Schizophrenia Flashcards
positive symptoms
delusions- persecutory, passivity, thought interference; auditory hallucinations; formal thought disorder
negative symptoms
poverty of speech and thought, flattened mood, anhedonia, loss motivation, blunted affect, social withdrawal
what are the first rank symptoms
3rd person auditory hallucinations, thought echo, delusional perception, thought insertion/withdrawal, passivity
how long must you be experiencing symptoms for for diagnosis
1 month ICD10, 6 DSM
types of schizophrenia
paranoid, catatonic, hebephrenic, residual(chronic), undifferentiated (simple)
what is paranoid schizophrenia
most common. delusions and auditory hallucinations
what is catatonic schizophrenia
uncommon. psychomotor disturbance, rigidity, posturing, echolalia, echopraxia
differentials
substance induced psychosis, psychosis due to general medical condition, mood disorders with psychotic features, sleep related disorder, dementia and delirium, PTSD, OCD, schizoaffective disorder
aetiology
neurochemical, genetic, neurodevelopmental, social
what happens to the chemicals in the brain
increased dopamine, increased serotonin, decreased glutamate
neurodevelopmental causes
obstetric complications, neurodevelopmental delay, cannabis, temporal lobe epilepsy
genetic causes
50% those with monozygotic twins have it
social causes
socio economic deprivation, excess of life events, living in a family with high expressed emotion- more likely to relapse
what is high expressed emotion
family is overinvolved, critical comments, making it hostile
what is schizoaffective disorder
mixture of schizophrenic and affective symptos- equal weighting
what is delusional disorder
fixed delusion or delusional system with other areas of thinking preserved
what is brief psychotic episodes
lasting less time than required for schizophrenia diagnosis
what can be used to treat acute psychotic episode
lorazepam and haloperidol (oral first line, IM second line)