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  • Question 1 - A 55 year old man visits his doctor complaining of a swollen scrotum....

    Correct

    • A 55 year old man visits his doctor complaining of a swollen scrotum. Although he had no discomfort, his wife urged him to seek medical attention. Upon examination, there is a swelling on the left side of the scrotal sac that is painless and fully transilluminates. The testicle cannot be felt. What is the probable cause of this condition?

      Your Answer: Hydrocele

      Explanation:

      The male patient has a swelling in his scrotal sac that is painless and allows light to pass through. The only possible diagnosis based on these symptoms is a hydrocele, which is a buildup of clear fluid around the testicles. This condition makes it difficult to feel the testes.

      Causes and Management of Scrotal Swelling

      Scrotal swelling can be caused by various conditions, including inguinal hernia, testicular tumors, acute epididymo-orchitis, epididymal cysts, hydrocele, testicular torsion, and varicocele. Inguinal hernia is characterized by inguinoscrotal swelling that cannot be examined above it, while testicular tumors often have a discrete testicular nodule and symptoms of metastatic disease. Acute epididymo-orchitis is often accompanied by dysuria and urethral discharge, while epididymal cysts are usually painless and occur in individuals over 40 years old. Hydrocele is a non-painful, soft fluctuant swelling that can be examined above, while testicular torsion is characterized by severe, sudden onset testicular pain and requires urgent surgery. Varicocele is characterized by varicosities of the pampiniform plexus and may affect fertility.

      The management of scrotal swelling depends on the underlying condition. Testicular malignancy is treated with orchidectomy via an inguinal approach, while torsion requires prompt surgical exploration and testicular fixation. Varicoceles are usually managed conservatively, but surgery or radiological management can be considered if there are concerns about testicular function or infertility. Epididymal cysts can be excised using a scrotal approach, while hydroceles are managed differently in children and adults. In children, an inguinal approach is used to ligate the underlying pathology, while in adults, a scrotal approach is preferred to excise or plicate the hydrocele sac.

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      • Surgery
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  • Question 2 - A 32-year-old man without notable medical history is brought to the emergency department...

    Correct

    • A 32-year-old man without notable medical history is brought to the emergency department after a motorcycle crash. He has facial injuries with bleeding in the oropharynx and reduced consciousness. He cannot keep his airway open, and rapid sequence intubation is necessary.

      Which muscle relaxant is preferred for rapid sequence intubation?

      Your Answer: Suxamethonium

      Explanation:

      Suxamethonium is the preferred muscle relaxant for rapid sequence induction during intubation. While propofol and etomidate can also be used for rapid sequence intubation, they are not muscle relaxants but rather sedation agents. Suxamethonium is a depolarizing muscle relaxant that acts quickly, making it ideal for RSI. Non-depolarizing muscle relaxants like vecuronium and atracurium have a slow onset and longer duration of action, and are not recommended for RSI.

      Understanding Neuromuscular Blocking Drugs

      Neuromuscular blocking drugs are commonly used in surgical procedures as an adjunct to anaesthetic agents. These drugs are responsible for inducing muscle paralysis, which is a necessary prerequisite for mechanical ventilation. There are two types of neuromuscular blocking drugs: depolarizing and non-depolarizing.

      Depolarizing neuromuscular blocking drugs bind to nicotinic acetylcholine receptors, resulting in persistent depolarization of the motor end plate. On the other hand, non-depolarizing neuromuscular blocking drugs act as competitive antagonists of nicotinic acetylcholine receptors. Examples of depolarizing neuromuscular blocking drugs include succinylcholine (also known as suxamethonium), while examples of non-depolarizing neuromuscular blocking drugs include tubcurarine, atracurium, vecuronium, and pancuronium.

      While these drugs are effective in inducing muscle paralysis, they also come with potential adverse effects. Depolarizing neuromuscular blocking drugs may cause malignant hyperthermia and transient hyperkalaemia, while non-depolarizing neuromuscular blocking drugs may cause hypotension. However, these adverse effects can be reversed using acetylcholinesterase inhibitors such as neostigmine.

      It is important to note that suxamethonium is contraindicated for patients with penetrating eye injuries or acute narrow angle glaucoma, as it increases intra-ocular pressure. Additionally, suxamethonium is the muscle relaxant of choice for rapid sequence induction for intubation and may cause fasciculations. Understanding the mechanism of action and potential adverse effects of neuromuscular blocking drugs is crucial in ensuring their safe and effective use in surgical procedures.

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  • Question 3 - A 67-year-old man is admitted to the colorectal ward after undergoing resection of...

    Incorrect

    • A 67-year-old man is admitted to the colorectal ward after undergoing resection of a large adenocarcinoma in his descending colon. The surgery involved a left hemicolectomy and removal of two loops of small bowel and a partial cystectomy due to tumour invasion. He is currently five days post-operation and is managing well with adequate pain control. However, his catheter has drained 2000ml in the last 24 hours, and his abdominal surgical drain is still producing 200-300 ml of clear yellow fluid per day. There is a concern that his bladder wall repair may be leaking urine. What investigation should be ordered to provide the most definitive result in assessing the healing of the bladder suture line?

      Your Answer: Cystoscopy

      Correct Answer: Cystogram

      Explanation:

      To perform a cystogram, a radiopaque dye is injected into the bladder and radiographs are taken to examine the movement of the bladder contents. This helps to determine if there is any radiopaque fluid that has leaked from the bladder and is now present in the abdominal cavity.

      Functional renal imaging techniques are used to assess the structure and function of the kidneys. One such technique is dimercaptosuccinic acid (DMSA) scintigraphy, which localizes to the renal cortex and is useful for identifying cortical defects and ectopic or abhorrent kidneys. However, it does not provide information on the ureter or collecting system. Diethylene-triamine-penta-acetic acid (DTPA) is primarily a glomerular filtration agent and provides information on the glomerular filtration rate (GFR). MAG 3 renogram is an agent that is primarily secreted by tubular cells and is useful for imaging the kidneys of patients with existing renal impairment. Micturating cystourethrogram (MCUG scan) provides information on bladder reflux, while intravenous urography may provide evidence of renal stones or other structural lesions. PET/CT may be used to evaluate structurally indeterminate lesions in the staging of malignancy.

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      • Surgery
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  • Question 4 - A 25-year-old male law student arrives at the emergency department complaining of severe...

    Incorrect

    • A 25-year-old male law student arrives at the emergency department complaining of severe pain in his right upper quadrant. He reports that the pain is sharp and worsens when he takes a breath. Over the past few days, he has been feeling fatigued and experiencing shortness of breath, and he has been coughing up bloody, purulent sputum. He has a fever, tachycardia, and tachypnea. He recently returned from a week-long vacation during which he consumed 20 units of alcohol per day. What is the most probable cause of his presentation?

      Your Answer: Gallstones

      Correct Answer: Pneumonia

      Explanation:

      Upper quadrant abdominal pain can be a symptom of lower lobe pneumonia.

      Despite the patient’s complaint of abdominal pain, their other symptoms suggest that they may have pneumonia. The presence of signs of infection (such as fever, tachycardia, and tachypnea), along with shortness of breath and coughing up purulent, bloody sputum, all point towards a diagnosis of pneumonia. This question serves to emphasize that pneumonia can sometimes manifest as abdominal pain, particularly in cases of lower lobe pneumonia.

      It is important to note that hepatitis, gallstones, and pancreatitis do not typically cause shortness of breath and coughing up purulent, bloody sputum. Additionally, the patient’s history of high alcohol intake is not relevant to this question.

      Exam Features of Abdominal Pain Conditions

      Abdominal pain can be caused by various conditions, and it is important to be familiar with their characteristic exam features. Peptic ulcer disease, for instance, may present with epigastric pain that is relieved by eating in duodenal ulcers and worsened by eating in gastric ulcers. Appendicitis, on the other hand, may initially cause pain in the central abdomen before localizing to the right iliac fossa, accompanied by anorexia, tenderness in the right iliac fossa, and a positive Rovsing’s sign. Acute pancreatitis, which is often due to alcohol or gallstones, may manifest as severe epigastric pain and vomiting, with tenderness, ileus, and low-grade fever on examination.

      Other conditions that may cause abdominal pain include biliary colic, diverticulitis, and intestinal obstruction. Biliary colic may cause pain in the right upper quadrant that radiates to the back and interscapular region, while diverticulitis may present with colicky pain in the left lower quadrant, fever, and raised inflammatory markers. Intestinal obstruction, which may be caused by malignancy or previous operations, may lead to vomiting, absence of bowel movements, and tinkling bowel sounds.

      It is also important to remember that some conditions may have unusual or medical causes of abdominal pain, such as acute coronary syndrome, diabetic ketoacidosis, pneumonia, acute intermittent porphyria, and lead poisoning. Therefore, being familiar with the characteristic exam features of various conditions can aid in the diagnosis and management of abdominal pain.

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  • Question 5 - A 55-year-old man complains of lower back pain, painful urination, and low-grade fevers...

    Incorrect

    • A 55-year-old man complains of lower back pain, painful urination, and low-grade fevers for the past 3 days. During the examination, the physician noted a tender, boggy prostate and diffuse pain in the lower abdomen. A urine dip test revealed 2+ blood in the urine. What is the recommended treatment for the suspected diagnosis?

      Your Answer: Refer to secondary care for urgent hospital admission

      Correct Answer: A 14 day course of ciprofloxacin

      Explanation:

      If a patient is diagnosed with prostatitis, a urine sample should be taken for culture. If the patient is stable enough to be treated outside of a hospital setting, they should be prescribed a 14-day course of a quinolone such as ciprofloxacin or ofloxacin. However, if the patient is experiencing severe symptoms, is septic, unable to take oral antibiotics, or is in urinary retention, they should be referred to secondary care urgently.

      Acute bacterial prostatitis is a condition that occurs when gram-negative bacteria enter the prostate gland through the urethra. The most common pathogen responsible for this condition is Escherichia coli. Risk factors for acute bacterial prostatitis include recent urinary tract infection, urogenital instrumentation, intermittent bladder catheterisation, and recent prostate biopsy. Symptoms of this condition include pain in various areas such as the perineum, penis, rectum, or back, obstructive voiding symptoms, fever, and rigors. A tender and boggy prostate gland can be detected during a digital rectal examination.

      The recommended treatment for acute bacterial prostatitis is a 14-day course of a quinolone. It is also advisable to consider screening for sexually transmitted infections.

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  • Question 6 - A 49-year-old woman has been newly diagnosed with breast cancer. She receives a...

    Incorrect

    • A 49-year-old woman has been newly diagnosed with breast cancer. She receives a wide-local excision and subsequently undergoes whole-breast radiotherapy. The pathology report reveals that the tumour is negative for HER2 but positive for oestrogen receptor. She has a medical history of hypertension and premature ovarian failure. What adjuvant treatment is she expected to receive?

      Your Answer: Tamoxifen

      Correct Answer: Anastrozole

      Explanation:

      Anastrozole is the correct adjuvant hormonal therapy for postmenopausal women with ER+ breast cancer. This is because the tumour is positive for oestrogen receptors and negative for HER2 receptors, and aromatase inhibitors are the preferred treatment for postmenopausal women due to the majority of oestrogen production being through aromatisation. Goserelin is used for ovarian suppression in premenopausal women, while Herceptin is used for HER2 positive tumours. Imatinib is not used in breast cancer management.

      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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      • Surgery
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  • Question 7 - A 50-year-old man comes in with an episode of alcoholic pancreatitis. He shows...

    Incorrect

    • A 50-year-old man comes in with an episode of alcoholic pancreatitis. He shows gradual improvement and is assessed at his 6-week follow-up. He has a bloated feeling in his upper abdomen and a fluid collection is discovered behind his stomach on imaging. His serum amylase levels are slightly elevated. What is the most probable cause?

      Your Answer: Pancreatic abscess

      Correct Answer: Pseudocyst

      Explanation:

      It is improbable for pseudocysts to be detected within 4 weeks of an episode of acute pancreatitis. Nevertheless, they are more prevalent during this period and are linked to an elevated amylase level.

      Acute pancreatitis can lead to various complications, both locally and systemically. Local complications include peripancreatic fluid collections, which occur in about 25% of cases and may develop into pseudocysts or abscesses. Pseudocysts are walled by fibrous or granulation tissue and typically occur 4 weeks or more after an attack of acute pancreatitis. Pancreatic necrosis, which involves both the pancreatic parenchyma and surrounding fat, can also occur and is directly linked to the extent of necrosis. Pancreatic abscesses may result from infected pseudocysts and can be treated with drainage methods. Haemorrhage may also occur, particularly in cases of infected necrosis.

      Systemic complications of acute pancreatitis include acute respiratory distress syndrome, which has a high mortality rate of around 20%. Local complications such as peripancreatic fluid collections and pancreatic necrosis can also lead to systemic complications if left untreated. It is important to manage these complications appropriately, with conservative management being preferred for sterile necrosis and early necrosectomy being avoided unless necessary. Treatment options for local complications include endoscopic or surgical cystogastrostomy, aspiration, and drainage methods. Overall, prompt recognition and management of complications is crucial in improving outcomes for patients with acute pancreatitis.

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      • Surgery
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  • Question 8 - A 32-year-old woman presents to her GP with concerns about the appearance of...

    Incorrect

    • A 32-year-old woman presents to her GP with concerns about the appearance of her legs. She has noticed visible, twisted veins on both legs for several years, which she finds unattractive. Although she experiences occasional itching, she does not feel any pain, and there has been no bleeding or swelling. She has no medical history or family history and does not take any regular medication.

      Upon examination, the doctor observes dilated, twisted, superficial veins in both legs. There is no tenderness or swelling, and no skin changes, bleeding, or ulcers are visible.

      What is the most appropriate management for this likely diagnosis?

      Your Answer: Referral for endothermal ablation

      Correct Answer: Compression stockings

      Explanation:

      Compression stockings are the recommended treatment for patients with mild symptoms of varicose veins, as they may alleviate symptoms. Referral to secondary care is only necessary if there are significant symptoms such as pain, swelling, bleeding, skin changes, ulcers, or thrombophlebitis. Endothermal ablation and foam sclerotherapy are not first-line approaches and are only used in more severe cases at the discretion of vascular surgeons. It is important for patients to engage in light-to-moderate physical activity, as this has been shown to reduce symptoms, along with weight loss and leg elevation.

      Understanding Varicose Veins

      Varicose veins are enlarged and twisted veins that occur when the valves in the veins become weak or damaged, causing blood to flow backward and pool in the veins. They are most commonly found in the legs due to the great saphenous vein and small saphenous vein reflux. Although they are a common condition, most patients do not require any medical intervention. However, some patients may experience symptoms such as aching, itching, and throbbing, while others may develop complications such as skin changes, bleeding, superficial thrombophlebitis, and venous ulceration.

      To diagnose varicose veins, a venous duplex ultrasound is usually performed to detect retrograde venous flow. Treatment options include conservative measures such as leg elevation, weight loss, regular exercise, and graduated compression stockings. However, patients with significant or troublesome symptoms, skin changes, or complications may require referral to secondary care for further management. Possible treatments include endothermal ablation, foam sclerotherapy, or surgery.

      Understanding varicose veins is important for patients to recognize the symptoms and seek medical attention if necessary. With proper management, patients can alleviate their symptoms and prevent complications from developing.

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  • Question 9 - An 80-year-old man arrives at the emergency department with his partner following a...

    Correct

    • An 80-year-old man arrives at the emergency department with his partner following a fall. A collateral history is obtained, revealing that he tripped over a loose rug and fell, hitting his head on the ground and losing consciousness for 2 minutes. Upon examination, there is bruising on his upper limbs, but no neurological deficits are observed, and his Glasgow coma score (GCS) is 15. The patient himself can recall events leading up to and after the fall, and has not experienced vomiting or seizures since the incident. Additionally, there are no indications of a skull fracture. The patient has a medical history of hypertension that is managed with amlodipine. What is the most appropriate next step?

      Your Answer: Perform CT head within 8 hours

      Explanation:

      For patients over 65 years old who have experienced some form of loss of consciousness or amnesia after a head injury, a CT scan should be performed within 8 hours. This is important to assess the risk of complications from the injury. While this patient does not have any immediate indications for a CT scan, as they did not have a GCS score below 13 on initial assessment, suspected skull fractures, seizures, focal neurological deficits, or vomiting, they did lose consciousness during the fall. NICE guidelines recommend that any patient over 65 years old who experiences a loss of consciousness or amnesia following a fall should be offered a CT head 8 hours post-injury to identify potential complications such as intracranial bleeds. A CT scan within 1 hour is not necessary in this case.

      NICE Guidelines for Investigating Head Injuries in Adults

      Head injuries can be serious and require prompt medical attention. The National Institute for Health and Care Excellence (NICE) has provided clear guidelines for healthcare professionals to determine which adult patients need further investigation with a CT head scan. Patients who require immediate CT head scans include those with a Glasgow Coma Scale (GCS) score of less than 13 on initial assessment, suspected open or depressed skull fractures, signs of basal skull fractures, post-traumatic seizures, focal neurological deficits, and more than one episode of vomiting.

      For patients with any loss of consciousness or amnesia since the injury, a CT head scan within 8 hours is recommended for those who are 65 years or older, have a history of bleeding or clotting disorders, experienced a dangerous mechanism of injury, or have more than 30 minutes of retrograde amnesia of events immediately before the head injury. Additionally, patients on warfarin who have sustained a head injury without other indications for a CT head scan should also receive a scan within 8 hours of the injury.

      It is important for healthcare professionals to follow these guidelines to ensure that patients receive appropriate and timely care for their head injuries. By identifying those who require further investigation, healthcare professionals can provide the necessary treatment and support to prevent further complications and improve patient outcomes.

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  • Question 10 - A 75-year-old male has been diagnosed with rectal carcinoma and is scheduled for...

    Incorrect

    • A 75-year-old male has been diagnosed with rectal carcinoma and is scheduled for a lower anterior resection with the goal of restoring intestinal continuity. What type of stoma would be most suitable?

      Your Answer: End colostomy

      Correct Answer: Loop ileostomy

      Explanation:

      The loop ileostomy is a technique used to redirect the flow of bowel contents away from a distal anastomosis, typically in cases of rectal cancer. When the ileostomy is reversed, it allows for the restoration of bowel continuity and can greatly enhance the patient’s quality of life.

      Abdominal stomas are created during various abdominal procedures to bring the lumen or contents of organs onto the skin. Typically, this involves the bowel, but other organs may also be diverted if necessary. The type and method of construction of the stoma will depend on the contents of the bowel. Small bowel stomas should be spouted to prevent irritant contents from coming into contact with the skin, while colonic stomas do not require spouting. Proper siting of the stoma is crucial to reduce the risk of leakage and subsequent maceration of the surrounding skin. The type and location of the stoma will vary depending on the purpose, such as defunctioning the colon or providing feeding access. Overall, abdominal stomas are a necessary medical intervention that requires careful consideration and planning.

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SESSION STATS - PERFORMANCE PER SPECIALTY

Surgery (3/10) 30%
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