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Question 1
Incorrect
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Sophie is a 32-year-old mother of two, who is uncertain if she wants to have more children. She comes to you with a history of not having a period for the past 9 months. Sophie had regular menstrual cycles for 28 months after giving birth to her last child. She has never used any hormonal birth control or undergone any surgeries. Upon examination, her abdomen and gynecological areas appear normal, and there are no signs of hyperandrogenism. A pregnancy test confirms that she is not pregnant.
Lab results show a decrease in follicle-stimulating hormone (FSH), luteinizing hormone (LH), and estradiol levels, while prolactin, thyroid-stimulating hormone (TSH), and T4 levels are normal. A 10-day progestin challenge fails to induce a withdrawal bleed.
What is the underlying cause of Sophie's amenorrhea?Your Answer: Premature ovarian failure
Correct Answer: Hypothalamic dysfunction
Explanation:Caroline’s case of secondary amenorrhoea suggests a hypothalamic cause, as indicated by low levels of gonadotrophins (FSH and LH) and oestradiol. This is different from pituitary adenoma, which often presents with panhypopituitarism and normal prolactin levels, and premature ovarian failure, which is diagnosed in women under 40 with increased FSH levels and menopausal-like symptoms. PCOS is also unlikely as there is no hyperandrogenism or other symptoms present. Hypothalamic dysfunction can be caused by excessive exercise, stress, or dieting, which should be explored in the patient’s history.
Understanding Amenorrhoea: Causes, Investigations, and Management
Amenorrhoea is a condition characterized by the absence of menstrual periods in women. It can be classified into two types: primary and secondary. Primary amenorrhoea occurs when menstruation fails to start by the age of 15 in girls with normal secondary sexual characteristics or by the age of 13 in girls without secondary sexual characteristics. On the other hand, secondary amenorrhoea is the cessation of menstruation for 3-6 months in women with previously normal and regular menses or 6-12 months in women with previous oligomenorrhoea.
There are various causes of amenorrhoea, including gonadal dysgenesis, testicular feminization, congenital malformations of the genital tract, functional hypothalamic amenorrhoea, congenital adrenal hyperplasia, imperforate hymen, hypothalamic amenorrhoea, polycystic ovarian syndrome, hyperprolactinemia, premature ovarian failure, Sheehan’s syndrome, Asherman’s syndrome, and thyrotoxicosis. To determine the underlying cause of amenorrhoea, initial investigations such as full blood count, urea & electrolytes, coeliac screen, thyroid function tests, gonadotrophins, prolactin, and androgen levels are necessary.
The management of amenorrhoea depends on the underlying cause. For primary amenorrhoea, it is important to investigate and treat any underlying cause. Women with primary ovarian insufficiency due to gonadal dysgenesis may benefit from hormone replacement therapy to prevent osteoporosis. For secondary amenorrhoea, it is important to exclude pregnancy, lactation, and menopause in women 40 years of age or older and treat the underlying cause accordingly. It is important to note that hypothyroidism may also cause amenorrhoea.
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This question is part of the following fields:
- Gynaecology
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Question 2
Incorrect
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A medical registrar is obtaining consent from a 42-year-old patient with longstanding ulcerative colitis who is listed for a surveillance colonoscopy that afternoon.
Regarding consent, which one of the following statements is correct?Your Answer: A heavily inebriated patient refusing life-saving treatment cannot be overruled by the treating doctor
Correct Answer: Therapeutic privilege can allow you to withhold information from a patient in certain, very specific situations
Explanation:Therapeutic privilege allows doctors to withhold information from patients in certain situations where disclosure could cause serious harm or if the patient is not emotionally stable enough to handle the information. It is important to discuss these situations with senior colleagues and document the reasons for withholding information. Contrary to popular belief, patients should be informed of common and serious complications of treatment, regardless of the likelihood of occurrence. A signed consent form does not protect doctors from negligence claims, as they have a duty of care to inform patients. In emergency situations, such as an appendectomy for a child, consent may not be required, but it is still preferable to discuss the case with all parties involved. Patients who are heavily intoxicated may not have the capacity to refuse life-saving treatment, and it is necessary to wait until they are sober to discuss treatment options or proceed with urgent treatment.
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This question is part of the following fields:
- Ethics And Legal
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Question 3
Correct
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A 35-year-old motorcyclist is rushed to the emergency department after a high-speed road traffic accident. Upon examination, his pulse rate is 110/min, blood pressure is 100/74 mmHg, and his GCS is 15. X-rays reveal a closed but comminuted fracture of his left tibia, which is swollen and tender. As he is being transferred to the orthopaedic ward, he complains of severe, unrelenting pain in his left lower leg and numbness in his left foot. The dorsalis pedis and posterior tibial pulsations are palpable, but the pain in his foot worsens with passive dorsiflexion of the ankle. What is the most likely cause of this patient's symptoms?
Your Answer: Compartment syndrome
Explanation:Compartment syndrome is a condition where interstitial fluid pressure increases in an osteofascial compartment, leading to compromised microcirculation and necrosis of affected nerves and muscles. It can be caused by fractures, crush injuries, burns, tourniquets, snake bites, and fluid extravasation. Symptoms include unremitting pain, sensory loss, muscle weakness, and paralysis. Compartment pressures are measured using a slit catheter device, and fasciotomy is necessary if the difference between diastolic pressure and compartment pressure is less than 30 mmHg. It can also affect the upper limb, with the greatest neurologic damage to the median nerve in anterior forearm compartment syndrome.
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This question is part of the following fields:
- Surgery
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Question 4
Incorrect
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A 30-year-old woman is brought to your office by her brother. He is concerned about her lack of close friends and her eccentric behavior, speech, and beliefs. The patient believes she has psychic abilities and is fascinated with the paranormal. Her brother reports that she has displayed these behaviors since childhood, but he is only seeking help now as he is moving to another state and worries about how she will manage alone with their parents. What personality disorder might this patient have?
Your Answer: Schizoid personality disorder
Correct Answer: Schizotypal personality disorder
Explanation:Individuals with schizotypal personality disorder exhibit peculiar behavior, speech, and beliefs and typically do not have any close friends outside of their family.
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 5
Correct
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A 72-year-old woman visits her primary care physician (PCP) with concerns about not having had a bowel movement in the past four days. The patient typically has a daily bowel movement. She denies experiencing nausea or vomiting and has been passing gas. The patient was prescribed various pain medications by a home healthcare provider for left knee pain, which she has been experiencing for the past three weeks. The patient has a history of severe degeneration in her left knee and is awaiting an elective left total knee replacement. She has a medical history of hypertension, which she manages through lifestyle changes. A rectal examination shows no signs of fecal impaction.
What is the most appropriate course of action for managing this patient's constipation?Your Answer: Senna
Explanation:Medication Management for Constipation: Understanding the Role of Different Laxatives
When managing constipation in patients, it is important to consider the underlying cause and choose the appropriate laxative. For example, in patients taking opiates like codeine phosphate, a stimulant laxative such as Senna should be co-prescribed to counteract the constipating effects of the medication. On the other hand, bulk-forming laxatives like Ispaghula husk may be more suitable for patients with low-fibre diets. It is also important to avoid medications that can worsen constipation, such as loperamide, and to be cautious with enemas, which can cause complications in certain patients. By understanding the role of different laxatives, healthcare providers can effectively manage constipation and improve patient outcomes.
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This question is part of the following fields:
- Gastroenterology
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Question 6
Correct
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A 75-year-old woman fell down stairs and arrived at the Emergency Department with a painful left hip and difficulty walking. Imaging revealed a fracture of the left femoral head and a compression fracture of the T10 vertebra. She had no significant medical history prior to this incident.
What is the most probable underlying condition in this case?Your Answer: Osteoporosis
Explanation:Understanding Osteoporosis: A Disease of Reduced Bone Mass
Osteoporosis is a disease characterized by reduced bone mass, leading to increased porosity of the skeleton and a higher risk of fractures. This patient is likely suffering from osteoporosis with accelerated bone loss, which can be exacerbated by physical inactivity and decreased muscle mass. While osteoporosis can be localized to a specific bone or region, it can also affect the entire skeleton as a manifestation of a metabolic bone disease. The most common forms of osteoporosis are senile and postmenopausal osteoporosis, which are characterized by critical loss of bone mass that makes the skeleton vulnerable to fractures.
Other conditions, such as osteogenesis imperfecta, acute osteomyelitis, polyostotic fibrous dysplasia, and metastatic breast carcinoma, can also affect bone health but present differently and have different underlying causes. It is important to understand the symptoms and risk factors of osteoporosis to prevent and manage this disease effectively.
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This question is part of the following fields:
- Orthopaedics
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Question 7
Incorrect
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A 5-year-old boy is brought to see GP by his mom with a seal-like barking cough. His mom is worried as he seems to be struggling with his breathing, especially at night.
On examination, he is alert and engaging, although has mild sternal indrawing and appears tired. His observations are as follows:
Heart rate: 90 bpm
Blood pressure: 110/70 mmHg
Oxygen saturation: 98% on air
Respiratory rate: 20 breaths/min
Temperature: 37.2 C°
You suspect croup. What statement best fits this diagnosis?Your Answer: Respiratory syncytial virus (RSV) is the most common cause
Correct Answer: It is more common in autumn
Explanation:Understanding Croup: A Respiratory Infection in Infants and Toddlers
Croup is a type of upper respiratory tract infection that commonly affects infants and toddlers. It is characterized by a barking cough, fever, and coryzal symptoms, and is caused by a combination of laryngeal oedema and secretions. Parainfluenza viruses are the most common cause of croup. The condition typically peaks between 6 months and 3 years of age, and is more prevalent during the autumn season.
The severity of croup can be graded based on the presence of symptoms such as stridor, cough, and respiratory distress. Mild cases may only have occasional barking cough and no audible stridor at rest, while severe cases may have frequent barking cough, prominent inspiratory stridor at rest, and marked sternal wall retractions. Children with moderate or severe croup, those under 6 months of age, or those with known upper airway abnormalities should be admitted to the hospital.
Diagnosis of croup is usually made based on clinical presentation, but a chest x-ray may show subglottic narrowing, commonly referred to as the steeple sign. Treatment for croup typically involves a single dose of oral dexamethasone or prednisolone, regardless of severity. In emergency situations, high-flow oxygen and nebulized adrenaline may be necessary.
Understanding croup is important for parents and healthcare providers alike, as prompt recognition and treatment can help prevent complications and improve outcomes for affected children.
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This question is part of the following fields:
- Paediatrics
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Question 8
Correct
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A 42-year-old male presents to the Emergency department after tripping on a rocky trail during a hike. He has scrapes on both shins and a heavily soiled deep wound on his right palm. An x-ray of his hand reveals the existence of a foreign object. The patient reports being up-to-date on his tetanus immunization (last vaccination 5 years ago). What measures should be taken in this situation?
Your Answer: Both a reinforcing dose of vaccine and tetanus immunoglobulin should be given immediately
Explanation:Treatment for Tetanus-Prone Wounds
When a patient presents with a wound that is prone to tetanus, such as one that has come into contact with soil and has a foreign body, immediate treatment is necessary. According to guidance, a fully immunised patient with a tetanus-prone wound should receive both a reinforcing dose of vaccine and tetanus immunoglobulin. This treatment should be administered as soon as possible to prevent the development of tetanus, a serious and potentially fatal condition. It is important to follow these guidelines to ensure the best possible outcome for the patient.
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This question is part of the following fields:
- Emergency Medicine
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Question 9
Correct
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A 63-year-old man was diagnosed with granulomatosis with polyangiitis (GPA) two years ago and achieved remission after receiving pulsed cyclophosphamide. He has been maintained on oral azathioprine and a low dose of prednisolone since then. Recently, he returned to the clinic before his scheduled appointment with worsening ENT symptoms, haemoptysis, and declining renal function. Two months prior, he had a superficial bladder cancer (stage Ta, no invasion, single lesion) that was resected, followed by a single dose of postoperative chemotherapy. Given his new diagnosis, what is the most appropriate treatment for his vasculitis flare?
Your Answer: Rituximab therapy
Explanation:Treatment Dilemma for a Patient with Vasculitis
This patient is facing a difficult situation as he requires immunosuppressive therapy to manage his vasculitis, which is organ-threatening, but most immunosuppressants increase the risk of cancer. Increasing oral steroids would provide short-term relief but come with significant side effects. Azathioprine and mycophenolate mofetil are unlikely to control his disease in time and are associated with an increased risk of malignancy. Cyclophosphamide should be avoided as it is known to cause bladder cancer.
However, there is a potential solution in rituximab, a monoclonal antibody that targets CD20, a surface marker on most B cells. Rituximab has been shown to be as effective as cyclophosphamide in treating ANCA vasculitis, but with a much better side effect profile. A two-year course of rituximab therapy can even allow for the withdrawal of other immunosuppressants, which would be particularly helpful in this patient’s case. Overall, while the patient’s situation is challenging, rituximab may provide a viable treatment option.
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This question is part of the following fields:
- Nephrology
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Question 10
Incorrect
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A 47-year-old female collapses at home and is referred to the medical team. She has had two episodes of haematemesis in the emergency department, but no melaena. Her family denies any history of alcohol excess, and she has been otherwise healthy.
Upon examination, the patient appears pale and sweaty with a pulse of 110 bpm. Her lying blood pressure is 95/60 mmHg, which drops by 30 mmHg systolic upon standing. Palmar erythema, purpura, and spider naevi are noted. There is no hepatomegaly, but a fullness is present in the left hypochondrium.
What is the appropriate course of action for this patient?Your Answer: Emergency ultrasound scan of abdomen
Correct Answer: Emergency upper GI endoscopy
Explanation:Upper Gastrointestinal Bleeding with Haemodynamic Compromise
This patient is experiencing upper gastrointestinal bleeding and is showing signs of significant haemodynamic compromise, as indicated by her hypotension and postural drop. The most likely cause of this bleeding is variceal bleeding, which is often associated with chronic liver disease and portal hypertension. Urgent endoscopy is necessary in this case, as over 50% of patients with variceal bleeding require intervention such as banding or sclerotherapy, and the condition is associated with a high mortality rate. The underlying cause of the portal hypertension is unknown, so there is no need for vitamin supplementation unless alcohol excess is suspected.
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This question is part of the following fields:
- Emergency Medicine
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Question 11
Incorrect
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What is an example of an organism that can only survive inside a host cell?
Your Answer: HSV
Correct Answer: Chlamydia trachomatis
Explanation:Chlamydia Trachomatis: A Unique Intracellular Parasite
Chlamydia trachomatis is a type of intracellular parasite that infects only humans. Unlike other microorganisms, it cannot produce its own ATP or grow on artificial medium. Initially, it was believed to be a virus, but its unique developmental cycle led to its classification in a separate order. Diagnostic manuals often place it alongside other intracellular parasites like Rickettsiae.
The genome size of Chlamydia trachomatis is around 500-1000 kilobases and contains both RNA and DNA. It is also highly temperature-sensitive and must be refrigerated at 4°C immediately after obtaining a sample.
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This question is part of the following fields:
- Microbiology
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Question 12
Incorrect
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A 36-month-old girl is brought to the paediatric clinic. She is an orphaned refugee who recently arrived in the United Kingdom and has no medical history.
Her foster parents have brought her to the clinic as they have noticed that she becomes easily breathless on exertion or after a bath and squats down to catch her breath. During these times, they notice that her lips turn blue.
Upon examination, you find that she is on the 10th centile for height and weight, her lips are slightly dusky, she has good air entry bilaterally in her chest, and she has a normal heart rate at rest with a loud ejection systolic murmur at the upper left sternal edge with an associated thrill.
A chest x-ray reveals decreased vascular markings and a normal-sized heart. Electrocardiography (ECG) shows sinus rhythm with right axis deviation and deep S waves in V5 and V6.
What is the most likely diagnosis?Your Answer: Eisenmenger's syndrome
Correct Answer: Tetralogy of Fallot
Explanation:Tetralogy of Fallot (TOF) is a common cyanotic congenital heart condition characterized by four abnormalities. Symptoms are determined by the degree of shunting of deoxygenated blood from right to left, which is influenced by the degree of right ventricular outflow tract obstruction (RVOTO) and other ways blood can get to the lungs. Squatting can relieve cyanotic episodes by increasing peripheral vascular resistance. The child in question has a loud ejection systolic murmur at the upper left sternal edge in keeping with the turbulent flow of blood across the stenosed RVOT. Isolated pulmonary stenosis is a possible differential diagnosis, but the history of squatting is highly suggestive of TOF.
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This question is part of the following fields:
- Paediatrics
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Question 13
Incorrect
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A pair of individuals in their mid-thirties visit their GP seeking guidance on fertility. They have been engaging in unprotected sexual activity thrice a week for a year. The GP recommends conducting a semen analysis and measuring serum progesterone levels. What is the optimal time to measure serum progesterone levels?
Your Answer: On day 21 of the menstrual cycle
Correct Answer: 7 days prior to the expected next period
Explanation:To confirm ovulation, it is recommended to take a serum progesterone level 7 days before the expected next period. If the level is above 30 nmol/l, it indicates ovulation and other causes of infertility should be considered. However, if the level is below 30 nmol/l, it does not necessarily exclude the possibility of ovulation, but repeat testing is required. If the level remains consistently low, referral to a specialist is necessary. It is important to note that the length of a menstrual cycle can vary, so 7 days prior to the next period is a more accurate time to take the test than relying on day 21 of a 28-day cycle.
Infertility is a common issue that affects approximately 1 in 7 couples. It is important to note that around 84% of couples who have regular sexual intercourse will conceive within the first year, and 92% within the first two years. The causes of infertility can vary, with male factor accounting for 30%, unexplained causes accounting for 20%, ovulation failure accounting for 20%, tubal damage accounting for 15%, and other causes accounting for the remaining 15%.
When investigating infertility, there are some basic tests that can be done. These include a semen analysis and a serum progesterone test. The serum progesterone test is done 7 days prior to the expected next period, typically on day 21 for a 28-day cycle. The interpretation of the serum progesterone level is as follows: if it is less than 16 nmol/l, it should be repeated and if it remains consistently low, referral to a specialist is necessary. If the level is between 16-30 nmol/l, it should be repeated, and if it is greater than 30 nmol/l, it indicates ovulation.
It is important to counsel patients on lifestyle factors that can impact fertility. This includes taking folic acid, maintaining a healthy BMI between 20-25, and advising regular sexual intercourse every 2 to 3 days. Additionally, patients should be advised to quit smoking and limit alcohol consumption to increase their chances of conceiving.
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This question is part of the following fields:
- Gynaecology
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Question 14
Correct
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A 32-year-old man with inflammatory bowel disease undergoes emergency surgery involving resection of a portion of his bowel. At the clinico-pathological conference, the histological findings of the operative sample are discussed.
Which of the following features is most indicative of Crohn’s disease?Your Answer: Transmural inflammation
Explanation:Distinguishing Between Crohn’s Disease and Ulcerative Colitis: Histopathological Features
Inflammatory bowel disease (IBD) is a term used to describe two conditions: Crohn’s disease and ulcerative colitis. While both conditions share some similarities, they have distinct differences that can be identified through histopathological examination of surgical specimens.
Transmural inflammation, which affects all layers of the intestinal wall, is a hallmark feature of Crohn’s disease. This type of inflammation is not typically seen in ulcerative colitis. Additionally, Crohn’s disease often presents as skip lesions, meaning that affected areas are separated by healthy tissue. In contrast, ulcerative colitis typically presents as continuous disease limited to the large bowel.
Crypt abscesses, which are collections of inflammatory cells within the crypts of the intestinal lining, are more commonly seen in ulcerative colitis. Mucosal inflammation, which affects only the surface layer of the intestinal lining, is more typical of ulcerative colitis as well.
Other histopathological features that can help distinguish between Crohn’s disease and ulcerative colitis include the presence of rose thorn ulcers (deep ulcers with a characteristic appearance) in Crohn’s disease and lymphoid aggregates in Crohn’s disease but not in ulcerative colitis.
In summary, while Crohn’s disease and ulcerative colitis share some similarities, histopathological examination of surgical specimens can help differentiate between the two conditions based on the presence or absence of certain features.
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This question is part of the following fields:
- Colorectal
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Question 15
Incorrect
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You suspect your colleague John has been taking more ‘sick days’ than needed. You happened to see one of his social media posts of him out for lunch when he was allegedly at home because he was sick.
Which of the following is the most appropriate action?Your Answer: Report your friend to her educational supervisor
Correct Answer: Speak to your friend in private about what is really going on
Explanation:Appropriate Actions to Take When Concerned About a Friend’s Behavior
When you notice a friend’s behavior that is concerning, it can be difficult to know what to do. However, there are appropriate actions to take that can help your friend and maintain your relationship. The most appropriate action is to speak to your friend in private about what is really going on. This gives your friend the chance to open up to you and share any issues they may be going through. Reporting your friend to their educational or clinical supervisor should be done in stages, starting locally and working your way up. Spreading rumors about your friend is unprofessional and will not solve the issue. Sharing your concerns with another friend who knows your friend well can also be helpful, but it is important to approach your friend first. By taking appropriate actions, you can help your friend and maintain a healthy relationship.
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This question is part of the following fields:
- Ethics And Legal
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Question 16
Incorrect
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What is the life expectancy for a man in the UK?
Your Answer: 75–79 years
Correct Answer: 80–84 years
Explanation:The Remarkable Increase in Life Expectancy for Women in the UK
At the beginning of the twentieth century, the life expectancy for a woman in the UK was only 59 years old. However, due to a combination of factors such as reduced infant mortality, improved public health, modern medical advances, and the introduction of the welfare state, women in the UK can now expect to live an average of 82.5 years. This remarkable increase in life expectancy is a testament to the progress made in healthcare and social welfare in the UK.
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This question is part of the following fields:
- Statistics
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Question 17
Correct
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A 20-year-old female underwent an appendicectomy and was administered an antiemetic for her nausea and vomiting. However, she is now experiencing an oculogyric crisis and has a protruding tongue. Which antiemetic is the most probable cause of her symptoms?
Your Answer: Metoclopramide
Explanation:Extrapyramidal Effects of Antiemetic Drugs
Anti-nausea medications such as metoclopramide, domperidone, and cyclizine can have extrapyramidal effects, which involve involuntary muscle movements. Metoclopramide is known to cause acute dystonic reactions, which can result in facial and skeletal muscle spasms and oculogyric crisis. These effects are more common in young girls and women, as well as the elderly. However, they typically subside within 24 hours of stopping treatment with metoclopramide.
On the other hand, domperidone is less likely to cause extrapyramidal effects because it does not easily cross the blood-brain barrier. Cyclizine is also less likely to cause these effects, making it a safer option for those who are susceptible to extrapyramidal reactions. It is important to discuss any concerns about potential side effects with a healthcare provider before starting any new medication.
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This question is part of the following fields:
- Neurology
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Question 18
Correct
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An 80-year-old man with a history of recurrent falls attends the Elderly Care Clinic with his daughter. He also has a history of mild dementia, congestive heart failure, coronary artery disease, hypertension and type 2 diabetes. He takes furosemide, lisinopril, amitriptyline, aspirin, metoprolol, olanzapine and simvastatin. He lives by himself in a house in which he has lived for 30 years and has help with all activities of daily living. On examination, he appears frail, has mild bruising over both knees from recent falls and has reduced proximal lower-extremity muscle strength.
Which of the following interventions will decrease his risk of falling in the future?Your Answer: Balance and gait training physical exercises
Explanation:The Most Appropriate Interventions to Reduce Falls in the Elderly
Balance and gait training exercises are effective interventions to reduce falls in the elderly. On the other hand, continuing olanzapine and commencing donepezil have not been proven to reduce the risk of falls. Diuretics, such as furosemide, can increase the likelihood of falls, so stopping them is recommended. Additionally, amitriptyline has anticholinergic side-effects that can lead to confusion and falls, so discontinuing it is a quick and potentially effective intervention. Overall, a multifactorial approach that includes balance and gait training, medication review, and fall risk assessment is the most appropriate strategy to reduce falls in the elderly.
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This question is part of the following fields:
- Acute Medicine And Intensive Care
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Question 19
Correct
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A 72-year-old male patient arrives in hospital with a hip fracture. His wife mentions that he drinks around two bottles of wine per day. He is prescribed chlordiazepoxide, a benzodiazepine, for alcohol withdrawal.
What is the reason for using this medication in this situation?Your Answer: Alcohol withdrawal leads to gamma-aminobutyric acid (GABA) deficiency; benzodiazepines facilitate GABA-A binding to its receptor
Explanation:A 79-year-old man is brought to see his general practitioner by his daughter who has noticed that he is becoming increasingly forgetful and unsteady on his feet. Unfortunately his daughter does not know anything about his previous medical history or whether he takes any medications. Routine investigations reveal:
Investigation Result Normal Value
Haemoglobin 105 g/l 135–175 g/l
Mean corpuscular value 101 fl 76–98 fl
White cell count 7.2 × 109/l 4–11 × 109/l
Platelets 80 × 109/l 150–400 x 109/
Sodium 132 mmol/l 135–145 mmol/l
Potassium 4.8 mmol/l 3.5–5.0 mmol/l
Urea 1.3 mmol/l 2.5–6.5 mmol/l
Creatine 78 μmol/l 50–120 µmol/l
Random blood sugar 6.1 mmol/l 3.5–5.5 mmol/l
Given these results, which is the most likely cause of his symptoms? -
This question is part of the following fields:
- Pharmacology
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Question 20
Correct
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A 5-month-old baby is presented to the GP with a lump located on the groin, specifically lateral to the pubic tubercle. The parents report that they can push the lump in and it disappears, but it reappears when the baby cries. What is the most suitable course of action for definitive management?
Your Answer: Surgical reduction within 2 weeks
Explanation:Urgent treatment is necessary for inguinal hernias, while umbilical hernias typically resolve on their own.
This child is experiencing an inguinal hernia caused by a patent processus vaginalis. The typical symptom is a bulge located next to the pubic tubercle that appears when the child cries due to increased intra-abdominal pressure. In children, inguinal hernias are considered pathological and carry a high risk of incarceration, so surgical correction is necessary. The timing of surgery follows the six/two rule: correction within 2 days for infants under 6 weeks old, within 2 weeks for those under 6 months, and within 2 months for those under 6 years old. It’s important not to confuse inguinal hernias with umbilical hernias, which occur due to delayed closure of the passage through which the umbilical veins reached the fetus in utero. Umbilical hernias typically resolve on their own by the age of 3 and rarely require surgical intervention.
Paediatric Inguinal Hernia: Common Disorder in Children
Inguinal hernias are a frequent condition in children, particularly in males, as the testis moves from its location on the posterior abdominal wall down through the inguinal canal. A patent processus vaginalis may persist and become the site of subsequent hernia development. Children who present in the first few months of life are at the highest risk of strangulation, and the hernia should be repaired urgently. On the other hand, children over one year of age are at a lower risk, and surgery may be performed electively. For paediatric hernias, a herniotomy without implantation of mesh is sufficient. Most cases are performed as day cases, while neonates and premature infants are kept in the hospital overnight due to the recognized increased risk of postoperative apnoea.
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This question is part of the following fields:
- Surgery
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Question 21
Correct
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A 30-year-old woman with rheumatic fever has ongoing shortness of breath following her infection. You suspect she may have mitral stenosis.
What is the most suitable surface anatomical landmark to listen for this murmur?Your Answer: At the apex beat
Explanation:Surface Locations for Cardiac Auscultation
Cardiac auscultation is a crucial part of a physical examination to assess the heart’s function. The surface locations for cardiac auscultation are essential to identify the specific valve sounds. Here are the surface locations for cardiac auscultation:
1. Apex Beat: The mitral valve is best heard over the palpated apex beat. If it cannot be felt, then it should be assumed to be in the fifth intercostal space, mid-clavicular line.
2. Fifth Intercostal Space, Mid-Axillary Line: This location is too lateral to hear a mitral valve lesion in a non-dilated ventricle.
3. Second Intercostal Space, Left of the Sternum: The pulmonary valve is located in the second intercostal space, left of the sternum.
4. Fourth Intercostal Space, Left of the Sternum: The tricuspid valve is located in the fourth intercostal space, left of the sternum.
5. Xiphisternum: The xiphisternum is not used as a marker for cardiac auscultation, though it is used to guide echocardiography for certain standard views.
Knowing the surface locations for cardiac auscultation is crucial to identify the specific valve sounds and assess the heart’s function accurately.
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This question is part of the following fields:
- Cardiology
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Question 22
Correct
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A 35-year-old man presents to his GP with a complaint of rectal bleeding that has been going on for 2 days. The bleeding worsens after passing stools. He has recently increased his fibre intake, but he still finds it very difficult to pass stools. Defecation causes him severe pain that lasts for hours. During the examination, you try to perform a DRE, but the patient experiences severe pain, making it impossible to complete the procedure. What is the most probable diagnosis?
Your Answer: Anal fissure
Explanation:Common Anal Conditions and Their Differentiating Features
Anal conditions can cause discomfort and pain, but each has its own unique symptoms and characteristics. Anal fissures, for example, are caused by a tear in the sensitive skin-lined lower anal canal and cause acute pain on defecation. Treatment involves analgesia or topical glyceryl trinitrate (GTN) or diltiazem to relax the sphincter. Rectal prolapse, on the other hand, causes a mass protruding through the anus and may also result in constipation and/or faecal incontinence. Fistula in ano is an abnormal connection between the anal canal and perianal skin, while anal carcinoma is a rare but serious condition that presents with rectal bleeding, unexplained weight loss, persistent change in bowel habit, iron deficiency anaemia, and abdominal or rectal mass. Finally, haemorrhoids are vascular cushions in the anal canal that usually cause painless PR bleeding, but rarely cause discomfort. Understanding the differentiating features of these common anal conditions can help healthcare professionals provide appropriate treatment and management.
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This question is part of the following fields:
- Colorectal
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Question 23
Correct
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A 67-year-old man undergoes a subtotal colectomy and suffers iatrogenic injury to both ureters. He experiences renal failure and his serum potassium level is elevated at 6.9 mmol/L. An ECG is conducted, what is the probable result?
Your Answer: Peaked T waves
Explanation:The initial and prevalent indication of hyperkalaemia is the presence of elevated T waves.
Hyperkalaemia is a condition that can be detected through an electrocardiogram (ECG). The ECG findings associated with hyperkalaemia include tall and pointed T waves, which are the first signs of the condition. Additionally, there may be a loss of P waves, broad QRS complexes, and a sinusoidal wave pattern. In severe cases, ventricular fibrillation may also occur. These ECG findings can help diagnose hyperkalaemia and guide appropriate treatment.
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This question is part of the following fields:
- Surgery
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Question 24
Incorrect
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A 55-year-old woman with ulcerative colitis and primary sclerosing cholangitis visits her GP complaining of colicky abdominal pain and pruritus that has persisted despite taking ursodeoxycholic acid. She also reports unintentional weight loss of 5kg over two months. During the examination, the patient appears mildly jaundiced and a mass is palpable in the right hypochondrium. What screening test can be performed to detect the probable malignancy?
Your Answer: Carcinoembryonic antigen (CEA)
Correct Answer: CA 19-9
Explanation:Understanding Cholangiocarcinoma
Cholangiocarcinoma, also known as bile duct cancer, is a type of cancer that affects the bile ducts. The main risk factor for this type of cancer is primary sclerosing cholangitis. Symptoms of cholangiocarcinoma include persistent biliary colic, anorexia, jaundice, and weight loss. A palpable mass in the right upper quadrant, known as the Courvoisier sign, may also be present. Additionally, periumbilical lymphadenopathy, known as Sister Mary Joseph nodes, and left supraclavicular adenopathy, known as Virchow node, may be seen. CA 19-9 levels are often used to detect cholangiocarcinoma in patients with primary sclerosing cholangitis. It is important to be aware of these symptoms and risk factors in order to detect and treat cholangiocarcinoma early.
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This question is part of the following fields:
- Surgery
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Question 25
Correct
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A 65-year-old female presents with a three month history of headaches, shoulder pain and weight loss. Over this time she has lost approximately 6 kg in weight.
She describes early morning stiffness of the shoulders. Also, she has become aware of frontal headaches and has noticed tenderness of the scalp particularly when she combs her hair. She has little in her past medical history, she is a lifelong non-smoker and takes no medication.
During examination, she appears to be in good health with a blood pressure of 126/88 mmHg and a BMI of 23.4. Neurological examination is normal though she is tender over the shoulders and scalp.
Which of the following investigations would you select for this patient?Your Answer: Erythrocyte sedimentation rate (ESR)
Explanation:Temporal arthritis/Polymyalgia Rheumatica: A Condition of Unknown Aetiology
This condition, which is of unknown aetiology, typically affects the elderly and is associated with inflammation of the extracranial arteries. It is characterized by weight loss, proximal muscle stiffness and tenderness, headaches, and scalp tenderness. Elevated inflammatory markers, particularly erythrocyte sedimentation rate (ESR) and C reactive protein, are usually associated with it. Temporal arthritis may also be diagnosed through biopsy of the inflamed temporal artery, although false negatives may occur as the disease may patchily affect the artery.
It is important to recognize and treat the disease early to reduce morbidity and prevent blindness due to involvement of the optic arteries with retinal ischemia. The condition usually rapidly improves with steroid therapy, and the disease may be monitored through reduction of ESR.
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This question is part of the following fields:
- Neurology
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Question 26
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A 26-year-old female patient is currently being prescribed ferrous sulphate by her doctor to treat anaemia caused by menorrhagia.
What is the most frequently encountered adverse effect of taking oral iron supplements?Your Answer: Abdominal discomfort
Explanation:Ferrous Salts for Iron Deficiency Anaemia
Ferrous salts are frequently used to supplement iron in patients with iron deficiency anaemia. Ferrous ions (Fe2+) are more easily absorbed than ferric ions (Fe3+), making preparations of ferrous sulphate, ferrous gluconate, ferrous succinate, and ferrous fumarate all available for oral use. The most common side effects of oral iron treatment are gastrointestinal disturbances, which typically include abdominal discomfort, nausea, diarrhoea or constipation, and cramps.
However, acute toxicity or overdose of iron can cause severe complications such as necrotising gastritis with severe vomiting, haemorrhage, diarrhoea, and circulatory collapse. It is important to follow the recommended dosage and seek medical attention immediately if any symptoms of iron toxicity occur. Overall, ferrous salts are a useful option for treating iron deficiency anaemia, but caution must be taken to avoid potential adverse effects.
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This question is part of the following fields:
- Pharmacology
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Question 27
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A 56-year-old man on your contact list reports experiencing two small floaters that have appeared in his left eye, partially obstructing his vision over the past 24 hours. He has been working on computer screens more frequently than usual over the past week and wears glasses for myopia. He denies any pain or injury to either eye and has not visited an optometrist in several years. What is the best course of action for managing this situation?
Your Answer: Arrange same-day ophthalmology assessment
Explanation:If a patient presents with new-onset flashes or floaters, it is crucial to refer them urgently for assessment by an ophthalmologist within 24 hours. This is because the floaters could be a symptom of a retinal detachment, which requires immediate attention to prevent loss of sight. Therefore, the ophthalmology team may need to perform an urgent operation if a detachment is detected.
In this case, the patient has new-onset floaters, and there is no history of a foreign body or pain in her eye. Therefore, irrigation and antibiotic cover are unlikely to be helpful. While it is important to see her optician to ensure her glasses are the correct prescription, an urgent ophthalmology review should be organized first.
It is inappropriate to delay referral to ophthalmology by arranging a face-to-face assessment the following day. Additionally, the use of computer screens is an unlikely cause for floaters, and observing for further time does not adequately address potential sight-threatening causes.
Retinal detachment is a condition where the tissue at the back of the eye separates from the underlying pigment epithelium. This can cause vision loss, but if detected and treated early, it can be reversible. Risk factors for retinal detachment include diabetes, myopia, age, previous cataract surgery, and eye trauma. Symptoms may include new onset floaters or flashes, sudden painless visual field loss, and reduced peripheral and central vision. If the macula is involved, visual outcomes can be much worse. Diagnosis is made through fundoscopy, which may show retinal folds or a lost red reflex. Urgent referral to an ophthalmologist is necessary for assessment and treatment.
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This question is part of the following fields:
- Ophthalmology
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Question 28
Correct
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A 50-year-old woman presents to the rheumatology clinic with joint pain, weight loss, a vasculitic rash, and overall fatigue. Upon examination, she has elevated inflammatory markers, blood and protein in her urine, and positive MPO ANCA antibodies. She is urgently referred to renal physicians and undergoes a renal biopsy, which reveals crescentic glomerulonephritis. The diagnosis is microscopic polyangiitis. What is the most suitable initial treatment?
Your Answer: IV methylprednisolone
Explanation:Treatment Options for ANCA Vasculitis
In patients with a new diagnosis of ANCA vasculitis and multi-organ involvement, it is crucial to start reducing inflammation as soon as possible. The most appropriate initial therapy is IV steroids due to their rapid onset of action. Azathioprine is used for maintenance therapy and preventing relapse, but it takes several weeks to have its full effect and is not suitable for organ-threatening disease. Cyclophosphamide is the next choice of treatment and is often used in combination with IV steroids. Plasma exchange is used in severe cases, but its benefit over other therapies is still unclear. Rituximab is becoming more popular as an alternative to cyclophosphamide and has been shown to be as effective at inducing remission. However, all patients will receive IV steroids before receiving a definitive agent such as cyclophosphamide or rituximab. In patients with pulmonary haemorrhage or rapid deterioration, plasma exchange should be considered as a means of reducing antibody titres. Proper treatment is essential for managing ANCA vasculitis and preventing further complications.
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This question is part of the following fields:
- Nephrology
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Question 29
Incorrect
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A 50-year-old woman is suffering from a fungating metastatic breast cancer and is experiencing distress due to the foul-smelling discharge from the affected breast. This is causing significant social embarrassment. What is the best treatment option to alleviate this symptom?
Your Answer: Topical Eumovate
Correct Answer: Oral metronidazole or gel
Explanation:Managing Foul Odors in Palliative Care
In palliative care, patients with fungating tumors may experience unpleasant smells caused by anaerobic organisms. Metronidazole is a medication that can help improve these odors by targeting the infecting organisms. Additionally, charcoal dressings can be used to absorb malodorous substances and provide some relief to patients.
It is important for healthcare professionals to be familiar with prescribing in palliative care. The British National Formulary (BNF) offers a helpful section on this topic, including introductory information that is often tested in exams. By utilizing these resources and strategies, healthcare providers can effectively manage foul odors and improve the quality of life for their patients in palliative care.
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This question is part of the following fields:
- General Practice
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Question 30
Correct
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What condition is non-alcoholic steatohepatitis linked to?
Your Answer: Insulin resistance
Explanation:Non-Alcoholic Steatohepatitis (NASH)
Non-alcoholic steatohepatitis (NASH) is a liver condition that is linked to insulin resistance, hyperlipidaemia, and chronic moderately elevated liver enzymes. Unlike alcoholic liver disease, NASH is not caused by excessive alcohol consumption. Instead, it is associated with metabolic disorders such as obesity, type 2 diabetes, and high blood pressure.
Diagnosing NASH requires a liver biopsy, which is the only way to confirm the presence of lesions that are suggestive of ethanol intake in a patient who consumes less than 40 g of alcohol per week. It is important to note that NASH is not a benign condition and can lead to serious complications such as cryptogenic cirrhosis, which is a type of liver disease that can be fatal.
To prevent NASH, it is important to maintain a healthy lifestyle by eating a balanced diet, exercising regularly, and avoiding excessive alcohol consumption.
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This question is part of the following fields:
- Endocrinology
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