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Question 1
Incorrect
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A 50-year-old woman, who has a history of rheumatoid arthritis, is planning to undergo a laparoscopic cholecystectomy. What pre-operative imaging is necessary?
Your Answer: CT cervical spine
Correct Answer: Anteroposterior and lateral cervical spine radiographs
Explanation:Although rare, atlantoaxial subluxation is a significant complication of rheumatoid arthritis due to its potential to cause cervical cord compression. To prevent this, preoperative screening using anteroposterior and lateral cervical spine radiographs is essential. This screening ensures that the patient is fitted with a C-spine collar and that their neck is not hyperextended during intubation. While hand radiographs aid in diagnosis, they are not required before surgery. Although not necessary for screening, CT scans of the cervical spine may be beneficial if any abnormalities are detected.
Rheumatoid arthritis (RA) is a condition that can lead to various complications beyond joint pain and inflammation. These complications can affect different parts of the body, including the respiratory system, eyes, bones, heart, and immune system. Some of the respiratory complications associated with RA include pulmonary fibrosis, pleural effusion, and bronchiolitis obliterans. Eye-related complications may include keratoconjunctivitis sicca, scleritis, and corneal ulceration. RA can also increase the risk of osteoporosis, ischaemic heart disease, infections, and depression. Less common complications may include Felty’s syndrome and amyloidosis.
It is important to note that these complications may not affect all individuals with RA and the severity of the complications can vary. However, it is essential for individuals with RA to be aware of these potential complications and to work closely with their healthcare providers to manage their condition and prevent or address any complications that may arise. Regular check-ups and monitoring of symptoms can help detect and manage any complications early on.
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This question is part of the following fields:
- Musculoskeletal
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Question 2
Incorrect
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A 42-year-old female complains of fatigue and widespread pain for the past six months, which worsens with stress or exposure to cold. Physical examination reveals multiple tender points throughout her body, but all other findings are normal. Despite normal results from autoimmune, inflammatory, and thyroid function tests, what treatment is most likely to be effective for her probable diagnosis?
Your Answer: Trigger point desensitisation therapy
Correct Answer: Cognitive behavioural therapy
Explanation:Managing Fibromyalgia: A Multidisciplinary Approach
Fibromyalgia is a syndrome that causes widespread pain throughout the body, particularly in specific anatomical sites. It is more common in women and typically presents between the ages of 30-50. Other features include lethargy, cognitive impairment, sleep disturbance, headaches, and dizziness. Diagnosis is clinical and based on the presence of tender points on the body. Management of fibromyalgia is often difficult and requires a tailored, multidisciplinary approach. While there is a lack of evidence and guidelines to guide practice, consensus guidelines from the European League against Rheumatism (EULAR) and a BMJ review suggest that aerobic exercise, cognitive behavioural therapy, and medication such as pregabalin, duloxetine, and amitriptyline may be helpful.
Managing fibromyalgia requires a comprehensive approach that addresses the physical, emotional, and psychological aspects of the condition. While there is no cure for fibromyalgia, a combination of treatments can help manage symptoms and improve quality of life. Aerobic exercise has the strongest evidence base and can help reduce pain and fatigue. Cognitive behavioural therapy can help patients develop coping strategies and improve their mental health. Medications such as pregabalin, duloxetine, and amitriptyline can also be effective in managing pain and other symptoms. However, it is important to note that treatment should be tailored to the individual patient and may require a trial-and-error approach. With a multidisciplinary approach, patients with fibromyalgia can find relief and improve their overall well-being.
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This question is part of the following fields:
- Musculoskeletal
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Question 3
Incorrect
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A 50-year-old woman is currently admitted to orthopaedics after breaking her femur in a road traffic accident. Two days later, she develops a fever of 38.3ºC and becomes breathless. She is also confused and has retinal haemorrhages on fundoscopy. After conducting an A-E assessment and ruling out any rashes, a chest X-ray is performed and comes back normal. What is the most probable diagnosis?
Your Answer: Acute respiratory distress syndrome (ARDS)
Correct Answer: Fat embolism
Explanation:Understanding Fat Embolism: Diagnosis, Clinical Features, and Treatment
Fat embolism is a medical condition that occurs when fat globules enter the bloodstream and obstruct blood vessels. This condition is commonly seen in patients with long bone fractures, particularly in the femur and tibia. The diagnosis of fat embolism is based on clinical features, including respiratory symptoms such as tachypnea, dyspnea, and hypoxia, as well as dermatological symptoms such as a red or brown petechial rash. CNS symptoms such as confusion and agitation may also be present. Imaging may not always show vascular occlusion, but a ground glass appearance may be seen at the periphery.
Prompt fixation of long bone fractures is crucial in the treatment of fat embolism. However, there is some debate regarding the benefit versus risk of medullary reaming in femoral shaft or tibial fractures in terms of increasing the risk of fat embolism. DVT prophylaxis and general supportive care are also important in the management of this condition. While fat embolism can be a serious and potentially life-threatening condition, prompt diagnosis and treatment can improve outcomes for patients.
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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 fifty-six-year-old man visits his GP with complaints of recurring headaches and limb pain that have persisted for six months. Despite taking ibuprofen and paracetamol, he has not experienced any relief. The headaches occur without any preceding symptoms, last for less than an hour, and do not cause dizziness or nausea. They occur 4-6 times per day. Additionally, he has noticed a loss of hearing in his left ear. The GP conducts some blood tests, which reveal elevated alkaline phosphatase (ALP), normal calcium, normal phosphate, and normal thyroid hormone levels. Based on the most probable diagnosis, what is the most appropriate treatment?
Your Answer: Triptans
Correct Answer: Bisphosphonates
Explanation:The preferred treatment for Paget’s disease of the bone is bisphosphonates, which inhibit osteoblastic activity. This patient’s symptoms, including bone pain, headaches, and hearing loss, along with elevated ALP levels, suggest a diagnosis of Paget’s disease. While calcium supplements may be useful for other conditions, they are not indicated for Paget’s disease, as calcium levels are typically normal. Triptans, codeine, and a Cochlear implant are also not appropriate treatments for this condition.
Understanding Paget’s Disease of the Bone
Paget’s disease of the bone is a condition characterized by increased and uncontrolled bone turnover. It is believed to be caused by excessive osteoclastic resorption followed by increased osteoblastic activity. Although it is a common condition, affecting 5% of the UK population, only 1 in 20 patients experience symptoms. The most commonly affected areas are the skull, spine/pelvis, and long bones of the lower extremities. Predisposing factors include increasing age, male sex, northern latitude, and family history.
Symptoms of Paget’s disease include bone pain, particularly in the pelvis, lumbar spine, and femur. The stereotypical presentation is an older male with bone pain and an isolated raised alkaline phosphatase (ALP). Classical, untreated features include bowing of the tibia and bossing of the skull. Diagnosis is made through blood tests, which show raised ALP, and x-rays, which reveal osteolysis in early disease and mixed lytic/sclerotic lesions later.
Treatment is indicated for patients experiencing bone pain, skull or long bone deformity, fracture, or periarticular Paget’s. Bisphosphonates, either oral risedronate or IV zoledronate, are the preferred treatment. Calcitonin is less commonly used now. Complications of Paget’s disease include deafness, bone sarcoma (1% if affected for > 10 years), fractures, skull thickening, and high-output cardiac failure.
Overall, understanding Paget’s disease of the bone is important for early diagnosis and management of symptoms and complications.
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This question is part of the following fields:
- Musculoskeletal
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Question 5
Incorrect
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During a routine examination for private medical insurance, a 30-year-old female with a history of Ehler-Danlos syndrome presents with widespread bruising and a faint diastolic murmur on chest auscultation. What is the most likely complication of Ehler-Danlos that she is experiencing?
Your Answer: Aortic dissection
Correct Answer: Aortic regurgitation
Explanation:Aortic regurgitation is a cardiac complication that can arise from Ehler-Danlos syndrome.
Ehler-Danlos syndrome is a genetic disorder that affects collagen, leading to increased tissue elasticity. The condition has various subtypes, but type III collagen is typically affected in most cases, and it is inherited in an autosomal dominant manner.
When a diastolic murmur is present, the most probable causes are mitral stenosis and aortic regurgitation. Individuals with Ehler-Danlos syndrome are more likely to experience valvular incompetence due to the connective tissue abnormalities. Although aortic dissection is another potential complication of Ehler-Danlos, it is unlikely to manifest in this manner.
Atrial and ventricular septal defects are not commonly linked to Ehler-Danlos syndrome.
Ehler-Danlos syndrome is a genetic disorder that affects the connective tissue, specifically type III collagen. This causes the tissue to be more elastic than usual, resulting in increased skin elasticity and joint hypermobility. Common symptoms include fragile and easily bruised skin, as well as recurrent joint dislocations. Additionally, individuals with Ehler-Danlos syndrome may be at risk for serious complications such as aortic regurgitation, mitral valve prolapse, aortic dissection, subarachnoid hemorrhage, and angioid retinal streaks.
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This question is part of the following fields:
- Musculoskeletal
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Question 6
Incorrect
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A 27-year-old man complains of left knee pain, dysuria, and a painful right eye. He recently returned from a trip to Thailand where he had unprotected sex. Upon examination, his left knee is slightly swollen and painful with limited range of motion. The right conjunctiva is inflamed. His respiratory rate is 18/min, heart rate is 78 bpm, and temperature is 37.6 ºC. Joint aspiration reveals turbid synovial fluid with a white cell count of 35,000 cells/mm3 (<200) and 65% polymorphonuclear cells (<30%). Culture results are negative. What is the most likely diagnosis?
Your Answer: Septic arthritis
Correct Answer: Reactive arthritis
Explanation:Reactive arthritis is a condition that can develop after an infection, where the organism responsible cannot be detected in the joint. A patient who presents with arthritis, urethritis, and conjunctivitis, and has recently traveled, is highly suspicious of reactive arthritis. This condition is often associated with sexually transmitted diseases, with Chlamydia trachomatis being the most likely causative organism. However, the synovial fluid culture is negative as the organism cannot be recovered from the joint.
Gonococcal arthritis, on the other hand, is caused by disseminated gonococcal infection. It typically presents with arthritis-dermatitis syndrome and can progress to septic arthritis if left untreated. While it is a good differential diagnosis for young, sexually active males with mono- or oligoarthritis, it does not explain the other symptoms of dysuria and painful eye movements.
Gout is unlikely in a young male without predisposing factors and would not account for the patient’s urethritis and conjunctivitis. Rheumatoid arthritis, which typically presents as symmetrical arthritis affecting small joints such as PIP, MCP, or wrist joints, is also an unlikely diagnosis. Additionally, keratoconjunctivitis sicca is the most common ocular complication associated with rheumatoid arthritis, rather than conjunctivitis.
Reactive arthritis is a type of seronegative spondyloarthropathy that is associated with HLA-B27. It was previously known as Reiter’s syndrome, which was characterized by a triad of urethritis, conjunctivitis, and arthritis following a dysenteric illness during World War II. However, further studies revealed that patients could also develop symptoms after a sexually transmitted infection, now referred to as sexually acquired reactive arthritis (SARA). Reactive arthritis is defined as arthritis that occurs after an infection where the organism cannot be found in the joint. The post-STI form is more common in men, while the post-dysenteric form has an equal incidence in both sexes. The most common organisms associated with reactive arthritis are listed in the table below.
Management of reactive arthritis is mainly symptomatic, with analgesia, NSAIDs, and intra-articular steroids being used. Sulfasalazine and methotrexate may be used for persistent disease. Symptoms usually last for less than 12 months. It is worth noting that the term Reiter’s syndrome is no longer used due to the fact that Reiter was a member of the Nazi party.
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This question is part of the following fields:
- Musculoskeletal
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Question 7
Correct
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A 75-year-old male presents with bilateral buttock pain that radiates through his thighs and calves. The pain worsens with standing and walking, limiting his ability to walk for more than 10 minutes or 2 to 3 blocks. However, the pain is relieved by sitting or forward flexion of the spine. There is no history of bladder or bowel dysfunction, and motor and sensory neurological examination of the lower limbs is normal. What is the most probable cause of these symptoms?
Your Answer: Lumbar spinal stenosis
Explanation:AS, also known as ankylosing spondylitis, is a type of arthritis that primarily affects the spine. It causes inflammation and stiffness in the joints between the vertebrae, leading to fusion of the spine over time. AS can also affect other joints, such as the hips, shoulders, and knees, and can cause fatigue and eye inflammation. It is a chronic condition that typically develops in early adulthood and is more common in men than women. There is no cure for AS, but treatment options such as medication, exercise, and physical therapy can help manage symptoms and improve quality of life.
Lumbar spinal stenosis is a condition where the central canal in the lower back is narrowed due to degenerative changes, such as a tumor or disk prolapse. Patients may experience back pain, neuropathic pain, and symptoms similar to claudication. However, one distinguishing factor is that the pain is positional, with sitting being more comfortable than standing, and walking uphill being easier than downhill. Degenerative disease is the most common cause, starting with changes in the intervertebral disk that lead to disk bulging and collapse. This puts stress on the facet joints, causing cartilage degeneration, hypertrophy, and osteophyte formation, which narrows the spinal canal and compresses the nerve roots of the cauda equina. MRI scanning is the best way to diagnose lumbar spinal stenosis, and treatment may involve a laminectomy.
Overall, lumbar spinal stenosis is a condition that affects the lower back and can cause a range of symptoms, including pain and discomfort. It is often caused by degenerative changes in the intervertebral disk, which can lead to narrowing of the spinal canal and compression of the nerve roots. Diagnosis is typically done through MRI scanning, and treatment may involve a laminectomy. It is important to note that the pain associated with lumbar spinal stenosis is positional, with sitting being more comfortable than standing, and walking uphill being easier than downhill.
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This question is part of the following fields:
- Musculoskeletal
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Question 8
Correct
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A 42-year-old woman complains of pain in her ring finger. She mentions being bitten by an insect on the same hand a few days ago. Upon examination, her entire digit is swollen, but the swelling stops at the distal palmar crease, and she keeps her finger strictly flexed. Palpation and passive extension of the digit cause pain. What is the probable diagnosis?
Your Answer: Infective flexor tenosynovitis
Explanation:The patient is exhibiting all four of Kanavel’s signs of flexor tendon sheath infection, namely fixed flexion, fusiform swelling, tenderness, and pain on passive extension. Gout and pseudogout are mono-arthropathies that only affect one joint, whereas inflammatory arthritis typically has a more gradual onset. Although cellulitis is a possibility, the examination findings suggest that a flexor tendon sheath infection is more probable.
Infective tenosynovitis is a medical emergency that necessitates prompt identification and treatment. If left untreated, the flexor tendons will suffer irreparable damage, resulting in loss of function in the digit. If detected early, medical management with antibiotics and elevation may be sufficient, but surgical debridement is likely necessary.
Hand Diseases
Dupuytren’s contracture is a hand disease that causes the fingers to bend towards the palm and become fixed in a flexed position. It is caused by thickening and shortening of the tissues under the skin on the palm of the hand, which leads to contractures of the palmar aponeurosis. This condition is most common in males over 40 years of age and is associated with liver cirrhosis and alcoholism. Treatment involves surgical fasciectomy, but the condition may recur and surgical therapies carry risks of neurovascular damage.
Carpal tunnel syndrome is another hand disease that affects the median nerve at the carpal tunnel. It is characterized by altered sensation in the lateral three fingers and is more common in females. It may be associated with other connective tissue disorders and can occur following trauma to the distal radius. Treatment involves surgical decompression of the carpal tunnel or non-surgical options such as splinting and bracing.
There are also several miscellaneous hand lumps that can occur. Osler’s nodes are painful, red, raised lesions found on the hands and feet, while Bouchard’s nodes are hard, bony outgrowths or gelatinous cysts on the middle joints of fingers or toes and are a sign of osteoarthritis. Heberden’s nodes typically develop in middle age and cause a permanent bony outgrowth that often skews the fingertip sideways. Ganglion cysts are fluid-filled swellings near a joint that are usually asymptomatic but can be excised if troublesome.
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This question is part of the following fields:
- Musculoskeletal
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Question 9
Incorrect
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A 55-year-old man visits his GP complaining of pain in his left knee. An x-ray reveals osteoarthritis. He has no significant medical history. What is the best course of action for managing his pain?
Your Answer: Oral diclofenac with omeprazole
Correct Answer: Oral paracetamol
Explanation:For the treatment of osteoarthritis, the first-line medications are paracetamol and topical NSAIDs (if the affected area is the knee or hand). Oral NSAIDs should only be used as a second-line option due to their potential adverse effects.
The Role of Glucosamine in Osteoarthritis Management
Osteoarthritis (OA) is a common condition that affects the joints, causing pain and stiffness. The National Institute for Health and Care Excellence (NICE) published guidelines in 2014 on the management of OA, which includes non-pharmacological and pharmacological treatments. Glucosamine, a normal constituent of glycosaminoglycans in cartilage and synovial fluid, has been studied for its potential benefits in OA management.
Several double-blind randomized controlled trials (RCTs) have reported significant short-term symptomatic benefits of glucosamine in knee OA, including reduced joint space narrowing and improved pain scores. However, more recent studies have produced mixed results. The 2008 NICE guidelines do not recommend the use of glucosamine, and a 2008 Drug and Therapeutics Bulletin review advised against prescribing it on the NHS due to limited evidence of cost-effectiveness.
Despite the conflicting evidence, some patients may still choose to use glucosamine as a complementary therapy for OA management. It is important for healthcare professionals to discuss the potential benefits and risks of glucosamine with their patients and to consider individual patient preferences and circumstances.
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This question is part of the following fields:
- Musculoskeletal
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Question 10
Incorrect
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A 17-year-old rugby player is admitted to the emergency department after a field accident. During the examination, the physician discovers tenderness in the anatomical snuffbox and scaphoid tubercle. Which neurovascular structure is most likely to be affected?
Your Answer: Radial nerve
Correct Answer: Dorsal carpal arch of the radial artery
Explanation:The main neurovascular structure that is at risk in a scaphoid fracture is the dorsal carpal branch of the radial artery. This artery is responsible for supplying blood to the scaphoid bone. It is important to note that the ulnar artery is not involved in the blood supply to the scaphoid bone. The most serious complication of a scaphoid fracture is avascular necrosis. It is not possible for a scaphoid fracture to cause damage to the median or ulnar nerves as they are not anatomically related to the scaphoid bone. Although the radial nerve is located near the scaphoid bone, it is less likely to be affected than the blood vessels. This is because the radial nerve runs superficially to the tendons of the snuffbox.
Understanding Scaphoid Fractures
A scaphoid fracture is a type of wrist fracture that typically occurs when a person falls onto an outstretched hand or during contact sports. It is important to recognize this type of fracture due to the unusual blood supply of the scaphoid bone. Interruption of the blood supply can lead to avascular necrosis, which is a serious complication. Patients with scaphoid fractures typically present with pain along the radial aspect of the wrist and loss of grip or pinch strength. Clinical examination is highly sensitive and specific when certain signs are present, such as tenderness over the anatomical snuffbox and pain on telescoping of the thumb.
Plain film radiographs should be requested, including scaphoid views, but the sensitivity in the first week of injury is only 80%. A CT scan may be requested in the context of ongoing clinical suspicion or planning operative management, while MRI is considered the definite investigation to confirm or exclude a diagnosis. Initial management involves immobilization with a splint or backslab and referral to orthopaedics. Orthopaedic management depends on the patient and type of fracture, with undisplaced fractures of the scaphoid waist typically treated with a cast for 6-8 weeks. Displaced scaphoid waist fractures require surgical fixation, as do proximal scaphoid pole fractures. Complications of scaphoid fractures include non-union, which can lead to pain and early osteoarthritis, and avascular necrosis.
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This question is part of the following fields:
- Musculoskeletal
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