Chapter 21: Schizophrenia Spectrum and Other Psychotic Disorders

What are the key features of schizophrenia spectrum disorders (SSDs)?

Key features include symptoms like hallucinations, delusions, disorganized speech, and negative symptoms.

What is the clinical course of schizophrenia disorder?

The clinical course includes an acute illness period, stabilization period, maintenance and recovery period, and potential relapses.

What are prodromal symptoms in schizophrenia?

Prodromal symptoms are subtle signs that may precede the first episode of psychosis.

What is the duration of untreated psychosis (DUP)?

DUP refers to the time from the onset of psychotic symptoms until the individual receives treatment.

What is the focus of initial treatment for schizophrenia disorder?

Initial treatment focuses on thorough assessment and alleviation of symptoms through medication and safety measures.

What characterizes the stabilization period in schizophrenia treatment?

Symptoms become less acute, treatment intensifies, and socialization begins to increase.

What is the goal during the maintenance and recovery period for schizophrenia?

The goal is to regain a previous level of functioning and improve quality of life.

What is a major reason for relapse in schizophrenia patients?

Non-adherence to the medication regimen is a major reason for relapse.

What are the DSM-5 diagnostic criteria for schizophrenia?

Criteria include two or more symptoms like delusions, hallucinations, disorganized speech, and negative symptoms for at least one month.

What are positive symptoms of schizophrenia?

Positive symptoms include hallucinations, delusions, bizarre behavior, and thought impairments.

What are negative symptoms of schizophrenia?

Negative symptoms include affective flattening, asociality, alogia, avolition, and anhedonia.

What is neurocognitive impairment in schizophrenia?

Neurocognitive impairment affects memory, attention, and executive functioning, impacting functional outcomes.

How does schizophrenia present in children?

Symptoms are similar to adults but may include less developed hallucinations and delusions.

What is late-onset schizophrenia?

Late-onset schizophrenia is diagnosed between ages 40 and 60 or after 60 years old.

What are common risk factors for schizophrenia?

Risk factors include low socioeconomic status, homelessness, and stresses during the perinatal period.

What is the prevalence of schizophrenia in the general population?

Approximately 1% of the general population is affected by schizophrenia.

What is the impact of adverse childhood experiences (ACEs) on schizophrenia?

ACEs are estimated to contribute to a 33% increase in the incidence of psychosis if they occur.

What role does family support play in the recovery of schizophrenia patients?

Family support is crucial for monitoring early signs of relapse and coping strategies.

What is the significance of emotional blunting in schizophrenia?

Emotional blunting reduces the ability and desire to engage in hobbies and relationships.

What is the relationship between cognitive deficits and schizophrenia?

Cognitive deficits can lead to difficulties in recognizing patterns and transferring learning.

What are the common challenges faced by older adults with schizophrenia?

Older adults may face additional medical issues and social challenges like loneliness and depression.

What are the implications of discontinuing medication for schizophrenia patients?

Discontinuing medication almost certainly leads to relapse and may act as a stressor.

What is the role of the nurse in caring for patients with schizophrenia?

Nurses focus on assessment, interventions, and evaluation of care plans tailored to the patient's needs.

What differentiates schizoaffective disorder from schizophrenia?

Schizoaffective disorder includes mood episodes concurrent with active-phase symptoms of schizophrenia.

What is the importance of recognizing secondary factors in schizophrenia?

Recognizing secondary factors like medical issues is essential for comprehensive care.

What is the impact of social isolation on schizophrenia patients?

Social isolation can exacerbate symptoms and hinder recovery efforts.

What are the common symptoms of disorganized behavior in schizophrenia?

Disorganized behavior may include catatonia and grossly disorganized actions.

What are the predominant symptoms of schizophrenia before age 25?

More gradual and negative symptoms predominate.

At what median age do men typically get diagnosed with schizophrenia?

Around their 20s.

At what median age do women typically get diagnosed with schizophrenia?

In the mid to late 20s.

What is the risk of comorbidity in individuals with schizophrenia?

Life expectancy may be shortened due to associated risks like diabetes, chronic obstructive pulmonary diseases, and suicide attempts.

How much more likely are individuals with schizophrenia to attempt suicide compared to the general population?

Six times more likely.

What genetic risk factor significantly increases the likelihood of developing schizophrenia?

A recurrent deletion of chromosome 22q11.2.

What is the chance of developing schizophrenia if both parents have the disorder?

40% chance.

What is the chance of developing schizophrenia in monozygotic twins if one twin has it?

45-50% chance.

What is the chance of developing schizophrenia in dizygotic twins if one twin has it?

12% chance.

What are some neuroanatomic factors associated with schizophrenia?

Ventricular dilatation and prefrontal lobe volume deficit.

What hypothesis relates to the hyperactivity of the mesolimbic dopamine pathway?

Dopamine Hyperactivity Hypothesis.

What neurotransmitter is hypothesized to be hypoactive in schizophrenia, affecting various symptoms?

Glutamate.

What is the Dysconnectivity Hypothesis in relation to schizophrenia?

It suggests significant functional hypoconnectivity in brain networks impacting cognition and symptoms.

What is a potential link between visual acuity and schizophrenia?

Changes in visual acuity may be linked to the later onset of schizophrenia.

What is the role of interdisciplinary treatment in managing schizophrenia?

Involves various disciplines like nursing, psychiatry, psychology, and social work.

What are some barriers to effective treatment for schizophrenia?

Inadequate funding, staff shortages, and insufficient community support.

What is a priority care issue for patients with schizophrenia?

Suicide/homicide risk due to command hallucinations.

What should be assessed in the biological domain of nursing management for schizophrenia?

Present and past health status, physical functioning, and pharmacologic assessment.

What is the typical time frame for antipsychotic medications to take effect?

1-2 weeks initially, with a stabilization period of 6-12 weeks.

What is Neuroleptic Malignant Syndrome (NMS)?

A life-threatening reaction to antipsychotic medications characterized by hyperthermia and muscle rigidity.

What are some classic symptoms of NMS?

Hyperthermia, 'lead pipe' rigidity, and mental status changes.

What should be done if NMS is suspected?

Discontinue antipsychotics immediately and notify the physician.

What is the significance of monitoring vital signs in patients on antipsychotics?

To detect early signs of complications like NMS.

What is one strategy to improve medication adherence in patients with schizophrenia?

Build a trusting relationship and simplify medication regimens.

What role does family involvement play in the treatment of schizophrenia?

It is crucial for support and understanding of the illness and treatment.

What is the impact of antipsychotics on metabolic syndrome?

Antipsychotics can contribute to diabetes mellitus and increased substance use.

What is the goal of pharmacologic interventions in managing schizophrenia?

To achieve remission and align treatment goals with the patient's aspirations.

What is an anticholinergic crisis?

An emergency caused by an overdose of or sensitivity to anticholinergic drugs.

What are common neuropsychiatric signs of anticholinergic crisis?

Confusion, recent memory loss, agitation, dysarthria, incoherent speech, pressured speech, delusions, ataxia, and alternating hyperactivity with somnolence.

What physical signs indicate an anticholinergic crisis?

Unreactive dilated pupils, blurred vision, hot dry flushed skin, dry mucous membranes, difficulty swallowing, fever, tachycardia, hypertension, decreased bowel sounds, urinary retention, nausea, vomiting, seizures, or coma.

What is the effective antidote for anticholinergic crisis?

Physostigmine, an inhibitor of anticholinesterase.

What is the adult dose of physostigmine for treating anticholinergic crisis?

1-2 mg IV given over a period of 5 minutes.

What should be done in case of an overdose of anticholinergic drugs?

Treat with gastric lavage, administration of charcoal, and catharsis, which may be repeated after 20-30 minutes.

What is the role of cytochrome P450 1A2 in drug interactions?

It metabolizes olanzapine or clozapine, and inhibitors like fluvoxamine can increase antipsychotic blood levels to toxic levels.

How does cigarette smoking affect the metabolism of olanzapine or clozapine?

It induces the 1A2 enzyme, lowering the concentration of drugs metabolized by this enzyme.

What is the impact of antidepressants on antipsychotic levels?

Antidepressants like fluvoxamine can increase the levels of antipsychotics metabolized by the 3A4 enzyme.

What are non-bizarre delusions?

Delusions derived from ordinary life experiences, such as believing a spouse is unfaithful.

What are bizarre delusions?

Implausible delusions not derived from ordinary life experiences, such as thought broadcasting.

What is affective lability?

Rapid and extreme changes in emotional expression.

What cognitive impairments may occur in patients with schizophrenia?

Diminished ability to focus on relevant stimuli, unrecognized familiar cues, and diminished information processing.

What percentage of patients with schizophrenia show a lack of insight?

57-98% due to neurologic deficits that prevent recognition of their illness.

What is the significance of self-concept in patients with schizophrenia?

Patients often have a poor self-concept and are aware of their differences.

What should nurses assess regarding suicide risk in patients with schizophrenia?

Assess for suicidal talk, delusional thinking, command hallucinations, and access to weapons.

What is the focus of the nurse-patient relationship in psychiatric care?

Development of trust and acceptance, approached in a calm and caring manner.

What are the three outcomes for managing disturbed thoughts and sensory perceptions?

Decrease frequency and intensity of hallucinations/delusions, recognize them as symptoms of a brain disorder, and develop management strategies.

What is the role of cognitive-behavioral therapy (CBT) in relapse prevention?

Helps patients monitor and identify emerging symptoms to prevent relapse.

What type of learning environment is best for patients with schizophrenia?

An errorless learning environment where correct information is provided and encouraged to be written down.

What interventions can nurses implement to enhance cognitive functioning?

Develop strategies targeting attention, memory, planning, and problem-solving impairments.

What are effective behavioral interventions for patients with schizophrenia?

Improving motivation, organizing routines, and reinforcing positive behaviors.

What stress management techniques can nurses teach patients?

Relaxation exercises and music therapy to reduce symptoms of depression.

What should nurses assess regarding the source of stress in patients?

Identify stressful events associated with psychiatric symptoms and the patient's coping patterns.

What is the importance of patient education in managing schizophrenia?

Patients learn best when information is presented simply and when they are ready to learn.

What is the significance of assessing thought processes in patients?

To identify disorganized communication, impaired verbal fluency, and shifts in conversation focus.

What are the signs of hallucinations in patients?

Sensory experiences that are not present, often accompanied by disorganized thoughts.

What is the purpose of skills training intervention in nursing?

To compensate for cognitive deficits.

What should patients check before leaving home?

That they have the correct bus fare.

What is the role of family education in patient care?

To help patients maintain their treatment and provide information about their disorder, treatment, and life management skills.

What is included in a social assessment for nursing?

Evaluating social systems, isolation, and living arrangements.

How can nurses improve a patient's quality of life?

By arranging transportation, changing roommates, and ensuring stable housing.

What is a key nursing intervention for promoting patient safety?

Monitoring for potential aggression and administering medication as ordered.

What is the hallmark of Schizoaffective Disorder according to DSM-5?

The presence of a major mood episode concurrent with symptoms characteristic of schizophrenia.

What are the two subtypes of Schizoaffective Disorder?

Bipolar type and depressive type.

What is the lifetime prevalence of Schizoaffective Disorder?

About 0.3%.

What age group typically experiences onset of Schizoaffective Disorder?

Early adulthood.

What pharmacologic interventions are used for Schizoaffective Disorder?

Antipsychotics and antidepressants.

What is a common nursing diagnosis for patients with Schizoaffective Disorder?

Risk for healthy family functions and difficulties managing social expectations.

What is the core feature of Delusional Disorder?

The presence of stable, well-systemized, and logical non-bizarre delusions.

What are the DSM-5 diagnostic criteria for Delusional Disorder?

Presence of one or more delusions for 1 month or longer, with no other psychiatric disorders.

What are the subtypes of Delusional Disorder?

Erotomania, grandiose, jealous, persecutory, and somatic.

What is a key teaching point for patients regarding medication?

To know the target symptoms and times of administration for their medications.

What should patients on olanzapine and clozapine monitor?

Body weight and report any rapid weight gain.

What is the recommended approach for patients experiencing orthostatic hypotension?

Get up slowly from lying or sitting positions and maintain adequate fluid intake.

What should patients report immediately to their healthcare provider?

Dramatic changes in body temperature or inability to control motor movement.