Psychosis and schizophrenia Flashcards

1
Q

What is psychosis

A

an acute mental health state, resulting in disrupted thoughts and perceptions and loss of contact with reality

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2
Q

Give 5 differentials for psychosis

A
  • schizophrenia
  • drug and alcohol abuse - cannabis, amphetamines
  • steroid induced psychosis
  • neurological disorders - Parkinson’s, Huntington’s
  • bipolar disorder
  • puerperal psychosis
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3
Q

Give 4 features of psychosis

A
  • hallucinations
  • delusional
  • thought disorganisation - clanging, word salad
  • agitation
  • self-harm
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4
Q

Define a delusion

A

Fixed, strange or irrational belief, which is firmly held, and out of context for the individuals cultural background.

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5
Q

State and describe 3 different types of delusion

A
  • Delusions of grandeur – exaggerated ideas of importance – e.g. belief they are an important historical figure
  • Paranoia – e.g. belief in a plot against them
  • Somatic – belief that they have a terrible incurable illness
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6
Q

What is a hallucination

A

A sensory perception – which can be auditory, visual, touch or smell based – without an obvious real-world stimulus
* e.g. hearing voices, seeing figures which aren’t present

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7
Q

What is schizophrenia

A

chronic mental health disorder characterised by psychosis and Impairment of perception and thinking

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8
Q

Give 3 RFs for schizophrenia

A
  • FHx - strongest
  • substance misuse - cannabis, amphetamines
  • traumatic childhood events
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9
Q

Describe the prodrome period that may precede ‘true’ schizophrenic symptoms

A
  • loss of interest
  • social withdrawal
  • depression
  • anxiety
    classified if symptoms last over 6 months
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10
Q

What are the most common type of auditory hallucination in schizophrenia

A

third person
may be single/ multiple voices

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11
Q

What are Schneider’s First Rank Symptoms of Schizophrenia

A
  • auditory hallucinations - mc
  • thought disorders (withdrawal, insertion and broadcasting)
  • delusional perception
  • passivity phenomenon
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12
Q

What is a delusional perception

A

occurs when the patient experiences an ordinary and unremarkable perception that triggers a sudden, often self-related delusion

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13
Q

What is Passivity phenomena

A
  • believe their bodily sensations being controlled by external influence
  • actions/impulses/feelings - experiences which are imposed on the individual or influenced by others
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14
Q

Apart from the first rank symptoms, give some other features of schizophrenia

A
  • impaired insight
  • negative symptoms
  • thought form - word salad, neologism, circumstantiality
  • catatonia
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15
Q

Give 4 negative symptoms of schizophrenia

A
  • Affective flattening (incongruity/blunting of affect) - minimal emotional reaction
  • Alogia - reduced speech
  • anhedonia - lack on interest in activities
  • avolition - lack of motivation in life
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16
Q

How is schizophrenia diagnosed

A

DSM-5/ ICD-11
* 2 or more of the following present for at least one month, for most days and have some level of disturbance for 6m
- Hallucinations
- Delusions
- Disorganised thinking
- Negative symptoms
- Grossly disorganised or catatonic behaviour

17
Q

How is schizophrenia managed

A
  • psychological therapies - CBT, early intervention, family therapy
  • social support
  • 1st line: oral atypical antipsychotics
  • 2nd: switch to another antipsychotic
  • if 2 other antipsychotics have not been effective consider clozapine
18
Q

Why are atypical antipsychotics recommended over typical ones in the treatment of schizophrenia

A

significant reduction in extrapyramidal side-effects.

19
Q

How may antipsychotics be administered if there’s a compliance issue

A

depot every 2-4 weeks

20
Q

Name 2 antipsychotics that can be given via depot in the treatment of schizophrenia

A
  • aripiprazole
  • risperidone
21
Q

Non-auditory hallucination can occur in schizophrenia but are most common in which type of conditions

A

organic conditions

22
Q

Give 5 factors associated with poor prognosis of schizophrenia

A
  • strong family history
  • gradual onset
  • low IQ
  • prodromal phase of social withdrawal
  • lack of obvious precipitant
23
Q

What is schizoaffective disorder

A

combines the symptoms of schizophrenia with bipolar disorder. Patients have psychosis and symptoms of depression and mania

24
Q

What is a pseudohallucination

A

false sensory perception in the absence of external stimuli when the affected is aware that they are hallucinating