Psychosis Flashcards
What are psychosis?
The presence of hallucinations or delusions.
It describes symptoms and is not a diagnosis in itself.
What are delusions?
Abnormal beliefs, outside of cultural norms, unshakeable.
When could you get psychosis?
Schizophrenia
Drug induced psychosis
Affective psychosis
Post-partum psychosis
Organic psychosis
Delirium caused by infection Delirium tremors - Alcohol withdrawal Acute drug / alcohol intoxicating Post -ictal psychosis -after a seizure Hyperthyroidism Encephalitis (including anti-NMDA receptors) Hypercalcaemia Cerebral Lupus
Iatrogenic:
Steroids
L-DOPA
What are hallucinations?
Perception without a stimulus.
Can be in any sensory modality.
Viral hallucinations are usually organic (caused by a problem with brain or eyes)
What are first rank symptoms?
Auditory hallucinations - hearing thought outloud. Running commentary. Voices refer to the patient in third person a conversing with each other about the patient.
“respond” so stop and listen as overwhelming
Passive experiences - Patient believes an action or feeling is caused by an external force.
Thought withdrawal, broadcast or insertion - Thoughts being taken out, known to others or implanted into the mind
Delusional perception - Attribution of new meaning usually in the sense of self-reference, to a normal perceived object. This new meaning cannot be understood as arising from patient’s affective state or previous attributes.
Somatic hallucinations - Mimics feelings from inside the body
Lack of insight - not believe they are unwell
What are positive symptoms?
Delusions, hallucinations, thought disorder, lack of insight
Added symptoms
What are the positive symptoms?
Underactivity, low motivation, socal withdrawal, emotional flattening, self neglect
Symptoms taken away from the patient.
What is the ICD10 diagnosis of Schizopherenia?
At least one of the following:
- Thought echo, insertion, withdrawal or broadcast
- Delusions
- Hallucinatory voices
Or at least of the following:
- Hallucinations
- Catatonic behaviour
- Neologisms, breaks or interpolations in triangle of thought
- Negative symptoms
What are the types of scizophrenia
Paranoid schizophrenia
Simple schizophrenia
Hebephrenic schizophrenia
Undifferentiated schizophrenia
What is paranoid schizophrenia>
Delusions or hallucinations prominent -This is what most people associated with the word ‘schizophrenia’
What is simple schizophrenia
Loss of drive and interest, aimlessness, idleness, self absorbed attitude and social withdrawal.
Marked decline in social, academic or work performance.
No hallucinations / delusions.
What is hebephrenic schizophrenia?
Definite and sustained flattening or shallowness of effect or incongruity / appropriateness of affect, aimless and disjointed behaviour or thought disorder affecting speech.
Hallucinations / delusions must not dominate.
Undifferentiated
Insufficient symptoms to meet criteria of any subtypes or so many symptoms that they fit more than one criteria
Catatonic Schoziphrenia
Catatonia is a state of psycho-motor immobility and behavioral abnormality manifested by stupor.