Psychiatry Flashcards
what is the definition of psychosis?
an individual is experiencing a reality different to everyone else (the individual does not realise they are psychotic)
name some symptoms of psychosis.
- hallucinations
- delusions
- formal thought disorder
- disorders of one self
what is a hallucinations?
the perception of an object in the absence of an external stimulus (in clear consciousness) that others cannot percieve
what type of hallucination is most common in psychosis?
auditory hallucination
what can olfactory halucination indicate?
frontal lobe pathology
what is pseudohallucination ?
‘hearing voice in my head’ - not psychosis!!
hallucinations are external, not internal
what is the likely diagnosis when someone is visually hallucinating?
delirium - usually a organic pathology
what is a delusion?
fixed, firmly held beleif that is false , that cannot be reasoned away, that is held despite evidence to the contrary is out of keeping with the persons sociiocultural norms
what are teh types of delusions?
persecutory (believe ppl coming after you)
grandiose (think your’e amazing)
reference (about urself)
erotomanic (think someones in love with you)
hypochrondriacal (health anxiety)
nihilistic (feeling you are dead)
bizarre (absolute not possible )
control (think someone/thing is controlling you)
what is formal thought disorder?
a problem of speech (+ flow of thought) which means each sentence doesnt follow on from the next
what is disorders of the self?
when an individual can no longer distinguish between themself and the world
icnludes:
- thought insertion
- thought broadcasting
- passivity phenomena
what organic disorders must you rule out in psychosis?
- delirium
- dementia
- infection
- endocrine disorders
- TLE
name the three types of functional psychosis?
- schizophrenic (bizarre, persecutory, 3rd person)
- manic (graniose, 2nd person)
- depressive (guilt, poverty, nihilism, 2nd person)
what is shcizophrenia?
a disorder or group of disorders charatcerised by psychotic episodes (positive symptoms) and negative symptoms
symptoms seen in schizophrenia (5 a’s)
Autism
flat Affect (or incongruous)
Ambivalence
loosening of Associations (thought disordeR)
Amotivation or Apathy
name schneiders first rank symptoms for schizophrenia
- hearing ones own thouhgts spoken alou d
- hallucinatory voices in form of statment + reply, pt hears voices speaking about them in 3rd person
- hallucinatory voices in running commentary
- thought broadcasting
- thought withdrawal , thought insertion
- influence of others on feelins, drive and volition of common events
- delusional perception
prevalence of schizophrenia in Uk?
1%
name some causes ??? of schizophrenia
- role of family/upbringing
- obstetrics complications (forcep delivery)
- winter births
- illicit drugs (amphetamines, cannabis)
- genetics (higher incidence in genetic twins)
how to know whether to treat a pt with schizophrenia informally or section them ?
- dependds on risk and insight
low or high risk
if they understand they have schizophrenia then more likely to take drugs
how to do a biopsychosocial assessment of schizophrenia??
bio: blood tests, drug tests, CT - rule out organic problem, check compliance
psycho: MSE, collateral Hx
social: carers and housing
biopsychosocial Tx of schizophrenia?
bio: antipsychotics
psycho: supportive counselling, family therapy
social: debts, benefits, housing, CPN, social worker
name the types of mood disorders
- depressive disorder
- bipoalr disorder
- persistant mood disorder
what are the core symptoms of depression?
- continuous low mood for at least 2 wks
- lack of energy
- lack of enjoyment/interest (anhedonia)
what are the somatic/biological symptoms of depression?
- sleep changes
- appetite and weight changes
- diurnal variation of mood (mornings are worst)
- psychomotor retardation/agitation (dont bother getting up)
- loss of libido