PAST PAPERS - DMH Flashcards
(160 cards)
Cognitive behavioral therapy is an important part of the therapeutic management of the
condition. Define what is meant by CBT and discuss its major components, and then how
we would use it in the holistic therapeutic management of patients with OCD. (15)
COGNITIVE BEHAVIORAL THERAPY
Cognitive - our thoughts, beliefs and attitudes
Behavioral - what we do, how we act
Main idea is that our thoughts have an effect on out behaviors and conversely our behaviors on our thoughts, and they can interact to create cycles and patterns in our lives. These cycles can be positive and productive, or negative and make dealing with changes or life stressors more challenging.
The theory is that making a change in what we are thinking or doing can have a lasting impact on how we are feeling and change these cycles.
The goal of CBT is helping the patient develop and awareness of what they are thinking and how these thoughts influence their behaviors.
A specific area of focus in anxious thoughts and assumptions is encouraging the patient to ask themselves whether the thoughts they have are accurate to reality or not. Ask the patient how those thoughts influence their behaviors?
Identify the thoughts, evaluate the thoughts (is this accurate, what is the evidence) and then look at different strategies for behavior in response to these thoughts.
Why will one person have different thoughts and behaviors to another?
- They have different core beliefs - therefore the strategy is changing those core beliefs will ultimately end up changing your mood.
Negative core beliefs are grouped into three categories:
- Helpless Core Beliefs
- Unlovable Core Beliefs
- Worthless Core Beliefs
- About the World
- About other people
- Rules and Assumptions (also known as intermediate beliefs)
(Think about “I should…” “I must” and “If….., then …”)
If struggling to determine the core belief, can work backwards from the negative thought.
When patients have negative thoughts, ask the question “If this is true, what does this say or mean about me?” Continue asking this question until you end up with the core belief.
Mr Kay is a 75-year-old retired teacher who is a widow, and lives on his own. He has been
living with hypertension and diabetes mellitus (for the last 20-years) which are well controlled.
His daughter approaches you because she wants to place her father in an old age home, and
sell the house he currently lives in. She brings him to you for a medical and mental assessment
as required by the old age home.
a) In a clinical setting how would you evaluate Mr Kay’s competency to engage in selling his
property? (15)
b) After your assessment you come to the conclusion that Mr Kay has mild cognitive deficits.
During your assessment Mr Kay informs you that he wants to make amendments to his
existing will. How would you evaluate his testamentary capacity? (10)
(A)
COMPETENCE - ability to make autonomous, informed decisions that are consistent with the person’s own lifestyle and attitude and take the necessary action to put these decisions into effect.
A person is competent if they are able to:
1. understand the material information
2. make a judgement about the information in light of their values
3. Intend a certain outcome
4. Communicate freely their wishes to caregivers and investigators
There is lack of contractual capacity (which would be needed to sell a property) if at the time of the contract, the person has a mental illness or intellectual disability, and this illness or disability affected his/her understanding such that he/she did not know the nature and consequences of the transaction. It is task dependent - can have capacity for some tasks and not others.
COMPETENCE ASSESSMENT MNEMONIC:
SOCCOUR
S - Situation (does the person know, understand and remember the situation)
O - Options (is the person aware of their options)
C - Consequences (is the person aware of the consequences of their decision)
C - Consistency (does the person show consistency in their decisions, understanding and values)
O - Opinion (to get the opinion of those that know the person, collateral information)
U - Undue influence (is there reason to suspect that this person is under the influence of others)
R - Reasons (does the person give reasons for their decision)
(B)
DEFINITION OF CAPACITY deals with two key elements:
1. a person’s ability to assimilate relevant facts
2. appreciation or understanding of his/her situation as it relates to the facts
- Evaluation of testamentary capacity commonly involves a variety of mental health professionals including psychiatrist, psychologist, social worker, occupational therapist.
- collateral information needed - ADLS
- diagnosis and differential diagnoses
- evaluation of the severity of the condition
- determine the ability to perform the task
- having testamentary capacity requires greater mental capacity than for other contracts as by law, a person much have a “sound and disposing mind and memory”
- all adults are presumed to have testamentary capacity - those who challenge it need to demonstrate that the testator did not know the consequences of their conduct when executing a will.
Necessary Functions to Have testamentary capacity:
- understand nature of act
- understand and recollect nature, extent and situation of property
- remember and understand relations and those affected by the will
- understand the dispositions they are making
- know how elements above relate to form an orderly plan of property distribution
- no active symptoms of major mental illness
- no undue influence from other parties.
WHAT DOES THE DOCTOR ACTUALLY DO?
Before Death
- Full history and MSE
- Cognitive testing (MOCA, MMSE)
- Hospital records and previous investigations
- Collateral information regarding the facts about the estate
- Include in the report the testator’s awareness of the estate, current will and reasons for wanting to change it.
After Death
- hospital records and previous investigations
- full history and an MSE around the time of the will change if available
- videos of proof at the time of changing the will
- affidavit about the will.
How does one make an application for curatorship and what are the different types of curators the court may appoint?
- application is made to the high court to appoint a curator
- applicant is generally a family member but can be any interested party
- the application must be accompanied by affidavits from two medical practitioners - one a psychiatrist
The court is requested to address three aspects in its enquiry
1. to declare the person of unsound mind and incapable of managing his/her affairs
- to appoint curator ad litem (act on behalf, especially during legal proceedings - can also be appointed for minor)
- to appoint a curator bonis (financial affairs) or curator personae or both
A curator bonis may perform the following functions amongst others (usually a lawyer):
- Manage the maintenance or support of the relevant person;
- Purchase or acquire immovable property on behalf of the relevant person;
- Manage the relevant person’s business affairs; and
- Administer the relevant person’s estate or assets.
Curator personae - appointed to oversee the personal and wellness affairs of an incapacitated person, welfare, decision making regarding healthcare, accommodation and general well being.
a) Describe the characteristics of a panic attack. (6)
b) List five differential diagnoses for a panic attack. (5)
c) Differentiate a panic attack from a panic disorder. (4)
d) Discuss the treatment of a panic disorder. (10)
(a) A abrupt surge of intense fear or discomfort that reaches maximal intensity after 1-2 minutes and usually lasts for 10-20 minutes.
Surge can occur from a state of calm or from a state of anxiety.
A panic attack has both physical and psychological symptoms.
Must have 4 of the following symptoms: (STUDENTS FEAR 3Cs)
S - sweating
T - trembling/shaking
U - unsteadiness/dizziness
D - derealization/depersonalization
E -elevated heart rate, palpitations, pounding heart
N - nausea and abdominal discomfort
T - tingling sensation and numbness
S - shortness of breath and smothering
Fear of losing control, going crazy or dying.
3Cs - chest pains, choking, chills
Don’t include culture-specific symptoms: tinnitus, neck soreness, headache, uncontrollable screaming or crying.
(b) Heart attack, gastritis, asthma attack, COPD exacerbation, stimulant intoxication, hyperthyroidism.
(c)
- Panic disorder is a lot less prevalent than the occurrence of a panic attack
- most common in females
- generally, follows a chronic relapsing remitting course
CRITERION A - characterized by recurrent unexpected panic attacks
CRITERION B - at least one of the attacks if followed by at least one month of
1. persistent concern or worry about additional panic attacks or their consequences
AND/OR/
2. significant maladaptive change in behavior related to these attacks - avoidance type.
CRITERION C - disturbance not attributable to physiological effects of a substance or medical condition
CRITERION D - disturbance not better explained by another mental disorder
(d)
PHARMA - SSRIs - inhibit amygdala hyperactivity thus modulating the conditioned fear network. Also decrease noradrenergic action which relieves some symptoms such as palpitations.
Second line - different SSRI or SNRI, TCAs, adding a benzodiazepine in the short term for acute rescue of panic attacks when they occur.
Only switch to second line when the initial drug dosage has been optimized and adherence to treatment established, assessment of comorbid conditions (psych and med) performed.
PSYCHO - CBT is mainstay of treatment. Also available are relaxation therapies and desensitization therapy.
Despite years of warnings about the hazards of prescribing benzodiazepines, these drugs
continue to be used at a higher rate than what is considered appropriate. List some of
the recognized good practices you would advise to Primary Health Care doctors when
prescribing benzodiazepines. (8)
- benzodiazepines should not be prescribed as anxiolytics or hypnotics for longer than 4 weeks to avoid dependence, tolerance and severe withdrawal symptoms
- intermittent use (not every day) at the lowest possible is also recommended
- should not be prescribed in the elderly population
- careful tapering of those who are already on long term benzodiazepine is recommended. Taper over at least a 10-week period but possibly much longer, case dependent.
- for those on shorter acting benzodiazepines, an approach to tapering and stopping could be to cross taper to diazepam which has a longer half-life and therefore associated with less severe withdrawal symptoms when eventually stopped.
- patients should be carefully counselled on the risk of benzodiazepines - increased falls, dangerous to operate machinery, sedation, accidental overdose if used in excess, long term risk of cognitive impairment, delirium in elderly patients, withdrawal on stopping.
- long acting benzos are always a better choice to short acting
- recommends that benzos should not be used as mainstay of treatment in GAD, panic disorder or social phobia except for short term use in acute crisis states.
- because of the addictive nature of benzos, there is a shift to the use of Z-drugs for the treatment of insomnia or alternative methods
What is the MOA of benzodiazepines?
- Bind to GABA Type A which is a major receptor implicated in inhibition in the CNS and sedation
- These receptors are ligand-gated chloride ion channels
- When GABA binds to the receptors, it increases the amount of chloride current generated by the receptor
- Benzos increase the frequency of the channel opening which augments the inhibitory effect of the GABA
Metabolized by CYP3A4
What are some factors associated with more severe withdrawal symptoms in those treated with benzodiazepines?
- Brain damage
- Alcohol addiction
- EEG abnormalities
- abrupt discontinuation after regular use
- longer duration of use prior to discontinuation
- higher doses
- shorter half-life
Who is the curator ad litem for state patients?
The Department of Public Prosecutions
What is involved in a curatorship assessment?
Full history, MSE and applicable investigations to provide a diagnosis.
Investigations include MMSE and neuro-psychological evaluation if required.
An OT may be required to assess occupational aspects of the persons functioning.
If collateral information is deemed insufficient, or if family discontent threatens to hamper
proceedings, social worker intervention is recommended.
Important to establish the persons general level of functioning.
In addition, assess for financial competence:
◦ Knowledge of income.
◦ Knowledge of expenses.
◦ Ability to handle everyday financial transactions (serial 7’s, balance cheques, counting change,
paying bills).
◦ Ability to delegate financial wishes.
Compare and contrast impairment vs disability
Impairment is the alteration of normal functional capacity due to a disease, and is assessed
by medical means after a diagnosis has been established, and appropriate and optimal
treatment applied.
In practical terms, impairment assessment entails examining the diagnosis and current and
future treatment options before determining on medical grounds which functions the
person is still able to do and which not.
Occupational therapists play an important role prior to taking a final decision regarding
extent of impairment.
Disability is the alteration of capability to meet the personal, social or occupational
demands due to an impairment, and is assessed by non-medical means.
Assessing disability entails assessing the extent of a person’s impairment in conjunction
with their job description, policy disability clause condition and personal factors such as
education, experience etc.
Disability assessment is a legal and not a medical decision, taken by a panel of experts
including a:
◦ medical advisor,
◦ legal advisor,
◦ claims consultant.
The psychiatrist treating the patient does not usually possess all the information, and is
therefore in no position to express an opinion on disability.
The psychiatrist’s function is to assess the areas of impairment and to indicate whether it is
permanent or not, while the actual decision regarding disability is taken by a separate panel of assessors
Miss X, a 48-year-old female presents to the emergency department with a 1-week history of
acute confusion, disorientation, and disruptive and disorganized behavior. She is known to
be HIV positive, with a CD4 count of 271. She was started on antiretroviral treatment two
months ago. She has no previous psychiatric history. There is no history of substance use,
and no family history of a mental illness.
a) List the differential diagnoses for her acute symptoms and motivate (factor for and
against) each diagnosis. (8)
Her family reports that she has gradually become slower and clumsier in the last 2-years and
is starting to become forgetful. She was fired from her clerical job last year for poor work
performance.
b) List the four most likely differential diagnoses for her more long-standing neuropsychiatric
symptoms. (4)
c) Discuss the use of antipsychotics in patients with HIV. (13)
a)
In this case:
- CNS infection - TBM, CCM - possibly with immune reconstitution syndrome
- Space occupying lesion - possible tuberculoma
- Side effect of HAART therapy
- Organic psychiatric disease
- HIV effects on the CNS - HIV dementia
Factors Causing Psychiatric Symptoms in PLWH (people living with HIV)
Primary psychiatric disorders
Neurobiological changes caused by HIV in the CNS
Other infections or CNS tumours
Antiretroviral drugs and other medical treatments
Alcohol or substance misuse
Adverse psychosocial factors (stigma)
b)
Mild Neurocognitive Disorder Due to HIV infection
Major depressive disorder
Major neurocognitive disorder due to HIV infection
Other CNS infection or space occupying lesion??
c)
General Prescribing Principles
- start with low dose and titrate to tolerability and effect
- select simplest dosing regimen possible
- select agent with fewest side effects
- MDT preferably
- those infected with HIV are more susceptible to EPSEs due to HIV invasion of the basal ganglia - therefore SGAs such as quetiapine, risperidone and aripiprazole have been suggested as first line in psychosis not due to dementia and delirium.
- Monitoring of metabolic side effects and QT prolongation may be more important in those on APs and HAART
- those PLWH who have psychiatric disorders such as NCDs, SCZ or MDD may have worse compliance to both HAART and psychotropic medications. Therefore, greater need to support compliance.
- Escitalopram and Citalopram have lower risk of pharmacokinetic interactions in those on HAART (with ECG monitoring)
- Mirtazapine may be good choice in those patients who are wasted and also those with comorbid methamphetamine use
- TCAs and MAOIs are not recommended
- PLWH are more sensitive to side effects of mood stabilizers such as neurotoxicity and lithium, especially if they have neurocognitive dysfunction. Be aware of possible renal impairment due to HIV. Lithium should be avoided in advanced HIV disease.
- Carbamazepine should be avoided as drug-drug interactions are significant.
- Valproate can be an alternative but close monitoring required due to risk of hepatotoxicty and other drug drug interaction. Best avoided in those on other hepatotoxic drugs - nevirapine, rifampicin. Mood stabilizing antipsychotics are good options in mood disorders.
- Secondary Mania (“HIV mania”) - reports of secondary mania typically occurring in advanced illness such as HIV-associated neurocognitive disorders or CNS opportunistic infections. May respond to SGAs.
Polypharmacy has serious potential risks and increases the side effect burden both
acutely and over the long term. Discuss strategies you would employ to limit
polypharmacy and over-prescribing during the maintenance phase of treating a severe
mental illness. (9)
Long-acting Injectable Antipsychotics (LAI) were developed in response to high rates of
poor adherence to oral formulations. Briefly discuss.
i) Advantages of LAIs. (4)
ii) Limitations of LAIs. (4)
A 20-year-old female comes to see you after failing her final examinations. She reports feeling
sad and lonely, after recently breaking up with her boyfriend. During the interview you find her
to be very tearful. You make a diagnosis of Major Depressive Disorder (MDD).
a) Tabulate the clinical features associated with Major Depressive Disorder under the two
different categories i.e. Neurovegetative and Other. (8)
b) Give the 1st line pharmacotherapy you would prescribe, including dose ranges, duration
of treatment and the three most common side-effects associated with this drug. (6)
c) Discuss how you would differentiate between MDD and grief. (11)
A 9-year-old boy who has been continent of urine since the age of 3-years has now started
wetting the bed. His father has lost his job 2-months ago and he has a 15-year-old sister who
has been caught smoking cannabis at school. You are the GP for this family and the boy has
been brought to your practice as his parents are very frustrated by his bedwetting.
a) Discuss how you would do an assessment on any child presenting with enuresis. (10)
b) Discuss the management of the child in the case scenario above. (15)
You are required to assess a 24-year-old woman who was admitted overnight after taking an
overdose of “sleeping pills”, which she had taken subsequent to having “a few drinks”, after
being told that her boyfriend was seen with another woman. You notice a number of scars on
her wrists.
a) Describe what factors you would consider in doing a suicide risk assessment. (10)
b) How would you assess whether she has an alcohol use disorder? (5)
c) List 5 features of borderline personality disorder. (5)
d) She denies that the scars on her wrists were due to suicide attempts, but says that she
sometimes feels an urge to hurt herself. Briefly discuss the significance of this with
regards to borderline personality disorder. (5)
Mr A, a 24-year-old patient known with schizophrenia comes to see you in the casualty
department. He reports that he was charged with theft after stealing a bicycle and is worried
that he will be sentenced to jail. He says he stole the bicycle as the voices told him to do so.
He requests admission to hospital (it is clear he hopes this will prevent him from going to jail).
According to his previous notes he always has residual psychotic symptoms on follow up,
despite an adequate dose of Clozapine.
a) Discuss which options are available for admission under the Mental Health Care Act
(MHCA) and the factors that should be considered when doing so. Motivate the form of
admission required for this patient. (10)
b) Discuss the ethical principles, as they apply to this case, under the following headings
i) Beneficence.
ii) Non-maleficence.
iii) Autonomy.
iv) Justice. (15)
A 50-year-old recently divorced man presents with major depression. This is his first
presentation to psychiatry. There is a family history of two uncles having committed suicide.
His marriage disintegrated after the death of his son in a motorcycle accident. He bought his
son the motor cycle for his eighteenth birthday present. His son died a week after his birthday.
He lives alone and has a very stressful job as an auditor.
a) How would you assess for suicidal risk in this patient? (10)
b) What would be your bio-psycho-social clinical management of this patient? (15)
With regard to cannabis use and psychotic disorders:
a) Explain the biological mechanisms underlying the association between cannabis and
psychosis. (5)
b) Specify risk factors that may increase the likelihood of developing schizophrenia after
cannabis use. (5)
c) Describe the clinical course (acute and long-term) of cannabis use. Include a description
of the clinical symptoms of intoxication and withdrawal in the answer. (10)
d) Discuss the role of cannabis as a potential cause of schizophrenia. (5)
a) A 30-year-old lady presents to the emergency department with a manic episode. She is
aggressive and she wants to jump from the hospital roof as she believes that she can fly.
Her husband tells you that she is known with bipolar I disorder and that she was doing
very well until she stopped her treatment four months ago when they decided to start a
family. She is now 6 weeks pregnant. He demands that you put her back on the
medication she was on before: Sodium Valproate 500mg twice daily and Olanzapine
10mg daily. Describe your approach to the assessment and acute management of this
patient. (15)
b) Write short notes on the use of the following medication in pregnancy:
i) Lithium. (5)
ii) Sodium Valproate. (5)
A 55-year-old male is accompanied by his family to the emergency department with a history
of sudden onset of confusion and inappropriate behaviour. He is extremely disruptive and
agitated. It is difficult to contain him to be evaluated. He is wandering around the room, shouting
and insulting patients waiting to be seen for no apparent reason. Attempts to calm him down
are met with physical aggression especially toward furniture in the cubicle. He is suspicious of
everybody around him and appears to be responding to visual hallucinations. It is difficult to
obtain a coherent history as well as conduct a mental state examination due to impairment in
his attention and distractibility. He also appears to be disoriented to time and place. Your
colleague advises you to admit him to the psychiatric ward for treatment of his psychosis. Upon
reassessing the patient, he is found to be asleep and you have difficulty rousing him even
though he did not receive any sedation in the interim and there was no history of substance
use prior to admission to the hospital.
a) The information in the case is suspicious of which DSM 5 diagnosis? (2)
b) What are the DSM 5 criteria of the above condition? (10)
c) Do you agree with the colleague’s advice to admit the patient to the psychiatric ward for
treatment of his psychosis? Substantiate your answer. (3)
d) You realise that appropriate management of the condition requires further investigation
into the underlying cause. Collateral information and a thorough physical examination
yield no definitive answer. What special investigations would you consider essential for
the work-up of the patient and substantiate the reason for the investigations? (10)
An 11-year-old child presents with a history of disruptive and aggressive behaviour; and poor
school performance.
a) What information would you seek on history? (7)
b) Discuss your differential diagnosis. (8)
c) Outline your management of this patient if you make a diagnosis of Attention Deficit
Hyperactivity Disorder. (10)
A 77-year-old male is brought to you by his family. He has no previous psychiatric history; and
besides hypertension and type II diabetes mellitus, he has no other significant medical history.
After assessing him, you suspect he may have a neurocognitive disorder due to vascular
disease.
a) Tabulate the differences between mild and major neurocognitive disorder. (5)
b) List the cognitive domains that may be affected, and for each, describe the possible
complaints the family may report on history that would indicate impairment in that domain.
(9)
c) Discuss the role of pharmacotherapy in the management of this patient. (11)
Write short notes on the following:
a) Mental health services are delivered at 3 levels namely primary, secondary and tertiary
levels. What are the components of primary health care and what are the staff
complements of the components? (15)
b) Confidentiality refers to the medical premise that binds the medical practitioners to keep
secret all information divulged by patients during a doctor-patient interaction. When are
you allowed to breach doctor-patient confidentiality in a mental health setting? (5)
c) What is your involvement as a general practitioner in the clinical management of persons
referred by the Criminal Justice system? (5)