Psychiatry Flashcards
Name 5 perceptual symptoms
illusion hallucination delusion delusional perception over valued idea
PHENOMENOLOGY
What is a mental disorder
Any disorder or disability of the mind excluding substance abuse - drugs and alcohol
PHENOMENOLOGY
Define psychosis
Severe mental disturbance charecterised by loss of contact with external reality
PHENOMENOLOGY
Define neurosis
Relatively mild mental illness in which there is no loss of connection with reailty
PHENOMENOLOGY
Define phenomenology
Study of signs and symptoms describing abnormal states of mind
PHENOMENOLOGY
Define illusion
False perception of a real external stimulus
PHENOMENOLOGY
Define hallucination
Perception in the absence of an external stimulus
PHENOMENOLOGY
What are the different types of auditory hallucinations
2nd person - Voices speak directly to the patient
You are a bad person
3rd person - Runnin commentary
Voices discuss what the patient has been doing
PHENOMENOLOGY
In terms of hallucinations what are the main sesnses
Visual auditrory tactile gustatory olfactory
PHENOMENOLOGY In terms of halluciantions what are.. i) Reflex ii)Extracampine iii) Hypnagoic iiii)Hypnopompic
i) Stimulus in one sensory modality produces a sensory experience in another
ii) Hallucination that is outside the limits of the sensory fields
Eg: Hears voices talking in paris when they are in Sydney
iii) Occur when subject is falling asleep
iiii) Occur when subject is waking up
PHENOMENOLOGY
What are disorders reflex hallucinations commonly found in and give an example
Canabis and LSD poisoning
Eg: writing on a piece of paper but you can feel the scratching on the heart
PHENOMENOLOGY
What is Charles bonnet syndrome and what conditions can it be seen in
Visual hallucinations caused by the brain’s adjustment to significant visual loss.
Patient understands that the hallucinations aren’t real
- Macular degeneration
- Diabetic retinopathy
PHENOMENOLOGY
Define pseudo-hallucination
A perception in the absence of an external stimulus experienced in one’s subjective inner space of the mind rather than external sensory objects - Patients have insight
PHENOMENOLOGY
Define over-valued idea
A false or exaggarated belief held with conviction but not with delsuional intensity
This idea although resonable dominates their life and causes distress
PHENOMENOLOGY
Define delusion
False belief that is firmly maintained in spite of inconvertible evidence to the contrary.
It’s out of keeping with the patient’s social and cultural background
PHENOMENOLOGY
What are primary and secondary delusions
Primary - Direct result of psychopathology
Secondary - Arise from some other morbid experience or in response to other primary psychiatric condition
PHENOMENOLOGY In terms of delusions what are... i) Persecutory ii) Grandiose iii) Nihilisitc iv) Guilt
i) Belief that someone is trying to inflict harm on them
ii) Belief that the patient is powerful / crucially important beyond truth
iii) Belief involving intense feeling of emptiness, patient denies the existence of their body and mind
iv) Ungrounded feelings of remorse for situations
PHENOMENOLOGY
Name 2 delusional misidentification syndromes
Capgras
Fregoli
PHENOMENOLOGY
What are Cpagras delusions
Delusions that a close friend / relative has been replaced by an imposter
PHENOMENOLOGY
What are fregoli delusions
Delusion that a stranger is someone they know is in disguise
PHENOMENOLOGY
What are cotard delusions
Nihilisitic delsuions that body parts are misssing/person is dead / parts are rotting
PHENOMENOLOGY
What is a delusional perception
A primary delusion of 2 componenets
Normal perception is sunject to delusional interpretation
Eg: Traffic light changed red so that means I am son of God
PHENOMENOLOGY
What is thought alienation?
What are the 3 components of this?
Sx of psychosis in which a patient feels their thoughts are no longer in their control
Thought insertion
though withdrawal
Thought broadcast - Delusional belief that thoughts are accesible to others without expressing them
PHENOMENOLOGY
What is concrete thinking
Loss of ability to understand abstract concepts and metaphorical ideas
Leads to a strictly literal form of speech
PHENOMENOLOGY In terms of thought disorders, what is.... i) Flight of ideas ii) Pressured speech iii) Poverty of speech alogia
i) Thoughts follow eachother rapidly causing abrupt leaps between topics. Connection between successive thoughts due to chance factor
ii) Rapid speech without pauses that is difficult to interrupt
iii) Speech lacking i content or amount
PHENOMENOLOGY In terms of thought disorders what is... i) circumstantiality ii) Preservation iii) thought block
i) Irrelevant wandering in a conversation - going around the point
ii) Repetition of a word, theme or action beyond that point at which it was relevant
iii) sudden interruption in the train of thought, leaving a blank
PHENOMENOLOGY
What is loosening of associations
A lack of logical association between sequential thoughts often leading to incoherent speech, impossible to follow train of thought
PHENOMENOLOGY In terms of thought disorders What is... i) neologisms ii )incoherence / word salad iii) povery of thought
i) making up new words
ii) confused mixture of seemingly random words and phrases
iii) Subjective expereince of being devoid of thoughts
PHENOMENOLOGY
What is passivity phenomena
Feeling that ones actions / thoughts are not their own but are controlled by someone else
PHENOMENOLOGY
What is somatic passivity
Delusional belief that one is a passive recipient of bodily sensations from an external agency e.g. the devil is making my arms itch
PHENOMENOLOGY
What is psychomotor retardation and what conditions would you find it in?
Slowing of thoughts and movements with decreased spontaneous movements
Parkinons disase
depression
PHENOMENOLOGY
Define anhedonia
Inability to experience pleasure form activities usually found enjoyable
PHENOMENOLOGY
Define apathy
Lack of interest, enthusiasm or concern
PHENOMENOLOGY
Define incongruity of affect
Emotional responses which don’t match the situation
Eg: smiling even though they’re upset when someone dies
PHENOMENOLOGY
Define blunting of affect
A limited range of normal emotional responsiveness
PHENOMENOLOGY
Define depersonlisation
When a person feels detached from themselves
PHENOMENOLOGY
Define derealisation
Person expereinces detachment from the world around them
PHENOMENOLOGY
Define obsession
Repetitive irrationsl thoughts / impulses which are intrusive and persistent despite efforts to resist.
Insight preserved - Recgonised as own thoughts
PHENOMENOLOGY
Define compulsions
Repetitive purposeful behaviour performed in response to an obsession to reduce anxiety
PHENOMENOLOGY
Define catatonia
Abnormality of movement and behaviour arising from a disturbed mental state
Eg: Echolalia
PHENOMENOLOGY
Define conversion
Development of features suggestive of physical illness without a physical cause
PHENOMENOLOGY
Define belle indifference
A suprising lack of concern for / denial of apparently severe functional disability
PHENOMENOLOGY
Define mannerism
Repeated involuntary movements
PHENOMENOLOGY
Define confabulation
Giving a false account to fill in a gap of memory
PHENOMENOLOGY
What is made, acts and feelings
Something is making you act something out, feel something, or drive you to do something
MENTAL HEALTH ACT 1983
What are the main principles of the MHA? (5)
Minimise impact of of mental illness on individual Maximise patient and others safety Minimise restrictions on liberty Effectiveness of treatment Respect for pateints wishes and feelings
MENTAL HEALTH ACT 1983
What is the MHA and where does it apply to?
Provides legal framework for assessment and treatment of people with a mental disorder
England
Wales
MENTAL HEALTH ACT 1983
What does an individual have to show in order to be sectioned
- Evidence of MH disorder
- Evidence they’re a risk to themselves or others and treatment is in the interests of safety
- Appropriate treatment must be available
MENTAL HEALTH ACT 1983
i) What is a S12 approved Dr
ii) What is an AMPH
i) Doctor with expertiese in treatment and assessment of mental health disorders
ii) Health proffesional with specialist non medical skills in mental health assessment and law
MENTAL HEALTH ACT 1983
Who can remove a section?
Consultant psychiatrust
MH review tribunal if patient disagrees with section
Nearest relative can make an order to discharge patient from hospital with 72hr written notice
MENTAL HEALTH ACT 1983
What is the: Purpose, duration, location and proffesionals involved in a Section 2?
P - Admission for assesment but treatment can be given without consent
D - 28d (Non-renewable)
L - Anywhere in community
P - 2Drs (1x S12), 1 AMHP
MENTAL HEALTH ACT 1983
What is the: Purpose, duration, location and proffesionals involved in a Section 3?
P - Admission for treatment
D - 6 months (Renewable)
L - Anywhere in community
P - 2 doctors (1 x S12) + AMHP
MENTAL HEALTH ACT 1983
What is the: Purpose, duration, location and proffesionals involved in a Section 4?
P - Emergency order
Waiting for second doctor would lead to undesirable delay
D - 72hrs
L - Anywhere in community
P - 1 S12 doctor and AMHP
MENTAL HEALTH ACT 1983
Where can you apply a section 5 and what cannot be done to a patient on a section 5?
Voluntary patient in hospital that wants to leave - Not A+E
Cannot co-ervively treat a patient but provides legal framework to restrain
MENTAL HEALTH ACT 1983
What is the: Purpose, duration, location and proffesionals involved in a Section 5 (2)?
P - Drs holding power allowing for S2/3 assesment
D - 72hrs
Proffesionals - 1 Dr
Usually the one in charge of their care
MENTAL HEALTH ACT 1983
What is the: Purpose, duration, location and proffesionals involved in a Section 5(4)?
P - Nurses holding power until Dr can attend to assess
D - 6hrs
Proffesionals - 1 registered nurse
MENTAL HEALTH ACT 1983
What are the 2 police sections and what are their differences?
what is the duration and purpose of these?
S135 -
Court order to access patient’s home and move to place of safety for MHA Assesment.
Applied through magistrates court by social worker - Required to accompany police
S136 -
D - >72hrs
Allows police to arrest a person suspecte dof having a mental disorder in a public space and moved to a place of safety
SOMATISATION DISORDER
What is somatisation disorder?
How many years do symptoms have to be present for a diagnsis?
Psychiatric disorder in which patients experience psychological distress in the form of multiple and incosistent MUS
SOMATISATION DISORDER
What is a patient with somatisation disorder reluctant to do?
Accept reassurance despite negative test results
SOMATISATION DISORDER
How does a patient with a somatisation disorder present?
- No specific and atypical sx
- Patient refuses to accept -ve results
- discrepancy between subjective and objective findings
- Results in multiple needless Ix and operations
- Sx move from one system to another once diangostic possibilities have been exhausted
SOMATISATION DISORDER
What is the management of a patient with somatisation disorder
Rule out organic illness
Communicate dx and reassure patient of continuing care
- 1 regular doctor
Psychotherpay
- CBT / Group therapy
PUBLIC HEALTH APPROACH TO MH
What is the primary prevention for MH issues?
Preventing problems from occuring
Education of MH issues
Encouraging conversations
PUBLIC HEALTH APPROACH TO MH
What is the secondary prevention for MH issues?
Early interventions before the problem starts to emerge to resolve it
- IAPTT
PUBLIC HEALTH APPROACH TO MH
What is the tertiary prevention for MH issues?
Making sure an ongoing problem is well managed to avoid crises and reduce its harmful consequences
- Monitoring medications
- Making sure physical health problems are addressed / checked
PSYCHIATRIC TREATMENTS
What is ECT and what is the puropse of it?
Treatment that involves sending an electric current through the brain under GA
- Stimulate development of new neurones
- Increases serotonin and dopamine
PSYCHIATRIC TREATMENTS
Name some inidcations for ECT therapy?
Severe life threatening depression psychotic depression treatement resisitant schizophrenia catatonia severe long lasting mania
PSYCHIATRIC TREATMENTS
What are the short term effects of ECT?
Drowsy / confused
headache
retrograde amnesia
muscle ache
PSYCHIATRIC TREATMENTS
what are the logn term effects of ECT?
Apathy
Imapired memory
difficulty concetrating
PSYCHIATRIC MANAGEMENT
What is the biopsychosocial formulation and what are the 5P’s
An approach to understanding a patient and describing their sx
Presenting
Predisposing factors (what increases a pts risk of developing a mental illness)
- Precipitating factors (potential trigger to the onset of current problem)
- Perpetuating factors (what maintains the problem once it’s been established)
- Protective factors (strengths that reduce the severity of problems)
PSYCHIATRIC MANAGEMENT
Give examples of what might come under the 5Ps (excluding presenting).
Predisposing = genetics, life events, temperament
Precipitating = abuse, drug misuse, loss of family
Perpetuating = drug abuse, lack of social support, financial difficulties
Protective = family support, children, marriage
ORGANIC DISORDERS
What is an organic disorder
Describes reduced brain function due to illnesses that are not psychoatric in nature
Aetiology is in CNS
ORGANIC DISORDERS
What is delirium?
Transient acute metal confusional state
characterised by disturbance of consciousness, perception, sleep-wake cycle, emotion + cognition
ORGANIC DISORDERS
What are the 2 states of delirium?
Hyperactive
Hypoactive
ORGANIC DISORDERS
What is the aetiology of delirium?
DELIRIUM
D - Drugs (Anti-Ach/BDZs)
E - Environment / electrolytes
Uraemia / LF / Gluocse
L - Lack of drug (withdrawal)
Opiates /levodopa/alcohol
I - Infection
R - Retention (stool/urine)
Reduced sensory input -blind / deaf
I - Intracranial isses
Stroke / post-ictal / Meningitis
U - Underhydration / Undernutrition
M - Myocardical
S - Subdural / sleep deprived / Surgery
ORGANIC DISORDERS
What are some metabolic causes of delirium?
- Hypo/hyperthyroid
- Hypo / hyperglycaemia
- Hypercortisolaemia
- Substance misuse
- Withdrawal (incl. delirium tremens)
- Opioids, anticholinergics, Parkinson’s meds, steroids, BDZs, interactions
ORGANIC DISORDERS
What are some high risk factors for delirium?
- > 65y, men, previous delirium
- Pre-existing cognitive deficit (dementia, PD, stroke)
- Sensory impairment (hearing/visual)
- Significant illness (hip #, cancer)
- Poor nutrition
- Hx of alcohol excess
ORGANIC DISORDERS
Describe the 2 sub-types of delirium?
- Hyperactive = agitated/aggressive, hallucinations, delusions, wandering + restless
- Hypoactive = withdrawn, quiet, lethargic, lacks concentration, slow
ORGANIC DISORDERS
What is a suitable screening tool for delirium?
4AT (≥4 = likely) –
- Alertness
- AMT4 (age, DOB, hospital name, year)
- Attention (list months backwards)
- Acute change or fluctuating course
ORGANIC DISORDERS
What other cognitive tools can be used in the assessment of delirium/dementia?
- GP-COG (GP assessment of cognition)
- 6-CIT (6-item cognitive impairment test)
- AMT (abbreviated mental test)
- MOCA (Montreal Cognitive Assessment, <26/30)
- MMSE
- ACE-III
ORGANIC DISORDERS
What bedside assesments can you do on a confused patient?
Hydration status O2 stats BP Temp Blood glucose ABG VBG
ORGANIC DISORDERS
What is involved in a confusion screen?
FBC B12 + FOlate U+E Ca2+ TFT LFT Gluocse INR + Clotting CRP / ESR Toxicology
ORGANIC DISORDERS
What non invasive tests can also be used in a patient with suspected delirium?
What referrals could be considered?
CXR
CT head
ECG
Referral to memory clinic or old age psychiatrist
ORGNAIC DISORDERS
What is required for a delirium diagnosis?
Acute mental change from baseline - fluctuating
- Impaired attention
- Disorientation in time, place and person
- Cognitive imapirement
- Sleep wake abnormality
- Disorganised thinking
- Medical cause
ORGANIC DISORDERS
What is the mainstay of treatement for delirium?
Treat underlying vause
Capacity assessment
Maximise orientation
Make environment safe and comforting
ORGANIC DISORDERS
How long can a recovery from delirium take?
3-6 months
ORGANIC DISORDERS
What is the management for a patient with delirium?
Reorientate: Clocks and calendars Continuity of care - Frequent reassurance Consistency of staff members Avoid multiple rooms/ward moves Sleep hygiene Discourage napping Bright light exposure during daytime Good lighting environment Encourage visits from family Mobilize and encourage exercise Tx sesnory imapirements - glasses / hearing aids
ORGANIC DISORDERS
Sometimes conservative de-escalation is inadequate and medications may be required. What is the pharmacological management and what are the CI to this?
Oral Haloperidol
Extremely agitated patients – small doses
CI: Lewy body dementia / Parkinsonism / Prolonged QT interval
ORGANIC DISORDERS
What are the differential dx for a patient with suspected delirium diagnosis
dementia
anxiety
thyroid disease
temporal lobe epilepsy
DEMENTIA
What is dementia?
What time frame is required in order to make a diagnosis?
Clinical neurodegenerative syndrome defined by progressive loss of higher mental function, affecting multiple cognitive domains with an impact on the general functioning of the patient
> 6m for diagnosis
DEMENTIA
What is mild cognitive impairement?
What is the timeline required for a review of a patient presenting with mild cognitive impairement?
Cognitive impairement without fucntional impairement
Review in 6m to 1 year
DEMENTIA
Where does subcortical dementia affect?
Name some examples
Basal ganglia
Thalamus
PD
Huntingtons
Alcohol related
DEMENTIA What are the differences between delirium and dementia? i) onset + deterioration ii)course iii) consciousness iv) sleep wake cycle v) other presentations
Delirium acute onset - reversible flucutating course altered level of consciousness altered sleep-wake cycle delusions/ illusions/ hallucinations
Dementia chronic lllness - irreversible progressive course consciousness preserved normal sleep wake cycle
DEMENTIA
What are some risk factors for dementia development?
Age > 65 family hx Gentics downs syndrome smoking diabetes obesity Head trauma - Repetitive injury (boxing) CVD
DEMENTIA
What is the gene associated with dementia?
Apoliprotein E-E4
DEMENTIA
Name some factors for dementia prevention
Healthy behaviours
- excericse
- diet
- low alcohol
- no smoking
Engaging in lesiure activities
Socially active
Cognitive active
DEMENTIA
What are some diangostic features of dementia?
Multiple cognitive deficits resulting in ADL impairement
- memory
- orientation
- language
- reasoning
Clear cosnisousness
BPSD
- insominia
- daytime drowsiness
- nocturnal restlesness
- depression / anxiety
DEMENTIA
What are some general investigations for dementia?
- Full Hx + collateral with full physical exam + MSE
- Check for reversible causes with confusion screen ± CXR ± CT head
DEMENTIA
Describe the ranges for no, moderate and severe cognitve imapirement scores in an MMSE
none = 24 - 30
Mod = 18 - 23
Severe < 17
DEMENTIA
What score on a ACE-III indicates dementia
<82 with abnormla scores in more than 2 domains
- attention
- orientation
- memory
- language
- visuospatial
- fluency
DEMENTIA
What investigations are invovled in a dementia screen?
FBC / U+E / LFT / CRP / TFT Thaimine B12 / Folate Syphillis serology Cortisol Glucose MRI - SDH / NPH
DEMENTIA
Name some potentially treatable causes of dementia?
Substance misuse Hypothyroid Hyperparathyroid Cushings Addisons Depression NPH Vit B12/Foalte def
DEMENTIA
What biological and psychological treatment can be used in dementia?
Bio
- Risperidone (agitation)
- Memantine (Aggression)
Psycho
- CBT (Depression)
- Art therapy
- Counselling
- mental stimulation eg: puzzles
DEMENTIA
Why is the use of risperidone not encouraged?
Increased risk of stroke
DEMENTIA
What social treatements can be used in dementia?
- OT assessment to remain independent (pendent, labels on cupboards, key safe, carers, handrails)
- Carers assesment
- Physio assessment
- Encourage family visits + photos
- Animal/pet therapy, music, arts + crafts
- Care plans + advanced directives before worsens
- Lasting power of attorney
- Need to iform DVLA
ALZHEIMERS
What is the pathophysiology of alzheimers?
Accumulation of
- Extracellular beta amyloid plaques
- Intracellular Tau containing neurofibrillary tangles
Leads to degeneration of cerebral cortex with cortical atrophy + loss of Ach
ALZHEIMERS
What condition has increased rates of alzheimers
Down’s syndrome - develop at 50
ALZHEIMER’S
What genes have been implicated to…
i) familial early-onset Alzheimer’s?
ii) late onset Alzheimer’s?
i) APP gene, presenilin 1 + 2 (autosomal dominant)
ii) Apolipoprotein E (ApoE)
ALZHEIMERS
Name some risk factors for alzheimers development?
Family hx Age - >65 Genetics - ApoE Low intelligence / education Depression CVD - HTN Diabetes Hypercholeterolaemia Smoking
ALZHEIMERS
Name a protective factor for alzheimers
High intelligence
ALZHEIMERS
What is the clinical presentation of alzheimers
4 A’s
Amnesia
- loss of STM
- poor disorientation about time
Aphasia / Dysphasia
- word finding problems
- speech muddles / disjointed
Apraxia
Inability to carry out skilled tasks despite normal motor function
- button clothes
- pick up pen
Agnosia
Failure to recognise people / items
Executive fucntion imapired
- planning
- visuospatial impairment
ALZHEIMERS
Name some non-cognitive presentations of alzheimers
Psychosis
- delsuions
- hallucinations
Mood
- depression
- anxiety
Behavioural
- apathy
- agitation
- wanderign
- aggression
ALZHEIMER’S DISEASE
On CT/MRI head in Alzheimer’s disease, what are the…
i) macroscopic pathological changes?
ii) microscopic or histological pathological changes?
i) Diffuse cerebral atrophy (shrunken brain), increased sulcal widening, enlarged ventricles
ii) Neuronal loss, neurofibrillary tangles, beta-amyloid plaques
ALZHEIMER’S DISEASE
What is the pharmacological management of Alzheimer’s?
slow rate of decline + allow functioning at higher level
- AChEi (donepezil, rivastigmine) for mild–mod
- NMDA antagonist (memantine) for mod–severe
VASCULAR DEMENTIA
What is vascualr dementia and what is it charecterised by?
What are the risk factors?
Subcortical dementia - cumilative effect of small multiple infarcts charecterised by a stepwise deterioration
CVA / TIA HTN DM Hypercholeterolaemia Smoking Hx of PVD IHD
VASCULAR DEMENTIA
What is the clinical presentation of vascular dementia?
Stepwise deterioration with short periods of stability then sudden decline
Specific sx - depends on location of focal brai damage
memory issues
focal neurologicla signs if caused by stroke eg:UMN signs
VASCULAR DEMENTIA
What is the management of vascualr dementia?
Prevent further decline Lifestyle changes - weight loss - healthy diet - smoking cessation - alcohol consumption decrease
Pharmacological
- atorvastatin
Optimise co-morbidities
- DM
- HTN
LEWY BODY DEMENTIA
What is lewy body dementia and what might it be confused with?
Presence of lewy bodies in basal ganglia and cerebral cortex
presents between 50-80y/o
Delirium
- fluctuating consciousness
- hallucinations
LEWY BODY DEMENTIA
How do differentiate between parkinsons disease and lewy body dementia?
dementia before movement signs - LBD
Movement before dementia signs = PD
LEWY BODY DEMENTIA
What is the clinical presentation of lewy body dementia?
fluctuating cognition visual hallucinations Parkinsonsism REM sleep disorder narrow based gait autonomic dysfunction - fluctuating BP - falls
LEWY BODY DEMENTIA
What is the management of LBD?
Conservative management
1st line - Rivastigme
last line - Memantine
Sleep disturbance
- clonazepam
LEWY BODY DEMENTIA
Why should antipsychotics be avoided in LBD pateints?
Irreversible parkinsoism
Impaired consciousness
NMS
LEWY BODY DEMENTIA
Name 1 effect of levodopa usage
Psychosis
FRONTOTEMPORAL DEMENTIA
What is the clinical presentation of FTD?
Behavioural chnages
- Disinhibition
- Withdrawal
- Emotional unconcern
- Behavioural stereotypies (humming)
executive imapirement
poor insight
FRONTOTEMPORAL DEMENTIA
What is the inheritence pattern for FTD?
What condition is FTD linked to?
AD
MND