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Question 1
Correct
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A 28-year-old man presents to his primary care physician with concerns about recurring thoughts. He has been experiencing thoughts of needing to repeatedly check that his car is locked when leaving it, even though he knows he locked it. Sometimes he feels the need to physically check the car, but other times it is just thoughts. He denies any symptoms of depression or psychosis and has no significant medical or family history. He is not taking any medications. What is the recommended first-line treatment for his likely diagnosis?
Your Answer: Exposure and response prevention
Explanation:The recommended treatment for a patient with OCD is exposure and response prevention, which involves exposing them to anxiety-inducing situations (such as having dirty hands) and preventing them from engaging in their usual compulsive behaviors. This therapy is effective in breaking the cycle of obsessive thoughts and compulsive actions.
Obsessive-compulsive disorder (OCD) is characterized by the presence of obsessions and/or compulsions that can cause significant functional impairment and distress. Risk factors include family history, age, pregnancy/postnatal period, and history of abuse, bullying, or neglect. Treatment options include low-intensity psychological treatments, SSRIs, and more intensive CBT (including ERP). Severe cases should be referred to the secondary care mental health team for assessment and may require combined treatment with an SSRI and CBT or clomipramine as an alternative. ERP involves exposing the patient to an anxiety-provoking situation and stopping them from engaging in their usual safety behavior. Treatment with SSRIs should continue for at least 12 months to prevent relapse and allow time for improvement.
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This question is part of the following fields:
- Psychiatry
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Question 2
Correct
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You receive a call from the husband of a 50-year-old patient who is registered at your practice. The patient has a history of type 2 diabetes mellitus treated with metformin. According to her husband, for the past three days, she has been talking nonsensically and experiencing hallucinations. An Approved Mental Health Professional is contacted and heads to the patient's residence. Upon arrival, you encounter a disheveled and emaciated woman sitting on the pavement outside her home, threatening to physically harm you. What is the most appropriate course of action?
Your Answer: Call the police
Explanation:If the patient is exhibiting violent behavior in a public place, it is advisable to contact the police and have her taken to a secure location for a proper evaluation. It is important to note that Metformin does not lead to hypoglycemia.
Sectioning under the Mental Health Act is a legal process used for individuals who refuse voluntary admission. This process excludes patients who are under the influence of drugs or alcohol. There are several sections under the Mental Health Act that allow for different types of admission and treatment.
Section 2 allows for admission for assessment for up to 28 days, which is not renewable. An Approved Mental Health Professional (AMHP) or the nearest relative (NR) can make the application on the recommendation of two doctors, one of whom should be an approved consultant psychiatrist. Treatment can be given against the patient’s wishes.
Section 3 allows for admission for treatment for up to 6 months, which can be renewed. An AMHP and two doctors, both of whom must have seen the patient within the past 24 hours, can make the application. Treatment can also be given against the patient’s wishes.
Section 4 is used as an emergency 72-hour assessment order when a section 2 would involve an unacceptable delay. A GP and an AMHP or NR can make the application, which is often changed to a section 2 upon arrival at the hospital.
Section 5(2) allows a doctor to legally detain a voluntary patient in hospital for 72 hours, while section 5(4) allows a nurse to detain a voluntary patient for 6 hours.
Section 17a allows for Supervised Community Treatment (Community Treatment Order) and can be used to recall a patient to the hospital for treatment if they do not comply with the conditions of the order in the community, such as taking medication.
Section 135 allows for a court order to be obtained to allow the police to break into a property to remove a person to a Place of Safety. Section 136 allows for someone found in a public place who appears to have a mental disorder to be taken by the police to a Place of Safety. This section can only be used for up to 24 hours while a Mental Health Act assessment is arranged.
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This question is part of the following fields:
- Psychiatry
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Question 3
Correct
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A 28-year-old woman contacts her doctor seeking guidance on stopping all of her medications abruptly. She has a medical history of asthma, depression, and occasional tennis elbow pain, for which she takes a salbutamol inhaler, citalopram, and paracetamol, respectively. What is the most probable outcome if she discontinues her medications suddenly?
Your Answer: Diarrhoea
Explanation:When it comes to discontinuing medication, it’s important to note the specific drug being used. Abruptly stopping a salbutamol inhaler or paracetamol is unlikely to cause any adverse effects. However, stopping a selective serotonin reuptake inhibitor (SSRI) like citalopram can lead to discontinuation symptoms. Gastrointestinal side-effects, such as diarrhoea, are commonly seen in SSRI discontinuation syndrome. To avoid this, it’s recommended to gradually taper off SSRIs. Blunted affect is not likely to occur as a result of sudden discontinuation, but emotional lability and mood swings may be observed. Cyanopsia, or blue-tinted vision, is not a known symptom of SSRI discontinuation, but it can be a side effect of other drugs like sildenafil. While hypertension has been reported in some cases, it’s less common than gastrointestinal symptoms. Weight loss, rather than weight gain, is often reported upon sudden discontinuation of SSRIs.
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.
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This question is part of the following fields:
- Psychiatry
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Question 4
Correct
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A 20-year old man with suspected schizophrenia is reviewed in clinic. During the consultation the patient informs you that there is a plot to destroy the world and that he has been chosen as a saviour.
Which of the following terms most appropriately describes this patient's belief?Your Answer: Delusion
Explanation:Understanding Psychotic Symptoms: Delusions, Illusions, Perseveration, and Hallucinations
Psychotic symptoms are not simply exaggerations of normal experiences like anxiety or depression. They include hallucinations, delusions, and thought disorder. Delusions are false beliefs that are not shared by others in a cultural group and can be characteristic of different psychiatric disorders. Persecutory delusions are the most common form in schizophrenia and delusional disorder. Schizophrenia is characterized by episodes of delusions, hallucinations, bizarre behavior, incoherent thought processes, and flat or inappropriate affect. Illusions, on the other hand, are misinterpretations of existing sensory stimuli and suggest delirium or intoxication. Perseveration is the persistent repetition of words, phrases, or simple motor behavior and can occur in delirium, dementia, or psychosis. Hallucinations are perceptions of stimuli that are not there and are less common than delusions in schizophrenia. Mood-congruent delusions are consistent with the reported or observed mood and may be markers of the severity of mood disturbance, while mood-incongruent delusions are less easily explained but are commonly associated with a worse prognosis.
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This question is part of the following fields:
- Psychiatry
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Question 5
Correct
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A 42-year-old woman visits her GP with her husband, reporting that she has been experiencing a racing heart for the past year. She also feels sweaty and sometimes has difficulty breathing. Despite seeing a cardiologist, no abnormalities were found in her heart. The patient admits to worrying about various things, which has affected her relationships with her loved ones. She also suffers from insomnia 3-4 nights a week. The patient has no significant medical history, but her cousin has a history of depression. On examination, the patient's heart rate is 89 bpm, and her palms are sweaty. Blood tests show no abnormalities, including normal thyroid function and calcium levels. Which neuroendocrine axis is involved in the patient's condition?
Your Answer: Hypothalamic–pituitary–adrenal (HPA)
Explanation:The Role of Hypothalamic-Pituitary Axes in Health and Disease
The hypothalamic-pituitary axes play a crucial role in maintaining homeostasis in the body. Among these axes, the hypothalamic-pituitary-adrenal (HPA) axis is particularly important in the pathophysiology of anxiety disorders. Overactivation of the HPA axis leads to the release of catecholamines, resulting in the fight or flight response. Environmental factors and genetics may contribute to the development of anxiety disorders, but the final common pathway is the dysregulation of the HPA axis.
The hypothalamic-pituitary-thyroid (HPT) axis is involved in thyroid disorders, such as hyperthyroidism and hypothyroidism. However, normal thyroid function rules out this axis as a cause of the patient’s symptoms.
The hypothalamic-pituitary-gonadal (HPG) axis is responsible for the release of sex hormones, such as oestrogen and testosterone. Disorders affecting the HPG axis can impact puberty and sexual development.
The hypothalamic-pituitary-prolactin (HPP) axis regulates the release of prolactin, which acts on the mammary glands. Medications can cause dysregulation of the HPP axis, resulting in hyperprolactinaemia or hypoprolactinaemia.
Finally, the hypothalamic-pituitary-somatotropic (HPS) axis is involved in the release of growth hormone and insulin-like growth factor 1. Dysregulation of the HPS axis can lead to growth hormone deficiency and Laron syndrome.
Understanding the role of these hypothalamic-pituitary axes is crucial in diagnosing and treating various health conditions.
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This question is part of the following fields:
- Psychiatry
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Question 6
Correct
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A 14-year-old male comes to his pediatrician's office with his father. His father is worried about his son's recent behavior. He explains that his son has been repeatedly checking the locks on the doors and windows in their house, causing him to be late for school. This behavior has been going on for a few weeks now.
What is the best initial approach to managing this condition?Your Answer: Exposure and response prevention
Explanation:The patient is displaying symptoms of OCD, which is characterized by obsessions or compulsions lasting for more than two weeks. The recommended initial treatment is a low-intensity psychological therapy, such as exposure and response prevention, according to NICE guidelines. While selective serotonin re-uptake inhibitors may also be used, non-pharmacological interventions are typically tried first. Interpersonal therapy is not recommended for OCD. Active monitoring is not suitable in this case, as the patient’s condition is significantly impacting their daily life and requires a more proactive approach.
Obsessive-compulsive disorder (OCD) is characterized by the presence of obsessions and/or compulsions that can cause significant functional impairment and distress. Risk factors include family history, age, pregnancy/postnatal period, and history of abuse, bullying, or neglect. Treatment options include low-intensity psychological treatments, SSRIs, and more intensive CBT (including ERP). Severe cases should be referred to the secondary care mental health team for assessment and may require combined treatment with an SSRI and CBT or clomipramine as an alternative. ERP involves exposing the patient to an anxiety-provoking situation and stopping them from engaging in their usual safety behavior. Treatment with SSRIs should continue for at least 12 months to prevent relapse and allow time for improvement.
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This question is part of the following fields:
- Psychiatry
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Question 7
Correct
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A 67-year-old Indigenous male with a lengthy history of heavy alcohol use is hospitalized after experiencing a seizure upon stopping alcohol consumption. The physician observes that the patient is experiencing memory difficulties, as evidenced by his detailed recollection of events from the previous day in the hospital that are completely different from what actually occurred. The patient does not appear to have any intention of deceiving the doctor.
What is the most appropriate term to describe the patient's abnormality?Your Answer: Confabulation
Explanation:Common Terms in Psychiatry
Confabulation is the act of unintentionally reporting false memories that seem plausible. This can occur in individuals with Alzheimer’s disease or Korsakoff syndrome. Concrete thinking is a type of thinking where a person has difficulty thinking abstractly and may interpret proverbs literally. Hallucinations are sensory experiences that are not caused by external stimuli. Thought blocking is when a person suddenly stops their train of thought. Thought insertion is a delusion where a person believes that their thoughts are being placed in their mind by an external force.
These terms are commonly used in psychiatry to describe various symptoms and conditions. It is important to understand their meanings in order to properly diagnose and treat patients. Confabulation and concrete thinking may be indicative of cognitive impairment, while hallucinations and delusions may be symptoms of a psychotic disorder. Thought blocking may occur in individuals with schizophrenia, while thought insertion may be a symptom of delusional disorder. By these terms, healthcare professionals can provide better care for their patients.
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This question is part of the following fields:
- Psychiatry
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Question 8
Correct
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A 21-year-old student has been diagnosed with schizophrenia.
What is the most frequent type of hallucination experienced in schizophrenia?Your Answer: Auditory
Explanation:Understanding the Characteristics of Psychosis: Types of Hallucinations
Psychosis is a mental health condition that can manifest in various ways, including hallucinations. Hallucinations are sensory experiences that occur without any corresponding sensory stimulation. While they can occur in any sensory modality, auditory hallucinations are particularly common in patients with schizophrenia. However, it is important to note that the presence or absence of one symptom or type of symptom does not determine the psychiatric diagnosis.
Visual hallucinations are more common in delirium or psychedelic drug intoxication than in schizophrenia. Olfactory and gustatory hallucinations are associated with partial complex seizures, while tactile hallucinations are characteristic of delirium tremens, a severe form of alcohol withdrawal.
To aid in the diagnosis of schizophrenia, clinicians often use mnemonics. Negative symptoms, also known as type II schizophrenic symptoms, can be remembered with the acronym LESS. Diagnostic criteria for schizophrenia, in the absence of cerebral damage, intoxication, epilepsy, or mania, can be remembered with the acronym DEAD. Positive symptoms, also known as type I schizophrenic symptoms, can be remembered with the acronym THREAD.
Overall, understanding the characteristics of different types of hallucinations can aid in the evaluation and diagnosis of psychotic patients. However, it is important to consider the overall spectrum of symptoms and the course of the disease when making a diagnosis.
Understanding the Characteristics of Psychosis: Types of Hallucinations
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This question is part of the following fields:
- Psychiatry
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Question 9
Correct
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A 28-year-old man who works as a software engineer has recently been terminated by his supervisor, citing missed deadlines and a decline in the quality of his work. He disputes this and claims that his supervisor has always had a personal vendetta against him. He has confided in his family and close friends, but despite their reassurances, he believes that some of his colleagues were colluding with his supervisor to oust him. During his mental health evaluation, he appears to be generally stable, except for his fixation on his supervisor and coworkers conspiring against him. His family reports that he is easily offended and has a tendency to believe in conspiracies. What is the most probable diagnosis?
Your Answer: Paranoid personality disorder
Explanation:The diagnosis of paranoid personality disorder may be appropriate for individuals who exhibit hypersensitivity, hold grudges when insulted, doubt the loyalty of those around them, and are hesitant to confide in others.
In the given case, the correct diagnosis is paranoid personality disorder as the individual is reacting strongly to being fired by her manager and believes it to be a conspiracy involving her manager and colleagues. This aligns with the classic symptoms of paranoid personality disorder, and the individual’s family has also observed her tendency to be easily offended and paranoid.
Borderline personality disorder is an incorrect diagnosis as it is characterized by emotional instability, difficulty controlling anger, unstable relationships, and recurrent suicidal thoughts, rather than paranoia.
Schizoid personality disorder is also an incorrect diagnosis as it is characterized by a preference for solitary activities, lack of interest in socializing, and a lack of close relationships, rather than paranoia.
Schizophrenia is an incorrect diagnosis as the individual’s mental state examination is broadly normal, whereas schizophrenia typically presents with delusions, hallucinations, and disordered thinking.
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.
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This question is part of the following fields:
- Psychiatry
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Question 10
Correct
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A 60-year-old retiree comes in for his annual diabetes review. He has type II diabetes; the condition seems to be well controlled with metformin, with HbA1c levels in the target range and no signs of end-organ damage.
During the consultation, the nurse asks some routine questions and is alarmed to find that the patient drinks almost 50 units of alcohol a week. The patient insists that he only drinks at the end of the day to relax, and on a Sunday when he goes to the pub with friends. He is adamant that he does not have a drinking problem and that he could stop at any time if he wanted to.
The nurse refers the patient to the doctor to assess for potential signs of alcohol dependency.
Which of the following are indications of alcohol dependency?Your Answer: Physiological withdrawal state, a strong desire or sense of compulsion to drink alcohol, increased tolerance to alcohol
Explanation:Understanding the Diagnostic Criteria for Substance Dependence
Substance dependence, including alcohol dependence, is diagnosed based on a set of criteria. These criteria include a strong desire or compulsion to use the substance, difficulty controlling substance use, physiological withdrawal symptoms when substance use is reduced or stopped, evidence of tolerance, neglect of other interests or activities, and continued substance use despite harmful consequences. It is important to note that the presence of a physiological withdrawal state is a key factor in the diagnosis of substance dependence. However, drinking late at night or avoiding sweet drinks are not indicative of dependence. Understanding these criteria can help in identifying and treating substance dependence.
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This question is part of the following fields:
- Psychiatry
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Question 11
Incorrect
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A 28-year-old man visits his GP with complaints of poor memory. He works in a consulting company and recently faced trouble at work after missing a flight to a client in Tokyo. He has difficulty falling asleep and wakes up feeling exhausted. Sometimes he wakes up in the middle of the night screaming. When awake, he cannot relax and appears to be constantly on edge.
The patient has a history of attention-deficit hyperactivity disorder during childhood and one major depressive episode during his university years. He has not had any mental health-related complaints since then. He drinks one bottle of wine on Saturdays with his wife and admits to occasional past cocaine use. However, he stopped using cocaine after being ambushed and stabbed while dealing with a dealer during his last vacation in Thailand two months ago. His wife has recently complained that he appears emotionally unavailable.
Upon physical examination, no abnormalities are found. However, during the mental state examination, the patient exhibits low mood and an increased startle response. What is the most likely diagnosis?Your Answer: Acute stress disorder
Correct Answer: Post-traumatic stress disorder
Explanation:The individual is displaying common symptoms of PTSD, including re-experiencing the traumatic event through nightmares, avoiding triggers associated with the event, and experiencing hyperarousal such as hypervigilance and difficulty sleeping. It has been over a month since the traumatic event occurred, ruling out acute stress disorder. There are no signs of psychosis, and the individual has been sober from cocaine for two months. While anxiety is a symptom of PTSD, there is no indication of a generalized anxiety disorder or major depressive episode.
Understanding Post-Traumatic Stress Disorder (PTSD)
Post-traumatic stress disorder (PTSD) is a mental health condition that can develop in individuals of any age following a traumatic event. This can include experiences such as natural disasters, accidents, or even childhood abuse. PTSD is characterized by a range of symptoms, including re-experiencing the traumatic event through flashbacks or nightmares, avoidance of situations or people associated with the event, hyperarousal, emotional numbing, depression, and even substance abuse.
Effective management of PTSD involves a range of interventions, depending on the severity of the symptoms. Single-session interventions are not recommended, and watchful waiting may be used for mild symptoms lasting less than four weeks. Military personnel have access to treatment provided by the armed forces, while trauma-focused cognitive behavioral therapy (CBT) or eye movement desensitization and reprocessing (EMDR) therapy may be used in more severe cases.
It is important to note that drug treatments for PTSD should not be used as a routine first-line treatment for adults. If drug treatment is used, venlafaxine or a selective serotonin reuptake inhibitor (SSRI), such as sertraline, should be tried. In severe cases, NICE recommends that risperidone may be used. Overall, understanding the symptoms and effective management of PTSD is crucial in supporting individuals who have experienced traumatic events.
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This question is part of the following fields:
- Psychiatry
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Question 12
Incorrect
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A 42-year-old man comes to the Emergency Department claiming that he is infested with fleas. He reports feeling extremely itchy and is requesting treatment. This is his fourth visit in the past year for this issue. The patient has no notable medical history and denies using any illicit drugs. He drinks 12 units of alcohol per week and is employed full-time as a teacher.
What is the probable diagnosis?Your Answer: Fregoli syndrome
Correct Answer: Delusional parasitosis
Explanation:The correct diagnosis for a patient who has a fixed, false belief that they are infested by bugs is delusional parasitosis. This rare condition can occur on its own or alongside other psychiatric disorders, but typically does not significantly impair the patient’s daily functioning. Capgras syndrome, delirium tremens, and Fregoli syndrome are all incorrect diagnoses for this particular case.
Understanding Delusional Parasitosis
Delusional parasitosis is a condition that is not commonly known but can be debilitating for those who suffer from it. It is characterized by a persistent and false belief that one is infested with bugs, parasites, mites, bacteria, or fungus. This delusion can occur on its own or in conjunction with other psychiatric conditions. Despite the delusion, patients may still be able to function normally in other aspects of their lives.
In simpler terms, delusional parasitosis is a rare condition where a person believes they have bugs or other organisms living on or inside their body, even though there is no evidence to support this belief. This can cause significant distress and anxiety for the individual, and they may go to great lengths to try and rid themselves of the perceived infestation. It is important for those who suspect they may be suffering from delusional parasitosis to seek professional help, as treatment can greatly improve their quality of life.
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This question is part of the following fields:
- Psychiatry
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Question 13
Incorrect
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You are considering prescribing an antidepressant to a 75-year-old woman who has been experiencing low mood and difficulty maintaining her weight due to low appetite. Which psychiatric medication could potentially improve both her mood and appetite?
Your Answer: Sertraline
Correct Answer: Mirtazapine
Explanation:Mirtazapine may be prescribed for its beneficial side effects of increased appetite and sedation. Unlike sertraline and fluoxetine, which are SSRIs that primarily improve mood, they do not have a significant impact on appetite. Gabapentin and pregabalin, which are typically used for neuropathic pain, are not suitable for this purpose.
Mirtazapine: An Effective Antidepressant with Fewer Side Effects
Mirtazapine is an antidepressant medication that functions by blocking alpha2-adrenergic receptors, which leads to an increase in the release of neurotransmitters. Compared to other antidepressants, mirtazapine has fewer side effects and interactions, making it a suitable option for older individuals who may be more susceptible to adverse effects or are taking other medications.
Mirtazapine has two side effects that can be beneficial for older individuals who are experiencing insomnia and poor appetite. These side effects include sedation and an increased appetite. As a result, mirtazapine is typically taken in the evening to help with sleep and to stimulate appetite.
Overall, mirtazapine is an effective antidepressant that is well-tolerated by many individuals. Its unique side effects make it a valuable option for older individuals who may have difficulty sleeping or eating.
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This question is part of the following fields:
- Psychiatry
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Question 14
Correct
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A 20-year-old man presented to the psychiatry outpatients department with a sense of unsettling alteration in his personality. He expressed feeling peculiar, as if he is not his usual self. Despite being anxious and tense, he was unable to identify the exact nature of this change. What term best characterizes this sensation?
Your Answer: Depersonalisation
Explanation:Depersonalisation
Depersonalisation is a distressing experience where an individual feels disconnected from their own body and reality. It is often described as feeling like living in a dream or being in immediate danger of disappearing. Despite cognitive functioning remaining intact, the sufferer may interpret the experience as a sign of losing their mind. This can lead to the development of an autochthonous delusion, which arises spontaneously.
The delusional mood is a sense of unease that can be resolved when a delusional belief forms. Over valued ideas are also present in depersonalisation, but they are not held with the same level of fixity as delusional beliefs. Overall, depersonalisation can be a frightening and disturbing experience that can leave individuals feeling disconnected from themselves and their surroundings.
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This question is part of the following fields:
- Psychiatry
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Question 15
Correct
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A 22-year-old man with a history of hearing voices is brought to the Emergency Department by his family. He describes these voices as telling him to kill himself, ‘as he has a demon in him’. He also reports noting his intelligence being tapped through the television by a higher power. This has been going on for the past 3 months. His family denies either depression or manic episodes. The patient was admitted to the inpatient Psychiatry Unit and, after an evaluation, a diagnosis of schizophreniform disorder was made. He was started on Haldol (haloperidol) for his symptoms. Two days after initiation of therapy, the patient’s temperature rose to 41 °C, blood pressure 150/85 mmHg and pulse 110 bpm. Physical examination revealed muscular rigidity and delirium.
What is the most likely diagnosis?Your Answer: Neuroleptic malignant syndrome
Explanation:Understanding Neurological Disorders Caused by Medications
Neurological disorders can be caused by certain medications, such as high-potency anti-psychotic drugs like haloperidol. One such disorder is neuroleptic malignant syndrome, which can result from the use of these medications to treat conditions like schizophrenia. Symptoms include muscular rigidity, fever, and altered mental status. Treatment involves discontinuing the medication and managing symptoms with cooling measures and medications like dantrolene or bromocriptine.
Another medication-induced neurological disorder is serotonin syndrome, which can occur when a patient takes multiple doses or an overdose of medications like selective serotonin reuptake inhibitors (SSRIs) or serotonin agonists. Symptoms include muscular twitching, agitation, and autonomic instability. Treatment involves discontinuing the medication and managing symptoms with supportive care.
Malignant hyperthermia is a similar disorder that can occur during anesthesia administration and is caused by an inherited genetic disorder. Symptoms include fever, muscle rigidity, and altered mental status. Treatment involves using medications like dantrolene and providing supportive care.
It’s important to note that not all neurological disorders are caused by medications. Meningitis, for example, is not a side effect of haloperidol. Acute dystonia, which presents with spasms of various muscle groups, can also be caused by haloperidol, but the presenting symptoms are more consistent with neuroleptic malignant syndrome. Understanding the different neurological disorders caused by medications can help healthcare providers make accurate diagnoses and provide appropriate treatment.
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This question is part of the following fields:
- Psychiatry
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Question 16
Correct
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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: 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.
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This question is part of the following fields:
- Psychiatry
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Question 17
Correct
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Sophie is a 25-year-old woman who was diagnosed with generalised anxiety disorder 8 months ago. She has been taking sertraline for 5 months but feels that her symptoms have not improved much. Sophie wants to switch to a different medication. What is the most suitable drug to start?
Your Answer: Venlafaxine
Explanation:If sertraline, a first-line SSRI, is ineffective or not well-tolerated for treating GAD, alternative options include trying a different SSRI like paroxetine or escitalopram, or an SNRI like duloxetine or venlafaxine. In Maxine’s case, since sertraline did not work, venlafaxine, an SNRI, would be a suitable option. Bupropion is primarily used for smoking cessation but may be considered off-label for depression treatment if other options fail. Mirtazapine is a NaSSA used for depression, not GAD. Pregabalin can be used if SSRIs or SNRIs are not suitable, and propranolol can help with acute anxiety symptoms but is not a specific treatment for GAD.
Anxiety is a common disorder that can manifest in various ways. According to NICE, the primary feature is excessive worry about multiple events associated with heightened tension. It is crucial to consider potential physical causes when diagnosing anxiety disorders, such as hyperthyroidism, cardiac disease, and medication-induced anxiety. Medications that may trigger anxiety include salbutamol, theophylline, corticosteroids, antidepressants, and caffeine.
NICE recommends a step-wise approach for managing generalised anxiety disorder (GAD). This includes education about GAD and active monitoring, low-intensity psychological interventions, high-intensity psychological interventions or drug treatment, and highly specialist input. Sertraline is the first-line SSRI for drug treatment, and if it is ineffective, an alternative SSRI or a serotonin-noradrenaline reuptake inhibitor (SNRI) such as duloxetine or venlafaxine may be offered. If the patient cannot tolerate SSRIs or SNRIs, pregabalin may be considered. For patients under 30 years old, NICE recommends warning them of the increased risk of suicidal thinking and self-harm and weekly follow-up for the first month.
The management of panic disorder also follows a stepwise approach, including recognition and diagnosis, treatment in primary care, review and consideration of alternative treatments, review and referral to specialist mental health services, and care in specialist mental health services. NICE recommends either cognitive behavioural therapy or drug treatment in primary care. SSRIs are the first-line drug treatment, and if contraindicated or no response after 12 weeks, imipramine or clomipramine should be offered.
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This question is part of the following fields:
- Psychiatry
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Question 18
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A 50-year-old man with schizophrenia who is on chlorpromazine experiences a bilateral resting tremor. Which side effect of antipsychotic medication does this exemplify?
Your Answer: Parkinsonism
Explanation:Antipsychotics are a group of drugs used to treat schizophrenia, psychosis, mania, and agitation. They are divided into two categories: typical and atypical antipsychotics. The latter were developed to address the extrapyramidal side-effects associated with the first generation of typical antipsychotics. Typical antipsychotics work by blocking dopaminergic transmission in the mesolimbic pathways through dopamine D2 receptor antagonism. They are associated with extrapyramidal side-effects and hyperprolactinaemia, which are less common with atypical antipsychotics.
Extrapyramidal side-effects (EPSEs) are common with typical antipsychotics and include Parkinsonism, acute dystonia, sustained muscle contraction, akathisia, and tardive dyskinesia. The latter is a late onset of choreoathetoid movements that may be irreversible and occur in 40% of patients. The Medicines and Healthcare products Regulatory Agency has issued specific warnings when antipsychotics are used in elderly patients, including an increased risk of stroke and venous thromboembolism. Other side-effects include antimuscarinic effects, sedation, weight gain, raised prolactin, impaired glucose tolerance, neuroleptic malignant syndrome, reduced seizure threshold, and prolonged QT interval.
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This question is part of the following fields:
- Psychiatry
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Question 19
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A 35-year-old male comes to your clinic at the suggestion of his partner. He has been experiencing hyperarousal to loud noises and difficulty concentrating at work since his stay in the ICU 4 weeks ago. His partner believes he may have acute stress disorder, but you diagnose him with PTSD and discuss treatment options. He asks you to explain the difference between the two to his partner. You explain that while the presentation is similar, the main difference is temporal.
At what point after the event can you confirm a diagnosis of PTSD?Your Answer: 4 weeks
Explanation:Acute stress disorder is characterized by an acute stress reaction that occurs within four weeks of a traumatic event, while PTSD is diagnosed after four weeks have passed. Symptoms presented within two weeks would suggest acute stress disorder. Both acute stress disorder and PTSD share similar features, including re-experiencing, avoidance, hyperarousal, and emotional numbing. Re-experiencing symptoms may include flashbacks, nightmares, and repetitive and distressing intrusive images. Avoidance symptoms may involve avoiding people, situations, or circumstances associated with the traumatic event. Hyperarousal symptoms may include hypervigilance for threat, exaggerated startle response, sleep problems, irritability, and difficulty concentrating. Emotional numbing may result in a lack of ability to experience feelings and feeling detached.
Acute stress disorder is a condition that occurs within the first four weeks after a person has experienced a traumatic event, such as a life-threatening situation or sexual assault. It is characterized by symptoms such as intrusive thoughts, dissociation, negative mood, avoidance, and arousal. These symptoms can include flashbacks, nightmares, feeling disconnected from reality, and being hypervigilant.
To manage acute stress disorder, trauma-focused cognitive-behavioral therapy (CBT) is typically the first-line treatment. This type of therapy helps individuals process their traumatic experiences and develop coping strategies. In some cases, benzodiazepines may be used to alleviate acute symptoms such as agitation and sleep disturbance. However, caution must be taken when using these medications due to their addictive potential and potential negative impact on adaptation. Overall, early intervention and appropriate treatment can help individuals recover from acute stress disorder and prevent the development of more chronic conditions such as PTSD.
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This question is part of the following fields:
- Psychiatry
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Question 20
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A 42-year-old man presents to his GP with a sense of sadness and emptiness. He lost his job 8 months ago and has been struggling to focus on his daily activities ever since. 'I'm just not the same person I used to be,' he tells the doctor. He has no interest in finding a new job and spends most of his time at home. He denies any thoughts of suicide. His sleep is disturbed and he wakes up feeling tired. He also reports a decreased interest in sex with his partner. His medical history is significant only for a bilateral hand tremor that worsens with movement. He is a non-smoker and only drinks socially. What is the most likely diagnosis?
Your Answer: Major depressive disorder
Explanation:Distinguishing Major Depressive Disorder from Other Conditions
Major depressive disorder is a psychiatric condition characterized by symptoms such as anhedonia, sadness, lack of concentration, sleep impairment, social withdrawal, and hopelessness. It is often triggered by a significant stressor, such as job loss. While severe depression can also be a component of adjustment disorder, the duration of symptoms beyond 6 months following a stressor suggests a diagnosis of major depressive disorder. Anhedonia, a significant lack of interest in once pleasurable activities, is a symptom rather than a diagnosis by itself and is often present in major depressive disorder. Drug abuse can be a cause or effect of depression, but in this case, the patient’s recent stressor makes drug-related depression less likely. The patient’s hand tremor, worsened by movement, is more likely related to essential tremor than Parkinson’s disease, which typically presents with a resting hand tremor, rigidity, and bradykinesia. Accurately distinguishing major depressive disorder from other conditions is crucial for effective treatment.
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This question is part of the following fields:
- Psychiatry
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