Schizophrenia

Pathophysiology of Schizophrenia

  • Abnormal scattered pattern of thinking.

  • Duration of symptoms: typically persistent for six months or more.

  • Negative effects on various life aspects:

    • Affects relationships.

    • Impairs school performance.

    • Disrupts workflow due to inability to concentrate.

Memory Trick for Understanding Schizophrenia

  • Three S's:

    • S for Schizophrenia

    • S for Scattered Pattern of Thinking

    • S for Suicide Risk (high)

Causes and Risk Factors

  • Genetics:

    • Strong familial link; higher likelihood if a parent has schizophrenia.

  • Neurochemical Factors:

    • Associated with a decrease in dopamine levels in the brain.

Signs and Symptoms

  • Symptoms vary among patients but can be categorized into three main types:

    1. Positive Symptoms (Psychotic Symptoms):

    • Hallucinations.

    • Delusions.

    • Thought disturbance.

    1. Negative Symptoms:

    • Decrease in emotions.

    • Loss of interest.

    1. Cognitive Symptoms:

    • Impaired memory and learning capacity.

Breakdown of Symptoms

Positive Symptoms

  • Definition: Psychotic symptoms affecting perception and thought.

    • Hallucinations: Sensory experiences without real external stimuli.

    • Types:

      1. Tactile hallucinations: Sensation of being touched.

      2. Auditory hallucinations: Hearing voices or sounds.

      • Intervention: Use of earphones and music to distract from internal sounds.

    • Delusions: Strongly held false beliefs.

    • Examples include:

      • Delusions of Reference: Belief that messages in songs or media are personally directed at them.

      • Delusions of Control: Belief in being controlled by external forces (e.g., government, aliens).

      • Delusions of Grandeur: Belief in having extraordinary power or importance (e.g., meeting the queen).

      • Paranoid Delusions: Belief of being persecuted (e.g., fearing food is poisoned).

    • Thought Disturbances:

    • Disorganized Speech:

      1. Loose Associations: Rapid shift between unrelated topics.

      2. Neologisms: Creation of new, nonsensical words.

      3. Clang Associations: Rhyming or rhythmic speech that lacks meaning.

      4. Word Salad: Jumbled words with no logical relationships.

      5. Concrete Thinking: Literal interpretation of phrases.

      6. Tangentiality: Talking about unrelated topics.

      7. Echolalia: Repetition of words or phrases heard from others.

      8. Perseveration: Repeating their own words when asked different questions.

Negative Symptoms

  • Definition: Lack of normal emotional responses or behaviors.

  • The Five A's:

    1. Affect: Flat or expressionless demeanor.

    2. Anhedonia: Inability to feel pleasure.

    3. Apathy: Lack of motivation or interest.

    4. Alogia (Elogia): Reduced speech output.

    5. Anxiety: Preference for solitude over social interaction; significant for NCLEX exams.

Cognitive Symptoms

  • Definition: Affects learning and memory capabilities.

  • Memory Trick: Use double C's: C for Cognitive Symptoms, C for Capacity to Remember.

Schizophrenia Phases (Less Commonly Tested)

  1. Prodromal Phase: Period of withdrawal and decline in function.

  2. Active Phase: Presence of severe symptoms like hallucinations and delusions.

  3. Residual Phase: Reduced intensity of symptoms but cognitive impairments may persist.

Catatonic Schizophrenia

  • Definition: Characterized by specific motor symptoms.

  • Key Features:

    • Immobility or fixed posture.

    • Bizarre posturing.

    • Mutism (no speech).

    • Severe negativism (refusal to follow instructions).

  • Priority Care: Management of nutritional and fluid intake due to high risk for dehydration and malnutrition.

Paranoid Schizophrenia

  • Definition: Characterized by persecutory delusions.

  • Common Beliefs:

    • Fears of being poisoned or spied on.

  • Plan of Care:

    • Reinforce reality, acknowledge feelings without focusing on delusions.

    • Example Response: “I understand that the voices are real to you, but I do not hear them.”

Therapeutic Communication Strategies

  • Use open-ended questions for assessment, especially regarding delusions and hallucinations.

    • Examples:

    • “What are the voices saying to you?”

    • “Describe what you are seeing.”

  • Focus on acknowledging feelings and presenting reality without dismissing experiences.

    • Example Statement: “I see you're frightened. Let's talk about this.”

Important NCLEX Tips

  • Fluid and nutrition management takes priority over other needs according to Maslow's hierarchy.

  • Therapeutic communication techniques should focus on building trust and understanding.