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
what are the cognititve symptoms of depression>
- low sefl esteem
- guilst/self blame
- hopelessness
- hypochondrical thoughts
- poor concentration/attention
- suicidal thoughts
diagnosis of depression (mild, moderate, severe, severe with psychotic symptoms)
mild - 2 core + 2 others (abel to function)
moderate - 2 core + 3/4 others
severe - 3 core + at least 4 others
severe with psychotic symptoms (auditory hallucinations, delusions)
what is the incidnece of PND?
10-15% within 1-2 months post partum
symptoms of hypomania?
- mildly elevated, expansive or irritable mood
- increased energy/activity
- increased self esteeem
- sociability, talkativeness over familiarity
- increased sex drive
- reduced need for sleep
- difficulty in focussing on one task alone
what is hypomania?
periods of over-active and excited behaviour that can have a significant impact on your day-to-day life. Hypomania is a milder version of mania that lasts for a short period
symptoms of mania?
- elevated/expansive/irritable mood (1 week)
- icnreased energy/activity
- gradiosity//increased self-esteem
- pressure of speech
- flights of ideas/racing thoughts
- distractibility
- reduced need to sleep
- increased libido
- psychotic symptoms (extreme)
what are teh two types of persistant mood disorder?
cyclothymia: mild periods of elation/depression, early onset, chronic cause (less severe bipolar disease)
dysthymia: chronic low mood not fulfilling the criteria of depression (less severe depression)
** both must be present for 2 yrs to make a diagnosis
what is mixed affective state?
characterised by either mixture or a rapid alternation of hypomanic, manic and depressive symptoms
what is the definition of bipolar I and bipolar II?
bipolar I: 1 or moe manic episodes or mixed episodes, +- 1 or more depressive episodes
bipolar II: 1 or more depressive episodes with at least 1 hypomanic episode
causes of mood disroders? (biopsychosocial)
bio: genetic, brain illnesses, physical illnesses,
psycho: childhood experiences, view of yourself and the world, personality traits
social: work, housing, finances, relationships, support etc
Tx of mood disorders?
bio: pharm , ECT (electroconvulsive tx) , rTMS (Repetitive transcranial magnetic stimulation), tDCS (Transcranial direct current stimulation)
psycho: psychoeducation, CBT, IPT, psychodynamic, mindfulness
social: family, housing, finance, employment, general coping strategies
what pharm tx is used in psychiatry
- antidepressants (e.g. SSRIs)
- mood stabilisers (lithium, valproate, carbamazepine, lamotrigine)
- antipsychotics
- anxiolytics
what are teh indications for ECT?
- severe depressive illness
- life threatening illness
- prolonged and severe manic episode
- catatonia
- high suicide risk
- stupor
- severe psychomotor retardation
what is ECT?
treatment that involves sending an electric current through the brain to trigger an epileptic seizure
occurs twice a week, max of 12 treatments
what are personality disorders?
conditions in which a idnividual differs significantly from an average person in terms of how they think, percieve, feel or relate to others
how many types of personality disorders are they?
10
what are the cluster A group of personality disorders?
paranoid: suspicious and mistrustful, misintepreting events as persecutory, bearing grudges, strong sense of personal rights
schizoid: detached, solitary, little interest in ppl or sex
schizotypal: eccentric, odd behaviour and thinking, unconventional beliefs
what are the cluster B group of personality disorder?
borderline: emotional instability, impulsivity, chronic feelings of emptiness, parasuicidal acts, intense and unstable relationships , fear of abandonment
narcissistic: present as grandiose, self-important, degrading others
antisocial: present wiht unconcern for the feelings of others, disregard rules, impulsivity, low tolerance to fustration, failure to take responsibility
historionic: present as theatrical, dramatic, exhibit superficial emotionality, seductiveness, suggestibility
what is in cluster C group of personality disorders?
obsessive compulsive: present as rigid, perfectionistic, preoccupied with rules, order and routine, higher snese of morality
dependent: present as needing others to make decisions for them, fear abandonment, unable to cope alone, need for resassurance
anxious-avoidant: present with persistent anxiety, sensitive to rejection, tend to avoid relationships unless acceptance is guarenteed
what is attachment theory?
the emotional bond between parent + child is crucial for childs survival
experience of consistent + responsive caregiver gives sense that world is safe and they are loved
helps brain develop and enables necessary wiring and chemical connection to allow regulation of feelings
Mx for personality disorders?
- harm minimisation (elastic bands or ice cubes on wrists)
- emotional management
- boundaries (explain expectations of the service user + be consistent and reliable)
Tx for personality disorders?
- psychotropic medication only to treat comorbidities
- group Tx/therapeutic community
- DBT (dialectical behaviourhal therapy)
- mentalisation base therapy
- transferance focused therapy
are children allowed to refuse life saving treatment?
No, they cannot
are children allowed to consent to procedures
yes they are - if they have capacity
what is the mental capacity act 2005
single test of capacity
principles of MCA 2005?
presumption of capacity at all times
a new legal right to support individuals in making their own decisions
pts have the right to make unwise decisions
if a pt is unconcsious and need an op, can you operate?
yes - if its in their best interest
- try and consult with next of kin
- try to regain pt consciousness beofre op
what is the two stage capacity test?
- is there an impairment of or disturbance in the functioning of a persons mind
- has it made the person unable to make a particular decision
what are the parts of capacity test to understand if a pt has capacity
- understand the information
- retain the information
- use or weigh up info
- communicate decision
what are advance decisions?
they are anticipatory refusals
only relate to medical tx
person must be >18 and have capacity when making AD
what are lasting power of attorney?
enables a mentally capable person to plan to incapacity
can extend to property, welfare, healthcare matters
still have to make decisions in pts best interest
what is deprivation of liberty safeguards (DOLS)?
for patients in hospital or care homes who lack capacity - allows pts who are not allowed to leave wards have some freedom e.g. supervised walks
MDT assessment
what is section 5(4) of the mental health act?
power granted to RMNs to detain an inpatient fro up to 6 hours for medical assessment where mental illness in suspected
(cannot be used in ED, need to be admitted to hosp)
what is section 5(2) of mental health act?
the consultant or nominated deputy can detain an inpatient for up to 72 hrs under MHA
-> to allow fuller assessment and MHA to be completed
(cannot be used in ED, need to be admitted to hosp)
what is section 2 of the MHA?
2 doctors (1 of whom shld be section 12(2) approved) & 1 AMHP
in community or inpatient (not prison) section for max 28 days for assessment + treatment of mental disorder
(pt can appeal within first 14 days)
what is section 3 of the MHA?
2 doctors (1 of whom shld be section 12(2) approved) & 1 AMHP
in community or inpatient (not prison) section for max 6 months for treatment of mental disorder
(pt can have 1 appeal)
what is section 136 of the MHA?
police power to remove to a place of safety from a public place for an assessment by an AMHP and 1 Dr
help up to 72 hrs to allow assessment
police to stay with person
what is section 17/117 of MHA?
section 17 - whilst detained in hopsital under S2 or S3 a pt may leave under S17 (go on walks, go home)
section 117 - anyone whos been under S3 is entitled to S117 aftercare from local authority