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  • Question 1 - A 70-year-old homeless man is admitted to the hospital for osteomyelitis resulting from...

    Incorrect

    • A 70-year-old homeless man is admitted to the hospital for osteomyelitis resulting from a diabetic foot ulcer. During his stay, it becomes evident that he is experiencing significant memory impairment. Despite being asked about the events of the day, he tells a believable story that is entirely different from what actually occurred. There is no indication that he is intentionally deceiving the medical staff. He is also unaware of his memory impairment and denies having any issues with his memory. According to his family, this memory impairment has been present for the past 5-6 months. He has a history of excessive alcohol consumption spanning 45 years. What is the most probable cause of his memory deficits?

      Your Answer: Dementia with Lewy bodies

      Correct Answer: Korsakoff's syndrome

      Explanation:

      Diagnosis of Korsakoff’s Syndrome

      The patient’s symptoms of anterograde amnesia, confabulation, lack of insight, and chronic alcoholism strongly suggest a diagnosis of Korsakoff’s syndrome. Delirium is unlikely as the symptoms have persisted for a prolonged period. Additionally, there are no indications of parkinsonism, visual hallucinations, or fluctuations in conscious state, which are characteristic of dementia with Lewy bodies. The absence of a depressed mood or anhedonia also rules out the possibility of depression. Wernicke’s encephalopathy, which is characterized by confusion, ataxia, and ophthalmoplegia, is also not a likely diagnosis.

      In summary, the combination of symptoms exhibited by the patient is consistent with Korsakoff’s syndrome, a neurological disorder caused by thiamine deficiency often associated with chronic alcoholism. This diagnosis highlights the importance of addressing alcoholism and ensuring proper nutrition to prevent the development of this debilitating condition.

    • This question is part of the following fields:

      • Psychiatry
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  • Question 2 - A 27-year-old man presents with a 6-month history of depressed mood. He reports...

    Incorrect

    • A 27-year-old man presents with a 6-month history of depressed mood. He reports feeling fatigued and having suicidal thoughts on a daily basis. His appearance is disheveled and he has made multiple suicide attempts in the past few months. The psychiatrist decides to initiate electroconvulsive therapy (ECT) for his depression, scheduled to begin in a week. The patient is currently taking 100 mg of sertraline daily. What is the appropriate course of action regarding his medication prior to ECT treatment?

      Your Answer: Switch sertraline to citalopram

      Correct Answer: Reduce the sertraline daily dose

      Explanation:

      Before commencing ECT treatment, it is important to reduce the dosage of antidepressant medication, but not to stop it completely. The recommended approach is to gradually decrease the dosage to the minimum level. In some cases, an increased dosage of antidepressants may be added towards the end of the ECT course. It is not advisable to increase the dosage or discontinue the medication altogether. Switching to an alternative psychiatric drug, such as another SSRI or lithium, is also not recommended as it can be risky before ECT treatment.

      Electroconvulsive therapy (ECT) is a viable treatment option for patients who suffer from severe depression that does not respond to medication, such as catatonia, or those who experience psychotic symptoms. The only absolute contraindication for ECT is when a patient has raised intracranial pressure.

      Short-term side effects of ECT include headaches, nausea, short-term memory impairment, memory loss of events prior to the therapy, and cardiac arrhythmia. However, these side effects are typically temporary and resolve quickly.

      Long-term side effects of ECT are less common, but some patients have reported impaired memory. It is important to note that the benefits of ECT often outweigh the potential risks, and it can be a life-changing treatment for those who have not found relief from other forms of therapy.

    • This question is part of the following fields:

      • Psychiatry
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  • Question 3 - A 45-year-old woman is brought in by her daughter because ‘she is acting...

    Correct

    • A 45-year-old woman is brought in by her daughter because ‘she is acting wild again’. She drinks moderately about once a week. She is not sleeping much, talks incessantly about plans to travel the world and has made many impulsive and irrational purchases. She reports hearing voices but refuses to discuss this issue when questioned by the admitting psychiatrist. She begins a task but does not complete it, all the while making lists of things to be done. She has been starting tasks and not finishing them. She had a similar episode 3 years ago. She also has depressive episodes several times over the last few years and recovered in between them.
      What is the most likely underlying diagnosis?

      Your Answer: Bipolar, manic, with mood-congruent psychotic features

      Explanation:

      Understanding Psychotic Disorders: Differential Diagnosis

      Psychotic disorders are a group of mental illnesses characterized by the presence of psychotic symptoms such as hallucinations, delusions, and disorganized thinking. However, differentiating between these disorders can be challenging. Here are some possible diagnoses for a patient presenting with manic and psychotic symptoms:

      Bipolar, manic, with mood-congruent psychotic features: This diagnosis is appropriate for a patient with both manic symptoms and mood-congruent psychotic features. The patient’s lack of insight is characteristic of either mania or psychosis. The need to get a history from a third party is typical. What distinguishes this from schizophrenia is that the patient appears to have a normal mood state.

      Substance-induced psychosis: The use of substances in this scenario is far too little to account for the patient’s symptoms, ruling out psychosis secondary to substance abuse.

      Schizophreniform disorder: This diagnosis is appropriate for a patient with symptoms of schizophrenia of <6 months' duration. Schizophrenia, paranoid type: This diagnosis is appropriate for a patient with symptoms for >6 months and multiple psychotic symptoms such as hallucinations, bizarre delusions, and social impairment.

      Schizoaffective disorder: This diagnosis is appropriate for a patient with both mood disorder and schizophrenic symptoms. However, the patient in this scenario is not expressing enough schizophrenic symptoms to establish a diagnosis of schizoaffective disorder.

      In conclusion, accurate diagnosis of psychotic disorders requires careful evaluation of the patient’s symptoms, history, and social functioning. A thorough understanding of the differential diagnosis is essential for effective treatment and management of these complex conditions.

    • This question is part of the following fields:

      • Psychiatry
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  • Question 4 - A 50-year-old woman arrives at the emergency department complaining of palpitations, dizziness, and...

    Incorrect

    • A 50-year-old woman arrives at the emergency department complaining of palpitations, dizziness, and lightheadedness. Upon conducting an ECG, torsades de pointes is observed. Which medication is the most probable cause of the cardiac anomaly?

      Your Answer: Sertraline

      Correct Answer: Citalopram

      Explanation:

      Citalopram, an SSRI used to treat major depressive disorder, has been identified as the most likely to cause QT prolongation and torsades de pointes. In 2011, the MHRA issued a warning against its use in patients with long-QT syndrome. While fluoxetine and sertraline can also cause prolonged QT, citalopram is more frequently associated with this side effect. Gentamicin, a bactericidal antibiotic, does not appear to cause QT prolongation or torsades de pointes. Although sertraline is another SSRI that can cause prolonged QT, citalopram remains the most concerning in this regard.

      Selective serotonin reuptake inhibitors (SSRIs) are commonly used as the first-line treatment for depression. Citalopram and fluoxetine are the preferred SSRIs, while sertraline is recommended for patients who have had a myocardial infarction. However, caution should be exercised when prescribing SSRIs to children and adolescents. Gastrointestinal symptoms are the most common side-effect, and patients taking SSRIs are at an increased risk of gastrointestinal bleeding. Patients should also be aware of the possibility of increased anxiety and agitation after starting a SSRI. Fluoxetine and paroxetine have a higher propensity for drug interactions.

      The Medicines and Healthcare products Regulatory Agency (MHRA) has issued a warning regarding the use of citalopram due to its association with dose-dependent QT interval prolongation. As a result, citalopram and escitalopram should not be used in patients with congenital long QT syndrome, known pre-existing QT interval prolongation, or in combination with other medicines that prolong the QT interval. The maximum daily dose of citalopram is now 40 mg for adults, 20 mg for patients older than 65 years, and 20 mg for those with hepatic impairment.

      When initiating antidepressant therapy, patients should be reviewed by a doctor after 2 weeks. Patients under the age of 25 years or at an increased risk of suicide should be reviewed after 1 week. If a patient responds well to antidepressant therapy, they should continue treatment for at least 6 months after remission to reduce the risk of relapse. When stopping a SSRI, the dose should be gradually reduced over a 4 week period, except for fluoxetine. Paroxetine has a higher incidence of discontinuation symptoms, including mood changes, restlessness, difficulty sleeping, unsteadiness, sweating, gastrointestinal symptoms, and paraesthesia.

      When considering the use of SSRIs during pregnancy, the benefits and risks should be weighed. Use during the first trimester may increase the risk of congenital heart defects, while use during the third trimester can result in persistent pulmonary hypertension of the newborn. Paroxetine has an increased risk of congenital malformations, particularly in the first trimester.

    • This question is part of the following fields:

      • Psychiatry
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  • Question 5 - A 30-year-old woman, with a history of hearing voices, was brought to the...

    Incorrect

    • A 30-year-old woman, with a history of hearing voices, was brought to the Emergency Department by her family. She described the voices as telling her to kill her father as ‘he has the devil in him’. She also reported noting her intelligence being tapped through the Internet by a higher power. This has been going on for the past 6 months. Her family denies either depression or manic episodes. The patient was admitted to an inpatient Psychiatry Unit and started on haloperidol for her symptoms, after an evaluation and diagnosis of schizophrenia. Twelve hours after initiation of therapy, the patient started to have stiffness in the neck muscles and spine. Physical examination revealed muscular spasms in the neck and spine, a temperature of 37.2 °C, blood pressure 125/70 mmHg and a pulse of 80 bpm.
      What is the most likely diagnosis?

      Your Answer: Serotonin syndrome

      Correct Answer: Acute dystonia

      Explanation:

      Complications of Haloperidol: Acute Dystonia, Neuroleptic Malignant Syndrome, Serotonin Syndrome, and Meningitis

      Haloperidol is an anti-psychotic medication commonly used to treat schizophrenia. However, it can also cause various complications. Acute dystonia is a condition where the patient experiences muscle spasms in different muscle groups, which can occur shortly after taking haloperidol. Treatment for acute dystonia involves administering anticholinergics.

      Neuroleptic malignant syndrome is another complication that can occur as a result of taking anti-psychotic medication, particularly high-potency ones like haloperidol. Symptoms include abnormal vital signs, such as high fever, and treatment involves discontinuing the medication and managing symptoms with cooling measures and medications like dantrolene or bromocriptine.

      Serotonin syndrome is a condition that can occur when a patient takes multiple doses or an overdose of medications like selective serotonin reuptake inhibitors (SSRIs), serotonin-norepinephrine reuptake inhibitors (SNRIs), or serotonin agonists like sumatriptans. Symptoms include muscular twitching, agitation, confusion, hyperthermia, sweating, hypertension, tachycardia, and diarrhea.

      Meningitis, on the other hand, is not a complication of haloperidol. It is an inflammation of the protective membranes surrounding the brain and spinal cord, usually caused by a bacterial or viral infection.

      Finally, malignant hyperthermia is a condition that can manifest with similar symptoms to neuroleptic malignant syndrome, but it usually occurs during anesthesia administration and is caused by an inherited autosomal dominant disorder of the ryanodine receptor gene in the skeletal muscle. Treatment involves using dantrolene and providing supportive care.

    • This question is part of the following fields:

      • Psychiatry
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  • Question 6 - Which of the following interventions is most likely to be beneficial for a...

    Incorrect

    • Which of the following interventions is most likely to be beneficial for a patient with early-onset schizophrenia?

      Your Answer: Supportive psychotherapy

      Correct Answer: Cognitive behavioural therapy

      Explanation:

      Management of Schizophrenia: NICE Guidelines

      Schizophrenia is a complex mental disorder that requires careful management. In 2009, the National Institute for Health and Care Excellence (NICE) published guidelines on the management of schizophrenia. According to these guidelines, oral atypical antipsychotics should be the first-line treatment for patients with schizophrenia. Additionally, cognitive behavioural therapy should be offered to all patients to help them manage their symptoms and improve their quality of life.

      It is also important to pay close attention to cardiovascular risk-factor modification in patients with schizophrenia. This is because schizophrenic patients have high rates of cardiovascular disease, which is linked to antipsychotic medication and high smoking rates. Therefore, healthcare providers should work with patients to modify their lifestyle habits and reduce their risk of developing cardiovascular disease.

      Overall, the NICE guidelines provide a comprehensive approach to managing schizophrenia. By following these guidelines, healthcare providers can help patients with schizophrenia achieve better outcomes and improve their overall health and well-being.

    • This question is part of the following fields:

      • Psychiatry
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  • Question 7 - A 55-year-old man with a history of paranoid schizophrenia experiences a recurrence of...

    Correct

    • A 55-year-old man with a history of paranoid schizophrenia experiences a recurrence of symptoms due to irregular medication intake, leading to his admission under section 2 of the Mental Health Act following a formal mental state assessment. He had been taking Risperidone orally once daily for several years, which had effectively stabilized his mental state while living in the community. Considering his non-adherence, what treatment option would be most appropriate for this individual?

      Your Answer: Switching to a once monthly IM anti-psychotic depo injection

      Explanation:

      Patients who struggle with taking their antipsychotic medication as prescribed may benefit from receiving a once monthly intramuscular depo injection. It is important to maintain a stable mental state and overall well-being for these patients, and switching medications can increase the risk of relapse and recurring symptoms. The goal is to provide the least restrictive treatment possible and minimize hospitalization time as outlined by the Mental Health Act. While daily visits from a home treatment team to administer medication may be a temporary solution, it is not a sustainable long-term option. Similarly, a once-daily intramuscular injection may not be practical or feasible for the patient.

      Atypical antipsychotics are now recommended as the first-line treatment for patients with schizophrenia, as per the 2005 NICE guidelines. These medications have the advantage of significantly reducing extrapyramidal side-effects. However, they can also cause adverse effects such as weight gain, hyperprolactinaemia, and in the case of clozapine, agranulocytosis. The Medicines and Healthcare products Regulatory Agency has issued warnings about the increased risk of stroke and venous thromboembolism when antipsychotics are used in elderly patients. Examples of atypical antipsychotics include clozapine, olanzapine, risperidone, quetiapine, amisulpride, and aripiprazole.

      Clozapine, one of the first atypical antipsychotics, carries a significant risk of agranulocytosis and requires full blood count monitoring during treatment. Therefore, it should only be used in patients who are resistant to other antipsychotic medication. The BNF recommends introducing clozapine if schizophrenia is not controlled despite the sequential use of two or more antipsychotic drugs, one of which should be a second-generation antipsychotic drug, each for at least 6-8 weeks. Adverse effects of clozapine include agranulocytosis, neutropaenia, reduced seizure threshold, constipation, myocarditis, and hypersalivation. Dose adjustment of clozapine may be necessary if smoking is started or stopped during treatment.

    • This question is part of the following fields:

      • Psychiatry
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  • Question 8 - A 28-year-old man presents to his GP with ongoing sleep issues due to...

    Incorrect

    • A 28-year-old man presents to his GP with ongoing sleep issues due to tension in his relationship with his girlfriend. He feels she is distant and suspects she is spending time with her ex-boyfriend who works in the same office. Upon further questioning, he reveals a history of feeling uninterested in past relationships and struggles with mood swings. He expresses feeling alone in the world and that even his friends are against him. Although he self-harms, he denies any suicidal thoughts. A referral to psychiatry leads to a diagnosis of borderline personality disorder. What is the most appropriate treatment for this patient?

      Your Answer: Cognitive behavioural therapy (CBT)

      Correct Answer: Dialectical behaviour therapy (DBT)

      Explanation:

      Dialectical behaviour therapy (DBT) is an effective treatment for borderline personality disorder, as it is specifically designed to help individuals who experience intense emotions. Cognitive behavioural therapy (CBT) is not a targeted therapy for personality disorder patients and is more beneficial for those with depression or anxiety-related conditions. Exposure and response prevention therapy (ERP) is a treatment option for patients with obsessive-compulsive disorder, while eye movement desensitisation and reprocessing therapy (EMDR) is a treatment option for patients with post-traumatic stress disorder.

      Personality disorders are a set of personality traits that are maladaptive and interfere with normal functioning in life. It is estimated that around 1 in 20 people have a personality disorder, which are typically categorized into three clusters: Cluster A, which includes Odd or Eccentric disorders such as Paranoid, Schizoid, and Schizotypal; Cluster B, which includes Dramatic, Emotional, or Erratic disorders such as Antisocial, Borderline (Emotionally Unstable), Histrionic, and Narcissistic; and Cluster C, which includes Anxious and Fearful disorders such as Obsessive-Compulsive, Avoidant, and Dependent.

      Paranoid individuals exhibit hypersensitivity and an unforgiving attitude when insulted, a reluctance to confide in others, and a preoccupation with conspiratorial beliefs and hidden meanings. Schizoid individuals show indifference to praise and criticism, a preference for solitary activities, and emotional coldness. Schizotypal individuals exhibit odd beliefs and magical thinking, unusual perceptual disturbances, and inappropriate affect. Antisocial individuals fail to conform to social norms, deceive others, and exhibit impulsiveness, irritability, and aggressiveness. Borderline individuals exhibit unstable interpersonal relationships, impulsivity, and affective instability. Histrionic individuals exhibit inappropriate sexual seductiveness, a need to be the center of attention, and self-dramatization. Narcissistic individuals exhibit a grandiose sense of self-importance, lack of empathy, and excessive need for admiration. Obsessive-compulsive individuals are occupied with details, rules, and organization to the point of hampering completion of tasks. Avoidant individuals avoid interpersonal contact due to fears of criticism or rejection, while dependent individuals have difficulty making decisions without excessive reassurance from others.

      Personality disorders are difficult to treat, but a number of approaches have been shown to help patients, including psychological therapies such as dialectical behavior therapy and treatment of any coexisting psychiatric conditions.

    • This question is part of the following fields:

      • Psychiatry
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  • Question 9 - The risk of developing schizophrenia if one monozygotic twin is affected is approximately:...

    Correct

    • The risk of developing schizophrenia if one monozygotic twin is affected is approximately:

      Your Answer: 50%

      Explanation:

      Understanding the Epidemiology of Schizophrenia

      Schizophrenia is a psychotic disorder that affects a significant portion of the population. The strongest risk factor for developing this condition is having a family history of the disorder. Individuals with a parent who has schizophrenia have a relative risk of 7.5. Additionally, monozygotic twins have a 50% chance of developing schizophrenia, while siblings have a 10% chance. In contrast, individuals without relatives with schizophrenia have a 1% chance of developing the disorder.

      Aside from family history, other factors can increase the risk of developing schizophrenia. Black Caribbean ethnicity has a relative risk of 5.4, while migration and living in an urban environment have relative risks of 2.9 and 2.4, respectively. Cannabis use also increases the risk of developing schizophrenia, with a relative risk of 1.4.

      Understanding the epidemiology of schizophrenia is crucial in identifying individuals who may be at risk of developing the disorder. By recognizing these risk factors, healthcare professionals can provide early interventions and support to prevent or manage the onset of schizophrenia.

    • This question is part of the following fields:

      • Psychiatry
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  • Question 10 - A 20-year-old man with moderate learning difficulty visits your clinic with his father....

    Correct

    • A 20-year-old man with moderate learning difficulty visits your clinic with his father. His father complains that he has trouble sleeping at night and frequently wakes up, disrupting his own sleep and causing him to be excessively drowsy during the day. He frequently takes a nap in the late afternoon, which is impacting his ability to participate in local community services. They have already attempted conventional sleep hygiene recommendations. Given the history of learning difficulty, what would be the most appropriate medication to assist with his sleep problems?

      Your Answer: Melatonin

      Explanation:

      Medication Options for Sleep Disturbance in Patients with Learning Disabilities

      Patients with learning disabilities often experience chronic sleep-wake cycle disruption, leading to insomnia. Melatonin has been found to be effective in regulating natural sleep-wake cycles and treating insomnia in these patients. However, it is not licensed for use in individuals under 55 years old and should only be prescribed by a psychiatrist with expertise in sleep disturbance in learning disability.

      Other medications, such as zopiclone, diazepam, promethazine, and trazodone, can also be used for insomnia. Zopiclone is helpful for patients with trouble falling asleep, while diazepam can be used for anxiety and sedation but may lead to dependence. Promethazine is useful for maintaining sleep, particularly in cases of agitation or insomnia. Trazodone, on the other hand, is an antidepressant medication with sedating properties and is typically used for patients with depression and sleep disturbance.

      However, given the history of learning disability in the stem, melatonin would be the most appropriate medication to trial in this patient. It is important to consult with a psychiatrist with expertise in sleep disturbance in learning disability to determine the best course of treatment.

    • This question is part of the following fields:

      • Psychiatry
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SESSION STATS - PERFORMANCE PER SPECIALTY

Psychiatry (4/10) 40%
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