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Question 1
Incorrect
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A 24-year-old male comes to his doctor complaining of pain and swelling in his left testis for the past week. He is sexually active and has had multiple partners of both genders in the last year. During the examination, the doctor finds that the left testis is tender and swollen, but the patient has no fever. The doctor takes urethral swabs to determine the most probable causative organism.
What is the likely pathogen responsible for the patient's symptoms?Your Answer: Neisseria gonorrhoeae
Correct Answer: Chlamydia trachomatis
Explanation:Chlamydia trachomatis is the most common cause of acute epididymo-orchitis in sexually active young adults. This patient’s symptoms and signs are consistent with epididymo-orchitis, and the timing suggests this diagnosis over testicular torsion. While mumps can also cause epididymo-orchitis, it is less common and not supported by the absence of other symptoms. In men over 35 years old, E. coli is the most common cause, but given this patient’s age and sexual history, chlamydia is the most likely culprit. Neisseria gonorrhoeae is the second most common cause in this age group.
Epididymo-orchitis is a condition where the epididymis and/or testes become infected, leading to pain and swelling. It is commonly caused by infections spreading from the genital tract or bladder, with Chlamydia trachomatis and Neisseria gonorrhoeae being the usual culprits in sexually active younger adults, while E. coli is more commonly seen in older adults with a low-risk sexual history. Symptoms include unilateral testicular pain and swelling, with urethral discharge sometimes present. Testicular torsion, which can cause ischaemia of the testicle, is an important differential diagnosis and needs to be excluded urgently, especially in younger patients with severe pain and an acute onset.
Investigations are guided by the patient’s age, with sexually transmitted infections being assessed in younger adults and a mid-stream urine (MSU) being sent for microscopy and culture in older adults with a low-risk sexual history. Management guidelines from the British Association for Sexual Health and HIV (BASHH) recommend ceftriaxone 500 mg intramuscularly as a single dose, plus doxycycline 100 mg orally twice daily for 10-14 days if the organism causing the infection is unknown. Further investigations are recommended after treatment to rule out any underlying structural abnormalities.
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This question is part of the following fields:
- Surgery
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Question 2
Incorrect
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An 80-year-old woman has been suffering from Paget's disease of bone for over a decade. Lately, she has been experiencing increased pain in her lower back and hip region even when at rest. Upon conducting an X-ray, a destructive mass is observed in her bony pelvis. What is the probable diagnosis?
Your Answer: Multiple myeloma
Correct Answer: Osteosarcoma
Explanation:Paget’s Disease of Bone
Paget’s disease of bone is a condition that typically affects individuals in their later years. It is characterized by a disruption in the normal process of bone repair, resulting in the formation of weak bones that are prone to fractures. Specifically, the repair process ends at the stage of vascular osteoid bone, which is not as strong as fully mineralized bone.
Unfortunately, Paget’s disease of bone can also lead to complications such as osteogenic sarcoma, which occurs in approximately 5% of cases. As such, it is important for individuals with this condition to receive appropriate medical care and monitoring to prevent further complications.
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This question is part of the following fields:
- Oncology
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Question 3
Incorrect
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A 65-year-old woman visits her GP complaining of a persistent headache that has been bothering her for two weeks. The pain is more intense on the right side and is aggravated when she combs her hair. She also experiences discomfort in her jaw when eating. Her neurological and fundoscopy examinations reveal no abnormalities, and she is referred to the emergency department.
Upon admission, the patient is prescribed high-dose oral prednisolone and undergoes a temporal artery biopsy, which yields normal results. What is the next most appropriate course of action for her treatment?Your Answer: Stop high-dose prednisolone and refer to neurology clinic
Correct Answer: Continue high-dose prednisolone and repeat biopsy
Explanation:Performing an emergency computed tomography (CT) of the brain is not necessary for this patient. Emergency CT head scans are typically reserved for cases of head injury with symptoms such as reduced GCS, repeated vomiting, skull base fracture signs, post-traumatic seizures, or focal neurological deficits. Elderly patients may require a CT scan if they have experienced a fall with head injury or confusion.
Stopping high-dose prednisolone and referring the patient to a neurology clinic is not recommended. With a high suspicion of GCA, it is crucial to continue corticosteroid treatment to prevent inflammation from spreading to the eye. Any vision changes caused by GCA are typically irreversible, making it an acute problem that cannot wait for a referral to a neurology clinic.
Switching the patient to a lower dose of oral prednisolone is not advised. There is no evidence to suggest that reducing the dose of prednisolone is beneficial for GCA if the biopsy is negative. It is important to remember that a negative biopsy result may be due to skip lesions and not because the diagnosis is less likely.
Temporal arthritis, also known as giant cell arthritis, is a condition that affects medium and large-sized arteries and is of unknown cause. It typically occurs in individuals over the age of 50, with the highest incidence in those in their 70s. Early recognition and treatment are crucial to minimize the risk of complications, such as permanent loss of vision. Therefore, when temporal arthritis is suspected, urgent referral for assessment by a specialist and prompt treatment with high-dose prednisolone is necessary.
Temporal arthritis often overlaps with polymyalgia rheumatica, with around 50% of patients exhibiting features of both conditions. Symptoms of temporal arthritis include headache, jaw claudication, and tender, palpable temporal artery. Vision testing is a key investigation in all patients, as anterior ischemic optic neuropathy is the most common ocular complication. This results from occlusion of the posterior ciliary artery, leading to ischemia of the optic nerve head. Fundoscopy typically shows a swollen pale disc and blurred margins. Other symptoms may include aching, morning stiffness in proximal limb muscles, lethargy, depression, low-grade fever, anorexia, and night sweats.
Investigations for temporal arthritis include raised inflammatory markers, such as an ESR greater than 50 mm/hr and elevated CRP. A temporal artery biopsy may also be performed, and skip lesions may be present. Treatment for temporal arthritis involves urgent high-dose glucocorticoids, which should be given as soon as the diagnosis is suspected and before the temporal artery biopsy. If there is no visual loss, high-dose prednisolone is used. If there is evolving visual loss, IV methylprednisolone is usually given prior to starting high-dose prednisolone. Urgent ophthalmology review is necessary, as visual damage is often irreversible. Other treatments may include bone protection with bisphosphonates and low-dose aspirin.
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This question is part of the following fields:
- Musculoskeletal
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Question 4
Incorrect
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A 9-year-old boy comes to his general practitioner complaining of severe pain in his right elbow area. He reports falling off his bike and landing on his outstretched arm.
During the examination of the affected limb, the radial pulse appears normal. The patient experiences weakness in finger flexion at the proximal interphalangeal joints in all digits, with the index and middle fingers showing particular weakness. The patient has no feeling in the palmar aspect of the thumb, index finger, and middle finger. Finger extension and abduction remain unaffected.
Which of these findings is most likely to be linked to this injury?Your Answer: Loss of thumb adduction
Correct Answer: Persistent extension of the index and middle fingers when the boy attempts to make a fist
Explanation:Understanding Nerve Injuries in the Hand: Symptoms and Causes
When a child falls on their outstretched hand, it can result in a supracondylar fracture of the humerus. This type of injury can damage the brachial artery and median nerve, leading to symptoms such as persistent extension of the index and middle fingers when attempting to make a fist. Loss of sensation over the palmar aspect of the lateral three digits and weakness of finger flexion at the proximal interphalangeal joints are also common with median nerve injury. Additionally, the inability to flex the metacarpophalangeal joints of the index and middle fingers (known as the ‘hand of benediction’) is caused by loss of innervation of the first and second lumbrical muscles. Other symptoms of nerve injuries in the hand include loss of thumb adduction, loss of sensation over the medial border of the hand, loss of flexion at the distal interphalangeal joint of the little finger, and loss of function of the hypothenar muscles. Understanding these symptoms and their causes can help with early diagnosis and treatment of nerve injuries in the hand.
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This question is part of the following fields:
- Neurology
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Question 5
Incorrect
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An anaesthetist administered anaesthesia to a 35-year-old pregnant woman in labour. The anaesthetist palpated the ischial spine transvaginally and then injected a local anaesthetic.
Injection of a local anaesthetic at this location anaesthetises a nerve that contains fibres from which of the following vertebral segments?Your Answer: L4, L5, S1
Correct Answer: S2, S3, S4
Explanation:Pudendal Nerve Block for Perineal Pain Relief during Childbirth
During childbirth, perineal pain can be relieved by anaesthetising the pudendal nerve. This nerve contains fibres from the S2, S3, and S4 anterior rami. To locate the nerve, the obstetrician palpates the ischial spine transvaginally as the nerve passes close to this bony feature. It is important to note that the pudendal nerve does not receive fibres from S5 or S1. The superior and inferior gluteal nerves receive fibres from L4 to S1 and L5 to S2, respectively, but they are not the nerves being targeted in this procedure.
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This question is part of the following fields:
- Neurology
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Question 6
Correct
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A 36-year-old teacher presents to the emergency department with a complaint of shin pain that has been bothering her for the past 2 months. The pain is specifically located over the tibia and is relieved by rest. However, she is worried as she has a hiking trip planned for the weekend. She has not undergone any hospital investigations yet. On examination, there is diffuse tenderness over the tibia. She expresses her apologies for coming to the emergency department, stating that her GP could not offer an appointment for the next 2 weeks and she needs advice before the weekend.
What is the next step in managing this patient?Your Answer: Undertake an x-ray of the legs
Explanation:Tibial stress syndrome is the probable diagnosis, but it is important to rule out a stress fracture of the tibia before discharging the patient. An x-ray of the legs should be ordered as the initial investigation, even though symptoms may precede x-ray changes by a few weeks. The Ottawa ankle rules cannot be used to determine if an x-ray is necessary for a tibial stress fracture. While CT and MRI are more sensitive, an x-ray should be performed first, and further imaging may be required if there is no definitive answer. A plaster cast would not be appropriate at this stage, and an orthopaedic referral is not necessary. If the x-ray rules out a tibial stress fracture, an appropriate management plan would be to rest, elevate the leg, and repeatedly apply ice packs to the affected area.
Stress fractures are small hairline fractures that can occur due to repetitive activity and loading of normal bone. Although they can be painful, they are typically not displaced and do not cause surrounding soft tissue injury. In some cases, stress fractures may present late, and callus formation may be visible on radiographs. Treatment for stress fractures may vary depending on the severity of the injury. In cases where the injury is associated with severe pain and presents at an earlier stage, immobilization may be necessary. However, injuries that present later may not require formal immobilization and can be treated with tailored immobilization specific to the site of injury.
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This question is part of the following fields:
- Musculoskeletal
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Question 7
Incorrect
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A 68-year-old woman undergoes a lumpectomy for a T2 hormone receptor-positive carcinoma in her right breast. The pathology report shows cancerous cells at the margins of the resected specimen. Should the patient receive any additional non-surgical treatment?
Your Answer: Ipsilateral chest wall and regional lymph node radiotherapy + course of trastuzumab
Correct Answer: Ipsilateral chest wall and regional lymph node radiotherapy
Explanation:Adjuvant ipsilateral chest wall and regional lymph node radiotherapy are recommended for patients with positive axillary lymph nodes and residual tumor at resection margins post-mastectomy, as studies have shown a beneficial effect on overall survival and locoregional recurrence. However, adding letrozole or trastuzumab is not appropriate for this patient with triple-negative carcinoma, as these treatments are used for ER+ and HER2+ cancers, respectively. It is also not necessary to irradiate both breasts/axillae in cases of unilateral breast cancer. No adjuvant treatment is not appropriate in this case, as there is residual disease that needs to be managed. These recommendations are based on the Nice guideline NG101 (2018).
Breast cancer management varies depending on the stage of the cancer, type of tumor, and patient’s medical history. Treatment options may include surgery, radiotherapy, hormone therapy, biological therapy, and chemotherapy. Surgery is typically the first option for most patients, except for elderly patients with metastatic disease who may benefit more from hormonal therapy. Prior to surgery, an axillary ultrasound is recommended for patients without palpable axillary lymphadenopathy, while those with clinically palpable lymphadenopathy require axillary node clearance. The type of surgery offered depends on various factors, such as tumor size, location, and type. Breast reconstruction is also an option for patients who have undergone a mastectomy.
Radiotherapy is recommended after a wide-local excision to reduce the risk of recurrence, while mastectomy patients may receive radiotherapy for T3-T4 tumors or those with four or more positive axillary nodes. Hormonal therapy is offered if tumors are positive for hormone receptors, with tamoxifen being used in pre- and perimenopausal women and aromatase inhibitors like anastrozole in postmenopausal women. Tamoxifen may increase the risk of endometrial cancer, venous thromboembolism, and menopausal symptoms. Biological therapy, such as trastuzumab, is used for HER2-positive tumors but cannot be used in patients with a history of heart disorders. Chemotherapy may be used before or after surgery, depending on the stage of the tumor and the presence of axillary node disease. FEC-D is commonly used in the latter case.
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This question is part of the following fields:
- Surgery
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Question 8
Incorrect
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What vitamin is utilized to treat confusion in individuals with chronic alcoholism?
Your Answer: Vitamin B12
Correct Answer: Thiamine
Explanation:Wernicke-Korsakoff Syndrome
Wernicke-Korsakoff syndrome is a condition that arises due to insufficient intake of thiamine, as well as impaired absorption and storage. This condition is known to cause various symptoms, including dementia, nystagmus, paralysis of extra ocular muscles, ataxia, and retrograde amnesia, particularly in individuals who struggle with alcoholism.
The inadequate intake of thiamine is often associated with chronic alcoholism, as alcohol can interfere with the body’s ability to absorb and store thiamine. This can lead to a deficiency in the vitamin, which can cause damage to the brain and nervous system. The symptoms of Wernicke-Korsakoff syndrome can be severe and can significantly impact an individual’s quality of life.
It is essential to understand the causes and symptoms of Wernicke-Korsakoff syndrome to ensure that individuals who are at risk receive the necessary treatment and support. With proper care and management, it is possible to manage the symptoms of this condition and improve an individual’s overall health and well-being.
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This question is part of the following fields:
- Emergency Medicine
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Question 9
Incorrect
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A 45-year-old woman with Addison's disease has arrived at a remote clinic. She reports that she has finished her supply of hydrocortisone, which she typically takes 20 mg in the morning and 10 mg in the evening. Unfortunately, the clinic does not have hydrocortisone available, but prednisolone is an option until hydrocortisone can be obtained. What is the daily dosage of prednisolone that is equivalent to her usual hydrocortisone dosage?
Your Answer: 2.5 mg
Correct Answer: 7.5 mg
Explanation:Dosage Calculation for Hydrocortisone
When calculating the dosage for hydrocortisone, it is important to consider the equivalent dosage of 1 mg to 4 mg of hydrocortisone. In the case of a patient requiring 7.5 mg of hydrocortisone, it is ideal to administer a combination of 2.5 mg and 5 mg tablets. However, if 2.5 mg tablets are not available, it is better to administer a higher dosage of 10 mg rather than under-dose the patient. This is especially important in cases where the patient is experiencing stress or illness. It is crucial to accurately calculate the dosage of hydrocortisone to ensure the patient receives the appropriate treatment.
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This question is part of the following fields:
- Endocrinology
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Question 10
Incorrect
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As an FY1 on a paediatric ward, you are faced with a 13-year-old female patient who is suffering from anorexia and is refusing to be tube fed. After assessing her capacity, you have determined that she has the ability to refuse. However, her parents are in disagreement with her decision. What steps do you take in this situation?
Your Answer: Section her under section 2 of the Mental Health Act
Correct Answer: Inform her that as she is under 16 she cannot refuse treatment
Explanation:According to the family law reform act of 1969, individuals who are 16 years or older have the right to provide consent for treatment. However, if they are under 18 years of age, they cannot refuse treatment unless one parent provides consent, even if the other parent disagrees. It would not be suitable to seek guidance from the courts at this point.
Guidelines for Obtaining Consent in Children
The General Medical Council has provided guidelines for obtaining consent in children. According to these guidelines, young people who are 16 years or older can be treated as adults and are presumed to have the capacity to make decisions. However, for children under the age of 16, their ability to understand what is involved determines whether they have the capacity to decide. If a competent child refuses treatment, a person with parental responsibility or the court may authorize investigation or treatment that is in the child’s best interests.
When it comes to providing contraceptives to patients under 16 years of age, the Fraser Guidelines must be followed. These guidelines state that the young person must understand the professional’s advice, cannot be persuaded to inform their parents, is likely to begin or continue having sexual intercourse with or without contraceptive treatment, and will suffer physical or mental health consequences without contraceptive treatment. Additionally, the young person’s best interests require them to receive contraceptive advice or treatment with or without parental consent.
Some doctors use the term Fraser competency when referring to contraception and Gillick competency when referring to general issues of consent in children. However, rumors that Victoria Gillick removed her permission to use her name or applied copyright have been debunked. It is important to note that in Scotland, those with parental responsibility cannot authorize procedures that a competent child has refused.
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This question is part of the following fields:
- Paediatrics
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