Psych questions Flashcards
Describe the features of Section 2 (MHA)
Lasts for 28 days and is for a period of assessment
Can be instigated by a relative or approve mental health practitioner and 2 doctors
Features of Section 3 (MHA)
Lasts for 6 months and is intended for treatment
Instigated by relative, AMP and 2 doctors
Features of Section 4
Lasts 72 hours max and is intended for emergency assessment
1 doctor must say why a section 2 is not being used e.g. lack of staff
Section 5(2)
When pt is already on a hospital ward
Max of 72 hours
When 1 doctor is present
Outpatients/A&E do not count as wards
Section 5(4)
Pt is requiring detainment for a mental disorder
Max 6 hours
Can be instigated by a senior nurse
Define an obsession
An unwanted intrusive thought, image, or urge that repeatedly enters a person’s mine
Define a compulsion
Repetitive behaviours or mental acts that a person feels driven to perform
A compulsion can be either be overt and observable by others such as checking a door is locked
Or a covert mental act that cannot be observed such as repeating a certain phrase in one’s mind
RFs for OCD
FHx
Peak onset is between 10-20 years
Pregnancy/postnatal period
Hx of abuse, bulling, neglect
Give an example of severe OCD
A pt who spends >3 hours a day on their obsessions/compulsions
Has severe interference/distress and has very little control/resistance
Management of OCD if functional impairment is mild
Low-intensity psychological treatments
CBT including exposure and response prevention
If insufficient or can’t engage in psychological therapy then offer SSRI
Management of OCD if moderate functional impairment
Offer a choice of either SSRI or more intensive CBT including exposure and response prevention
Management of OCD if severe functional impairment
Refer to secondary care mental health team for assessment
Whilst awaiting assessment offer SSRI and CBT (including exposure and response prevention)
Once established how long should SSRIs be continued in a pt with OCD ?
12 months
What is the advice given if a clozapine dose is missed for more than 48 hours ?
Pt will need to re-titrate clozapine dose again slowly
Health checks for pt starting on antipsychotic medication
FBC, U&E, LFT
Lipids, weight
Fasting BG
Prolactin
BP
ECG
Cardiovascular risk assessment
What health checks are completed annually for pts on AP medication ?
FBC, U&E, LFTs
Lipids and weight
Fasting BG
Cardiovascular risk assessment
What type of medication is associated with sudden onset psychosis ?
Steroids e.g. prednisolone
Features of psychosis
Hallucinations (auditory, visual, sensational)
Delusions
Thought disorganisation e.g. alogia, tangentially, clanging or word salad
Associated features with psychosis
Agitation/aggression
Neurocognitive impairment e.g. memory, attention or executive function
Depression
Thoughts of self-harm
DD’s for psychotic symptoms
Schizophrenia - MC
Depression
Bi-polar
Puerperal psychosis
Brief psychotic disorder
Neurological conditions e.g. parkinson’s, huntingtons
Prescribed drugs e.g. corticosteroids
Illicit drugs e.g. cannabis
Between what ages is peak incidence of first episode of psychosis ?
15-30 years
Management for SAD
Same manner as mild depression
1st line psychological therapies
Follow up in 2 weeks to ensure that there has been no deterioration
2nd line SSRIs
Do not give sleeping tablets
What is the first line medication given for GAD ?
Sertraline
What is Parkinsonism ?
A side effect of AP medication e.g. chlorpromazine
Characterised by the presence of resting tremor, bradykinesia, rigidity and postural instability.
What is the pathophysiology of Parkinsonism ?
Due to the dopamine-blocking effects of these medications in the basal ganglia resulting in an imbalance between dopamine and ACh activity
Patients < 25 should be reviewed in how many weeks following SSRI treatment initiation ?
1 week
What is the key difference between mania and hypomania ?
Mania lasts for 7 days or more. Hypomania is usually 4 days or more
Psychotic symptoms occur only in mania
Mood stabilisers for bi-polar
Lithium
2nd line - sodium valproate
A patient is asked what they have eaten today. They begin by telling you a story about what they had for breakfast, then talks about their favorite cooking shows on tv, then about a time they were interviewed on a news problem and then explains that they had toast and jam for breakfast. What is this an example of ?
Circumstantiality
What is the definition of circumstantiality ?
Inability to answer a question without giving excessive unnecessary detail
What is tangentially ?
A thought disorder characterised by wandering from a topic without returning to it
What is a neologism ?
Where a new word is formed which might result from the combining of two words. Associated with thought disorders
What is clang association ?
When ideas are related to each other only by the fact that they sound similar or rhyme
What is word salad ?
Completely incoherent speech where words are strung together into nonsense sentences
What is knights move thinking ?
A severe type of loosening associations where there are unexpected and illogical leaps from one idea to another
Key feature of schizophrenia
What is a flight of ideas ?
A feature of mania
Where leaps from one topic to another occur with discernible links between them
What is preservation ?
Where repetition of ideas or words occurs despite an attempt to change a topic
What is echolalia ?
Repetition of someone eles’s speech including the questions that were asked
What is the MoA for TCAs ?
Inhibition of reuptake of neurotransmitters in the synaptic cleft increasing concentration and transmission of action potential
5-HT and NA
What is the pharmacological mechanism behind the SEs of TCAs ?
Affinity for histamine receptors - drowsiness
AChMRs - dry mouth, blurred vision, constipation and urinary retention
Adrenergic receptors - postural hypotension
Also lead to increasing of QT interval
Examples of TCAs
Amitriptyline - used in management of neuropathic pain and the prophylaxis of headache (both tension and migraine)
Lofepramine (lower incidence of toxicity in overdose)
Examples of sedating TCAs
Amitriptyline
Clomipramine
Dosulepin
Trazodone
Examples of less sedative TCAs
Imipramine
Lofepramine
Nortriptyline
What kind of side effects are more common with imipramine ?
AChM side effects are more common
Therefore, blurred vision + dry mouth + urinary retention is more common
What is a conversion disorder ?
A psychiatric condition where psychological stress is unconsciously manifested as physical, neurological symptoms
What is acute stress disorder ?
Occurs following a life-threatening experience
Similar features as PTSG such as hyperarousal, re-experiencing, avoidance and distress
However occurs between 3 days to 4 weeks post-traumatic experience
What is a somatisation disorder ?
Multiple physical symptoms present at least 2 years
Patient refuses to accept reassurance or negative test results
Illness anxiety disorder/hypochondriasis
Persistent belief in the presence of an underlying serious disease e.g. cancer
Patient refuses to accept reassurance or negative test results
What is a dissociative disorder ?
The process of separating off certain memories from normal consciousness
This contrasts with conversion disorders as it involves psychiatric symptoms such as amnesia, fugue, stupor
Dissociative identity disorder is the new term for multiple personality disorder
What is the risk of developing schizophrenia in monozygotic twin
50%
What is the risk of developing schizophrenia with parent who is effected
10-15%
What is the risk of developing schizophrenia in sibling who is effected
10%
What is the risk of developing schizophrenia in a pt with no FHx of the condition
1%
RFs for schizophrenia
FHx
Black Caribbean ethnicity
Migration
Urban environment
Cannabis use
When assessing a conversation disorder what is the name of a sign that would suggest the condition is psychological ?
Hoover’s sign
4 key features of PTSH and timescale
4 weeks post incident
Re-experiencing
Avoidance
Hyperarousal
Emotional numbing
None-key but associated features of PTSH
Depression
Drug or alcohol misuse
Anger
Unexplained physical symptoms
Management of PTSD
Watch and weight for mild symptoms lasting 4 weeks
Trauma-focused CBT or eye movement desensitisation and reprocessing (EMDR)
Drug treatment is not recommended as first line
If drugs are used then venlafaxine or SSRIs should be used
In severe cases then risperidone may be used
Acute dystonic reactions are seen most commonly with what type of medication ?
First generation (typical) APs
E.g. haloperidol
What is acute dystonic reactions
Characterized by involuntary contractions of muscles of the extremities, face, neck, abdomen, pelvis, or larynx in either sustained or intermittent patterns that lead to abnormal movements or postures
Give examples of dystonic reactions
Torticollis
Opisthotonus
Dysarthria
Oculogyric crisis
Common sized effects of atypical antipsychotics
DM
Dyslipidaemia
Osteoporosis
Weight gain
What is the mechanism of action of mirtazapine ?
Noradrenergic and specific serotonergic antidepressant (NsSSAs)
Increases the release of neurotransmitters by blocking alpha2 adrenoreceptors
2 common SEs for mirtazapine
Sedation
Increased appetite
What kind of medication is duloxetine ?
SSRI
What is Charles-Bonnet Syndrome ?
Visual hallucinations associated with eye disease
The most common hallucinations are faces, children and wild animals
Occurs in patients of increasing age
Risk factors for Charles-Bonnet ?
Advanced age
Peripheral visual impairment
Social isolation
Sensory deprivation
Early cognitive impairment
Most common ophthalmological conditions associated with Charles-Bonnet ?
1st - macular degeneration
2nd - glaucoma
3rd - cataract
What investigation should be organised for elderly patients with sudden onset psychosis ?
CT head to rule out organic causes
When do symptoms of alcohol withdrawal usually manifest ?
6-12 hours
When do alcohol withdrawal linked seizures usually occur ?
36 hours
When does delirium tremens usually occur post alcohol withdrawal ?
72 hours