains consciousness until later stages.
Causes: Review common causes for each condition, such as infections, withdrawal, or metabolic imbalances for delirium, versus neurodegenerative processes for dementia.
Example Condition: Alzheimer’s Disease
Nutrition Concerns: Monitor weight, hydration, and nutritional status due to challenges with self-care and feeding.
Caregiver Stress: Discuss support systems, resources, and coping mechanisms to prevent burnout.
Therapeutic Communication: Strategies include validation of feelings and using memory aids to engage the patient effectively.
Priority Action for Sudden Mental Status Change: Immediate reassessment and appropriate interventions to identify causes.
Seasonal Affective Disorder
Common Symptoms: Seasonal patterns of depression correlated with changes in light exposure; often symptoms worsen during winter months.
First-line Interventions: Light therapy, psychotherapy, and lifestyle modifications such as increased physical activity and social engagement.
Patient Education Strategies: Importance of routine, maintaining a healthy lifestyle, and awareness of seasonal patterns to mitigate symptoms.
Medication Administration & Teaching
Beta-Blockers for Anxiety
Orthostatic Hypotension: Educate clients on this risk and measures to take when initiating treatment, such as rising slowly from seated or lying down positions.
Client Safety Education: Highlight safety measures while starting new medications and the importance of routine monitoring.
Medication Calculation Practice
Comfort with Calculations: Essential for nursing practice; continual practice ensures accuracy in dispensing medications.
Converting mg to mL: Ensure understanding of standard measurement conversions relevant to medication administration.
Oral Liquid Medication Dosing: Ability to accurately measure, administer, and communicate dosages to clients.
Dimensional Analysis: Apply this method for precise medication calculations, promoting safety in pharmacological practice.