-
Question 1
Incorrect
-
A 56-year-old man, who is a known alcoholic, is admitted to the surgical assessment unit with acute pancreatitis. What is the most appropriate scoring system for this patient?
Your Answer: Gleason
Correct Answer: Glasgow
Explanation:The APACHE system and other systems are not as specific to acute pancreatitis as the Glasgow score.
Understanding Acute Pancreatitis
Acute pancreatitis is a condition that is commonly caused by alcohol or gallstones. It occurs when the pancreatic enzymes start to digest the pancreatic tissue, leading to necrosis. The main symptom of acute pancreatitis is severe epigastric pain that may radiate through to the back. Vomiting is also common, and examination may reveal epigastric tenderness, ileus, and low-grade fever. In rare cases, periumbilical discolouration (Cullen’s sign) and flank discolouration (Grey-Turner’s sign) may be present.
To diagnose acute pancreatitis, doctors typically measure the levels of serum amylase and lipase in the blood. While amylase is raised in 75% of patients, it does not correlate with disease severity. Lipase, on the other hand, is more sensitive and specific than amylase and has a longer half-life. Imaging tests, such as ultrasound and contrast-enhanced CT, may also be used to assess the aetiology of the condition.
Scoring systems, such as the Ranson score, Glasgow score, and APACHE II, are used to identify cases of severe pancreatitis that may require intensive care management. Factors that indicate severe pancreatitis include age over 55 years, hypocalcaemia, hyperglycaemia, hypoxia, neutrophilia, and elevated LDH and AST. It is important to note that the actual amylase level is not of prognostic value.
In summary, acute pancreatitis is a condition that can cause severe pain and discomfort. It is typically caused by alcohol or gallstones and can be diagnosed through blood tests and imaging. Scoring systems are used to identify cases of severe pancreatitis that require intensive care management.
-
This question is part of the following fields:
- Surgery
-
-
Question 2
Incorrect
-
To which bone does Sever's disease refer, and at what age is it commonly diagnosed?
Your Answer: Talus
Correct Answer: Calcaneum
Explanation:Sever’s Disease
Sever’s disease is a condition that causes pain in one or both heels when walking or standing. It occurs due to a disturbance or interruption in the growth plates located at the back of the heel bone, also known as the calcaneus. This condition typically affects children between the ages of 8 and 13 years old.
The pain associated with Sever’s disease can occur after general activities such as running, jumping, or playing sports like netball, basketball, and football. Symptoms include extreme pain when placing the heel on the ground, which can be alleviated when the child walks on their tiptoes.
In summary, Sever’s disease is a common condition that affects children during their growth and development. It is important to recognize the symptoms and seek medical attention if necessary to ensure proper treatment and management of the condition.
-
This question is part of the following fields:
- Surgery
-
-
Question 3
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:
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.
-
This question is part of the following fields:
- Surgery
-
-
Question 4
Incorrect
-
An 80-year-old man presents to the surgical assessment unit with vomiting and abdominal distension. He has been experiencing absolute constipation for the past three days and his abdomen has become increasingly distended. He also reports feeling nauseous and has been vomiting for the last day. The patient has a medical history of hypertension and takes ramipril.
Upon examination, the patient has a soft but significantly distended abdomen that is tympanic to percussion. Loud bowel sounds are audible. His vital signs are as follows: heart rate of 87 bpm, blood pressure of 135/87 mmHg, and temperature of 36.8ºC. An abdominal x-ray reveals a 'coffee-bean' sign, indicating a sigmoid volvulus.
What is the initial management approach for this condition?Your Answer:
Correct Answer: Decompression via rigid sigmoidoscopy and flatus tube insertion
Explanation:Flatus tube insertion is the primary management approach for unruptured sigmoid volvulus.
In elderly patients, sigmoid volvulus is a common condition that can be initially treated without surgery by decompressing the bowel using a flatus tube. This approach is preferred as surgery poses a higher risk in this age group. Flatus tube decompression typically leads to resolution of the volvulus without recurrence. If flatus tube decompression fails or recurrence occurs despite multiple attempts, the next step is to insert a percutaneous colostomy tube to decompress the volvulus.
Conservative management is not appropriate for patients with absolute constipation as the volvulus can become ischemic and perforate, which is associated with a high mortality rate. Anti-muscarinic agents are used to treat pseudo-obstruction, not volvulus. There is no evidence to support the need for a Hartmann’s procedure as perforation is not a concern.
Understanding Volvulus: A Condition of Twisted Colon
Volvulus is a medical condition that occurs when the colon twists around its mesenteric axis, leading to a blockage in blood flow and closed loop obstruction. Sigmoid volvulus is the most common type, accounting for around 80% of cases, and is caused by the sigmoid colon twisting on the sigmoid mesocolon. Caecal volvulus, on the other hand, occurs in around 20% of cases and is caused by the caecum twisting. This condition is more common in patients with developmental failure of peritoneal fixation of the proximal bowel.
Sigmoid volvulus is often associated with chronic constipation, Chagas disease, neurological conditions like Parkinson’s disease and Duchenne muscular dystrophy, and psychiatric conditions like schizophrenia. Caecal volvulus, on the other hand, is associated with adhesions, pregnancy, and other factors. Symptoms of volvulus include constipation, abdominal bloating, abdominal pain, and nausea/vomiting.
Diagnosis of volvulus is usually done through an abdominal film, which shows signs of large bowel obstruction alongside the coffee bean sign for sigmoid volvulus. Small bowel obstruction may be seen in caecal volvulus. Management of sigmoid volvulus involves rigid sigmoidoscopy with rectal tube insertion, while caecal volvulus usually requires operative management, with right hemicolectomy often being necessary.
-
This question is part of the following fields:
- Surgery
-
-
Question 5
Incorrect
-
As a healthcare professional in the emergency department, you come across an elderly overweight man who appears to be in a drowsy state. Upon calling out his name, you hear a grunting sound. The patient has periorbital ecchymosis and clear fluid leaking from one nostril. Additionally, his oxygen saturation levels are at 82% on air.
Which airway adjunct should you avoid using in this patient?Your Answer:
Correct Answer: Nasopharyngeal airway
Explanation:If a patient is suspected or known to have a basal skull fracture, nasopharyngeal airways should not be used. This is because there is a rare risk of inserting the airway into the cranial cavity. Signs of a basal skull fracture include periorbital ecchymosis (raccoon eyes), CSF rhinorrhoea, haemotympanum, and mastoid process bruising (battle’s sign). While ET tubes, i-gels, and LMAs do not have contraindications, they should not be the first-line option and should only be inserted by a trained professional, typically an anaesthetist.
Nasopharyngeal Airway for Maintaining Airway Patency
Nasopharyngeal airways are medical devices used to maintain a patent airway in patients with decreased Glasgow coma score (GCS). These airways are inserted into the nostril after being lubricated, and they come in various sizes. They are particularly useful for patients who are having seizures, as an oropharyngeal airway (OPA) may not be suitable for insertion.
Nasopharyngeal airways are generally well-tolerated by patients with low GCS. However, they should be used with caution in patients with base of skull fractures, as they may cause further damage. It is important to note that these airways should only be inserted by trained medical professionals to avoid any complications. Overall, nasopharyngeal airways are an effective tool for maintaining airway patency in patients with decreased GCS.
-
This question is part of the following fields:
- Surgery
-
-
Question 6
Incorrect
-
A 72-year-old male is recovering from carotid endarterectomy for an 80% stenosis of the carotid artery. After a smooth recovery period, the registrar examined the patient's cranial nerves. Upon requesting the patient to protrude his tongue, it was observed that the tongue deviated towards the right side of the patient. Which nerve has been impacted?
Your Answer:
Correct Answer: Right hypoglossal
Explanation:During a carotid endarterectomy, there is a significant chance of damaging the hypoglossal nerve on the same side as the procedure. This nerve is responsible for providing motor function to the tongue and muscles that depress the hyoid bone. Additionally, the accessory nerve is responsible for supplying the sternocleidomastoid and trapezius muscles.
Nerve Lesions in Surgery: Risks and Procedures
During surgical procedures, there is a risk of iatrogenic nerve injury, which can have significant consequences for patients and lead to legal issues. Several operations are associated with specific nerve lesions, including posterior triangle lymph node biopsy and accessory nerve lesion, Lloyd Davies stirrups and common peroneal nerve, thyroidectomy and laryngeal nerve, anterior resection of rectum and hypogastric autonomic nerves, axillary node clearance and long thoracic nerve, thoracodorsal nerve, and intercostobrachial nerve, inguinal hernia surgery and ilioinguinal nerve, varicose vein surgery and sural and saphenous nerves, posterior approach to the hip and sciatic nerve, and carotid endarterectomy and hypoglossal nerve.
To minimize the incidence of nerve lesions, surgeons must have a sound anatomical understanding of the tissue planes involved in commonly performed procedures. Nerve injuries often occur when surgeons operate in unfamiliar tissue planes or use haemostats blindly, which is not recommended. By being aware of the risks and taking appropriate precautions, surgeons can reduce the likelihood of nerve injuries during surgery.
-
This question is part of the following fields:
- Surgery
-
-
Question 7
Incorrect
-
A 49-year-old woman presents with severe epigastric pain radiating to her back. She has no significant past medical history. On examination, her epigastrium is very tender but not peritonitic. Observations are as follows: heart rate 110 beats per minute, blood pressure 125/75 mmHg, SpO2 96% on air, and temperature 37.2ºC.
Blood results are as follows:
Hb 125 g/L Male: (135-180)
Female: (115 - 160)
Platelets 560 * 109/L (150 - 400)
WBC 14.2 * 109/L (4.0 - 11.0)
Calcium 1.9 mmol/L (2.1-2.6)
Creatinine 110 µmol/L (55 - 120)
CRP 120 mg/L (< 5)
Amylase 1420 U/L (40-140)
What feature suggests severe disease?Your Answer:
Correct Answer: Hypocalcaemia
Explanation:Hypercalcaemia can cause pancreatitis, but hypocalcaemia is an indicator of pancreatitis severity. Diagnosis of acute pancreatitis is confirmed by clinical features and significantly raised amylase. Scoring systems such as Ranson score, Glasgow score, and APACHE II are used to identify severe cases requiring intensive care management. An LDH level greater than 350 IU/L is also an indicator of pancreatitis severity.
Understanding Acute Pancreatitis
Acute pancreatitis is a condition that is commonly caused by alcohol or gallstones. It occurs when the pancreatic enzymes start to digest the pancreatic tissue, leading to necrosis. The main symptom of acute pancreatitis is severe epigastric pain that may radiate through to the back. Vomiting is also common, and examination may reveal epigastric tenderness, ileus, and low-grade fever. In rare cases, periumbilical discolouration (Cullen’s sign) and flank discolouration (Grey-Turner’s sign) may be present.
To diagnose acute pancreatitis, doctors typically measure the levels of serum amylase and lipase in the blood. While amylase is raised in 75% of patients, it does not correlate with disease severity. Lipase, on the other hand, is more sensitive and specific than amylase and has a longer half-life. Imaging tests, such as ultrasound and contrast-enhanced CT, may also be used to assess the aetiology of the condition.
Scoring systems, such as the Ranson score, Glasgow score, and APACHE II, are used to identify cases of severe pancreatitis that may require intensive care management. Factors that indicate severe pancreatitis include age over 55 years, hypocalcaemia, hyperglycaemia, hypoxia, neutrophilia, and elevated LDH and AST. It is important to note that the actual amylase level is not of prognostic value.
In summary, acute pancreatitis is a condition that can cause severe pain and discomfort. It is typically caused by alcohol or gallstones and can be diagnosed through blood tests and imaging. Scoring systems are used to identify cases of severe pancreatitis that require intensive care management.
-
This question is part of the following fields:
- Surgery
-
-
Question 8
Incorrect
-
A 26-year-old female patient arrives at the emergency department complaining of left-sided flank pain that has been ongoing for two hours. The pain radiates down towards her groin and is constant, unaffected by changes in position. She reports feeling nauseous and has vomited once. The patient has no significant medical history and is not taking any regular medications.
Upon examination, the patient is tender over the left costovertebral angle and shows signs of guarding, but no rebound tenderness. Her vital signs are heart rate 112/min, blood pressure 120/76 mmHg, temperature 38.1ºC, respiratory rate 14/min, and saturations 97%. An ultrasound scan of the kidneys reveals dilation of the renal pelvis on the left, while a CT scan of the kidneys, ureters, and bladder shows a 4 mm stone in the left ureter. What is the most appropriate course of action?Your Answer:
Correct Answer: Surgical decompression
Explanation:Patients who have obstructive urinary calculi and show signs of infection require immediate renal decompression and intravenous antibiotics due to the high risk of sepsis. In this case, the patient has complicated urinary calculi, with the stone blocking the ureter and causing hydronephrosis (as seen on the ultrasound scan) and fever, indicating a secondary infection. These patients are at risk of developing urosepsis, so it is crucial to perform urgent renal decompression through a ureteric stent or percutaneous nephrostomy to relieve the obstruction. Additionally, they must receive antibiotics to treat the upper urinary tract infection. Nifedipine may be useful for some patients with small, uncomplicated renal stones as it relaxes the ureters and helps in passing the stone. Extracorporeal shock wave lithotripsy is used for larger, uncomplicated stones or when medical therapy has failed. Conservative measures, such as increasing oral fluids and waiting for the stone to pass, are not appropriate for patients with obstructing renal stones complicated by infection.
The management of renal stones involves initial medication and investigations, including an NSAID for analgesia and a non-contrast CT KUB for imaging. Stones less than 5mm may pass spontaneously, but more intensive treatment is needed for ureteric obstruction or renal abnormalities. Treatment options include shockwave lithotripsy, ureteroscopy, and percutaneous nephrolithotomy. Prevention strategies include high fluid intake, low animal protein and salt diet, and medication such as thiazides diuretics for hypercalciuria and allopurinol for uric acid stones.
-
This question is part of the following fields:
- Surgery
-
-
Question 9
Incorrect
-
A 50-year-old woman comes to the clinic complaining of a painful and swollen hand. She reports having a fracture in her radius that was treated with a plaster cast for four weeks. Since then, she has noticed tenderness and shiny skin in the affected hand. What is the most probable diagnosis for her symptoms?
Your Answer:
Correct Answer: Complex regional pain syndrome
Explanation:Complex Regional Pain Syndromes (CRPS)
Complex Regional Pain Syndromes (CRPS) are a group of conditions that are characterized by localized or widespread pain, accompanied by swelling, changes in skin color and temperature, and disturbances in blood flow. People with CRPS may also experience allodynia (pain from stimuli that are not normally painful), hyperhidrosis (excessive sweating), and changes in nail or hair growth. In some cases, motor abnormalities such as tremors, muscle spasms, and involuntary movements may also occur. Contractures, or the shortening and tightening of muscles, may develop in later stages of the condition. CRPS can affect any part of the body, but it is most commonly seen in the limbs.
One of the defining features of CRPS is that it often develops after an injury, even one that may seem minor or insignificant. Symptoms may not appear until several months after the initial injury. CRPS was previously known as Reflex Sympathetic Dystrophy (RSD).
-
This question is part of the following fields:
- Surgery
-
-
Question 10
Incorrect
-
A 68-year-old man visits his doctor with complaints of frequent urination and dribbling. He reports going to the bathroom six times per hour and waking up multiple times at night to urinate. The patient has a medical history of hypertension and benign prostatic hyperplasia, and is currently taking finasteride and tamsulosin. On physical examination, the doctor notes an enlarged, symmetrical, firm, and non-tender prostate. The patient denies any changes in weight, fever, or appetite. His International Prostate Symptom Score is 20. What is the appropriate course of action?
Your Answer:
Correct Answer: Add tolterodine
Explanation:Tolterodine should be added to the management plan for patients with an overactive bladder, particularly those with voiding and storage symptoms such as dribbling, frequency, and nocturia, which are commonly caused by benign prostatic hyperplasia in men. If alpha-blockers like tamsulosin are not effective, antimuscarinic agents can be added according to NICE guidelines. Adding alfuzosin or sildenafil would be inappropriate, and changing the alpha-blocker is not recommended.
Lower urinary tract symptoms (LUTS) are a common issue in men over the age of 50, with benign prostatic hyperplasia being the most common cause. However, other causes such as prostate cancer should also be considered. These symptoms can be classified into three groups: voiding, storage, and post-micturition. To properly manage LUTS, it is important to conduct a urinalysis to check for infection and haematuria, perform a digital rectal examination to assess the size and consistency of the prostate, and possibly conduct a PSA test after proper counselling. Patients should also complete a urinary frequency-volume chart and an International Prostate Symptom Score to guide management.
For predominantly voiding symptoms, conservative measures such as pelvic floor muscle training, bladder training, and prudent fluid intake can be helpful. If symptoms are moderate or severe, an alpha-blocker may be offered. If the prostate is enlarged and the patient is at high risk of progression, a 5-alpha reductase inhibitor should be offered. If there are mixed symptoms of voiding and storage not responding to an alpha-blocker, an antimuscarinic drug may be added. For predominantly overactive bladder symptoms, moderating fluid intake and bladder retraining should be offered, and antimuscarinic drugs may be prescribed if symptoms persist. Mirabegron may be considered if first-line drugs fail. For nocturia, moderating fluid intake at night, furosemide 40 mg in the late afternoon, and desmopressin may be helpful.
-
This question is part of the following fields:
- Surgery
-
-
Question 11
Incorrect
-
A 56-year-old man comes to your GP office and expresses his anxiety about developing an abdominal aortic aneurysm (AAA) after his friend, who seemed healthy, passed away due to a ruptured AAA. During the physical examination, the patient's vital signs are all normal, and his body mass index is 24 kg/m². Although you can feel his abdominal pulse, it is not expansile. As a result, you decide to educate the patient about the abdominal aortic aneurysm screening program.
What information would you provide to the patient during this discussion?Your Answer:
Correct Answer: A single abdominal ultrasound for those aged 65-years-old
Explanation:A single abdominal ultrasound is offered to all males aged 65 in England for screening of an abdominal aortic aneurysm (AAA). This is because the risk of getting an AAA is much smaller in women, men under 65, and those who have already been treated for an AAA. The screening is performed as an individual scan initially, and subsequent scans may be required depending on the size of the AAA. Therefore, options such as abdominal ultrasound every 3 or 5 years between 60 and 75-years-old are incorrect. Similarly, a single abdominal ultrasound for those aged 55 or 60-years-old is also incorrect as the screening is specifically for those aged 65.
Abdominal aortic aneurysm (AAA) is a condition that often develops without any symptoms. However, a ruptured AAA can be fatal, which is why it is important to screen patients for this condition. Screening involves a single abdominal ultrasound for males aged 65. The results of the screening are interpreted based on the width of the aorta. If the width is less than 3 cm, no further action is needed. If it is between 3-4.4 cm, the patient should be rescanned every 12 months. For a width of 4.5-5.4 cm, the patient should be rescanned every 3 months. If the width is 5.5 cm or more, the patient should be referred to vascular surgery within 2 weeks for probable intervention.
For patients with a low risk of rupture, which includes those with a small or medium aneurysm (i.e. aortic diameter less than 5.5 cm) and no symptoms, abdominal US surveillance should be conducted on the time-scales outlined above. Additionally, cardiovascular risk factors should be optimized, such as quitting smoking. For patients with a high risk of rupture, which includes those with a large aneurysm (i.e. aortic diameter of 5.5 cm or more) or rapidly enlarging aneurysm (more than 1 cm/year) or those with symptoms, they should be referred to vascular surgery within 2 weeks for probable intervention. Treatment for these patients may involve elective endovascular repair (EVAR) or open repair if EVAR is not suitable. EVAR involves placing a stent into the abdominal aorta via the femoral artery to prevent blood from collecting in the aneurysm. However, a complication of EVAR is an endo-leak, which occurs when the stent fails to exclude blood from the aneurysm and usually presents without symptoms on routine follow-up.
-
This question is part of the following fields:
- Surgery
-
-
Question 12
Incorrect
-
A 26-year-old male comes in with a painless lump in his testicle. During the examination, the lump is found to be hard and irregular. What is the most suitable test to order?
Your Answer:
Correct Answer: Testicular ultrasound scan
Explanation:The initial investigation for a testicular mass is an ultrasound, which is also the recommended first-line test for suspected testicular cancer. While beta-hCG levels may be elevated in certain types of testicular cancer, it is not a sensitive enough test to be used as the primary investigation. A surgical biopsy is not necessary at this stage, and a CT scan would subject the patient to unnecessary radiation. A bone scan is typically used for staging certain cancers after diagnosis, but it is not a first-line investigation for cancer.
Understanding Testicular Cancer
Testicular cancer is a type of cancer that commonly affects men between the ages of 20 and 30. Germ-cell tumors are the most common type of testicular cancer, accounting for around 95% of cases. These tumors can be divided into seminomas and non-seminomas, which include embryonal, yolk sac, teratoma, and choriocarcinoma. Other types of testicular cancer include Leydig cell tumors and sarcomas. Risk factors for testicular cancer include infertility, cryptorchidism, family history, Klinefelter’s syndrome, and mumps orchitis.
The most common symptom of testicular cancer is a painless lump, although some men may experience pain. Other symptoms may include hydrocele and gynaecomastia, which occurs due to an increased oestrogen:androgen ratio. Tumor markers such as hCG, AFP, and beta-hCG may be elevated in germ cell tumors. Ultrasound is the first-line diagnostic tool for testicular cancer.
Treatment for testicular cancer depends on the type and stage of the tumor. Orchidectomy, chemotherapy, and radiotherapy may be used. Prognosis for testicular cancer is generally excellent, with a 5-year survival rate of around 95% for seminomas and 85% for teratomas if caught at Stage I. It is important for men to perform regular self-examinations and seek medical attention if they notice any changes or abnormalities in their testicles.
-
This question is part of the following fields:
- Surgery
-
-
Question 13
Incorrect
-
A 65-year-old man arrives at the emergency department with complaints of leg pain. Upon examination, the leg appears pale, there is no pulse felt below the knee, it feels very cold, and the patient is reporting severe excruciating pain that began an hour ago. What is the optimal approach to managing this condition?
Your Answer:
Correct Answer: Surgical intervention
Explanation:The 6 P’s – pale, pulseless, pain, paralysis, paraesthesia, and perishingly cold – are indicative of acute limb-threatening ischaemia. This condition requires urgent surgical intervention to save the affected limb. While pain relief may be helpful, it is not the primary treatment. If surgical intervention fails, amputation may be necessary, but since the symptoms began less than 6 hours ago, there is a good chance that surgery will be successful. Thrombolysis and warfarin are not effective treatments for this condition.
Peripheral arterial disease can present in three main ways: intermittent claudication, critical limb ischaemia, and acute limb-threatening ischaemia. The latter is characterized by one or more of the 6 P’s: pale, pulseless, painful, paralysed, paraesthetic, and perishing with cold. Initial investigations include a handheld arterial Doppler examination and an ankle-brachial pressure index (ABI) if Doppler signals are present. It is important to determine whether the ischaemia is due to a thrombus or embolus, as this will guide management. Thrombus is suggested by pre-existing claudication with sudden deterioration, reduced or absent pulses in the contralateral limb, and evidence of widespread vascular disease. Embolus is suggested by a sudden onset of painful leg (<24 hours), no history of claudication, clinically obvious source of embolus, and no evidence of peripheral vascular disease. Initial management includes an ABC approach, analgesia, intravenous unfractionated heparin, and vascular review. Definitive management options include intra-arterial thrombolysis, surgical embolectomy, angioplasty, bypass surgery, or amputation for irreversible ischaemia.
-
This question is part of the following fields:
- Surgery
-
-
Question 14
Incorrect
-
A 50-year-old man with a caecal carcinoma undergoes a laparotomy with right hemicolectomy. Four weeks later, he presents to the Surgical Outpatient Clinic with a persistent sinus in his midline laparotomy scar.
Which of the following conditions is most likely to be associated with poor wound healing?Your Answer:
Correct Answer: Adjuvant radiotherapy
Explanation:Factors Affecting Wound Healing: Adjuvant Radiotherapy, High Tension Sutures, Skin Closure Material, Medications, and Nutrient Deficiencies
Wound healing can be influenced by various factors, including adjuvant radiotherapy, high tension sutures, skin closure material, medications, and nutrient deficiencies. Adjuvant radiotherapy is often used postoperatively to reduce the risk of recurrence, but it can also delay wound healing and cause complications such as fibrosis and stricture formation. High tension sutures can support wound healing, but if placed with too much tension, they can lead to tissue strangulation and necrosis. Skin closure material should be removed at the appropriate time to prevent wound dehiscence. Non-steroidal anti-inflammatory drugs have not been shown to have a significant effect on wound healing, but steroids and other immunosuppressive drugs can impair it. Finally, nutrient deficiencies, particularly of vitamins A, C, and E and zinc, can also impact wound healing.
-
This question is part of the following fields:
- Surgery
-
-
Question 15
Incorrect
-
A 59-year-old man arrives at the emergency department complaining of severe epigastric pain that is radiating to his right upper quadrant and back. He has vomited three times since the pain started this morning and has never experienced this before. On examination, there is no abdominal distention or visible jaundice. His heart rate is 98/min, respiratory rate 18/min, blood pressure 108/66 mmHg, and temperature 37.9ºC. A new medication has recently been added to his regimen. What is the most probable cause of his presentation?
Your Answer:
Correct Answer: Mesalazine
Explanation:Mesalazine is a potential cause of drug-induced pancreatitis. This medication is commonly prescribed for Crohn’s disease, rheumatoid arthritis, and other conditions as an immunosuppressant. The patient’s symptoms, including epigastric pain radiating to the back, vomiting, low-grade fever, and lack of jaundice, suggest an acute presentation of pancreatitis induced by mesalazine. Although the exact mechanism is unclear, toxicity has been proposed as a possible explanation for mesalazine-induced pancreatitis. While hydroxychloroquine is used to treat systemic lupus erythematosus and rheumatoid arthritis, it is unlikely to cause pancreatitis and may even reduce the risk of this condition. Lithium, a mood stabilizer used to prevent bipolar disorder, has not been associated with pancreatitis. Similarly, metformin, a first-line medication for type 2 diabetes, has not been linked to pancreatitis.
Acute pancreatitis is a condition that is mainly caused by gallstones and alcohol in the UK. A popular mnemonic to remember the causes is GET SMASHED, which stands for gallstones, ethanol, trauma, steroids, mumps, autoimmune diseases, scorpion venom, hypertriglyceridaemia, hyperchylomicronaemia, hypercalcaemia, hypothermia, ERCP, and certain drugs. CT scans of patients with acute pancreatitis show diffuse parenchymal enlargement with oedema and indistinct margins. It is important to note that pancreatitis is seven times more common in patients taking mesalazine than sulfasalazine.
-
This question is part of the following fields:
- Surgery
-
-
Question 16
Incorrect
-
An 80-year-old woman is recovering on the surgical ward two days after undergoing hemicolectomy for colorectal carcinoma. She has been instructed to fast. Her epidural fell out about twelve hours after the surgery, causing her significant pain. Despite the on-call anaesthetist being unavailable for several hours, the epidural was eventually replaced. The next morning, you examine her and find that she is now pain-free but complaining of shortness of breath. Additionally, she has developed a fever of 38.2º. What is the most probable reason for her fever?
Your Answer:
Correct Answer: Respiratory tract infection
Explanation:Poor post-operative pain management can lead to pneumonia as a complication. Junior doctors on surgical wards often face the challenge of identifying and managing post-operative fever. A general timeline can be used to determine the probable cause of fever, with wind (pneumonia, aspiration, pulmonary embolism) being the likely cause on days 1-2, water (urinary tract infection) on days 3-5, wound (infection at surgical site or abscess formation) on days 5-7, and walking (deep vein thrombosis or pulmonary embolism) on day 5 and beyond. Drug reactions, transfusion reactions, sepsis, and line contamination can occur at any time. In this case, the patient’s inadequate pain relief may have caused her to breathe shallowly, increasing her risk of respiratory tract infections and atelectasis. While atelectasis is a common post-operative finding, there is no evidence that it causes fever. Therefore, the patient’s new symptoms are more likely due to a respiratory tract infection. Anastomotic leak is unlikely as the patient is still not eating or drinking. Surgical site infections are more common after day 5, and urinary tract infections would not explain the patient’s shortness of breath.
Complications can occur in all types of surgery and require vigilance in their detection. Anticipating likely complications and appropriate avoidance can minimize their occurrence. Understanding the anatomy of a surgical field will allow appreciation of local and systemic complications that may occur. Physiological and biochemical derangements may also occur, and appropriate diagnostic modalities should be utilized. Safe and timely intervention is the guiding principle for managing complications.
-
This question is part of the following fields:
- Surgery
-
-
Question 17
Incorrect
-
A 68-year-old male presents for a follow-up appointment after undergoing an abdominal aorta ultrasound. The width of his aorta is measured at 4.9 cm, which is an increase from 3.5 cm during his previous free screening appointment a year ago. Despite being asymptomatic, what would be the recommended course of action for his management?
Your Answer:
Correct Answer: Refer to vascular surgery to be seen within 2 weeks
Explanation:Referral to vascular surgery within 2 weeks is necessary for rapidly enlarging aneurysms of any size, even if asymptomatic. In this case, the patient’s aorta width has increased by 1.4 cm in one year, which represents a high rupture risk and requires intervention. Therefore, the correct answer is to refer the patient to vascular surgery. The answer no further action necessary is incorrect as the patient’s condition requires referral. Similarly, the answers re-scan in 3 months and re-scan in 6 months are incorrect as they do not address the high rupture risk and the need for intervention.
Abdominal aortic aneurysm (AAA) is a condition that often develops without any symptoms. However, a ruptured AAA can be fatal, which is why it is important to screen patients for this condition. Screening involves a single abdominal ultrasound for males aged 65. The results of the screening are interpreted based on the width of the aorta. If the width is less than 3 cm, no further action is needed. If it is between 3-4.4 cm, the patient should be rescanned every 12 months. For a width of 4.5-5.4 cm, the patient should be rescanned every 3 months. If the width is 5.5 cm or more, the patient should be referred to vascular surgery within 2 weeks for probable intervention.
For patients with a low risk of rupture, which includes those with a small or medium aneurysm (i.e. aortic diameter less than 5.5 cm) and no symptoms, abdominal US surveillance should be conducted on the time-scales outlined above. Additionally, cardiovascular risk factors should be optimized, such as quitting smoking. For patients with a high risk of rupture, which includes those with a large aneurysm (i.e. aortic diameter of 5.5 cm or more) or rapidly enlarging aneurysm (more than 1 cm/year) or those with symptoms, they should be referred to vascular surgery within 2 weeks for probable intervention. Treatment for these patients may involve elective endovascular repair (EVAR) or open repair if EVAR is not suitable. EVAR involves placing a stent into the abdominal aorta via the femoral artery to prevent blood from collecting in the aneurysm. However, a complication of EVAR is an endo-leak, which occurs when the stent fails to exclude blood from the aneurysm and usually presents without symptoms on routine follow-up.
-
This question is part of the following fields:
- Surgery
-
-
Question 18
Incorrect
-
A 28-year-old male patient complains of a tender swelling in the natal cleft that has been present for two days. Upon examination, three midline pits are observed, and there is a fluctuant swelling to the right of the natal cleft. What is the probable diagnosis?
Your Answer:
Correct Answer: Pilonidal abscess
Explanation:Pilonidal and Perianal Abscesses
Pilonidal abscesses are a type of inflammatory condition that occurs when hair produces a sinus. These abscesses are typically found in or near the midline of the body, close to the natal cleft. They are more common in Caucasian males who are in their thirties, particularly those who are obese or have a lot of body hair.
When someone presents with a pilonidal abscess, they will typically undergo an incision and drainage procedure. However, if the disease becomes non-healing or recurrent, a more definitive procedure such as excision may be required.
Perianal and ischiorectal abscesses, on the other hand, are caused by an infection of the anal glands found in the intersphincteric space. These abscesses can also be treated with incision and drainage procedures, but may require more extensive treatment if they become chronic or recurrent.
Overall, the causes and treatments of pilonidal and perianal abscesses is important for anyone who may be at risk for these conditions. By seeking prompt medical attention and following a proper treatment plan, individuals can manage these conditions and prevent them from becoming more serious.
-
This question is part of the following fields:
- Surgery
-
-
Question 19
Incorrect
-
A 6-month-old baby girl is presented to the GP by her mother who noticed a bulge in her groin area. The baby is healthy and there are no other concerns reported. During the examination, a mass is observed and palpated in the right inguinal region. The mass cannot be transilluminated but can be reduced. What is the most suitable management plan for this probable diagnosis?
Your Answer:
Correct Answer: Urgent referral for surgery
Explanation:An infant with a mass in the inguinal region is diagnosed with an inguinal hernia. Urgent surgery is necessary due to the high risk of strangulation in infants. If signs of strangulation are present, emergency care should be sought immediately. Referring for an ultrasound scan is not necessary as the diagnosis is clear. Routine referral is not appropriate as urgent referral is required. Re-review in 1 week with safety-netting is inadequate and reassuring and observing over the next 3 months is not an option as this condition requires urgent 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.
-
This question is part of the following fields:
- Surgery
-
-
Question 20
Incorrect
-
A 26-year-old man has been hit on the side of his head with a cricket bat. Upon initial examination, he has a Glasgow Coma Score (GCS) of 12 and shows some bruising at the point of impact. There are no indications of a basal skull fracture or any neurological impairments. He has not experienced vomiting or seizures. What would be the most suitable course of action?
Your Answer:
Correct Answer: Perform a CT head scan within 1 hour
Explanation:When it comes to detecting significant brain injuries in emergency situations, CT scans of the head are currently the preferred method of investigation. MRI scans are not typically used due to safety concerns, logistical challenges, and resource limitations. If a patient’s initial assessment in the emergency department reveals a Glasgow Coma Scale (GCS) score of less than 13, a CT head scan should be performed within one hour. The specific indications for an immediate CT head scan in this scenario can be found in the guidelines provided by NICE (2014) for the assessment and early management of head injuries.
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.
-
This question is part of the following fields:
- Surgery
-
-
Question 21
Incorrect
-
A 55-year-old man was brought to the emergency department with sudden abdominal pain and vomiting. The general surgeons diagnosed him with pancreatitis and he was given IV fluids and pain relief by the registrar. The FY1 was then asked to complete a Modified Glasgow Score to determine the severity of the pancreatitis. What information will the FY1 need to gather to complete this task?
Your Answer:
Correct Answer: Urea level
Explanation:The Modified Glasgow Score is utilized for predicting the severity of pancreatitis. If three or more of the following factors are identified within 48 hours of onset, it indicates severe pancreatitis: Pa02 <8 kPa, age >55 years, neutrophilia WBC >15×10^9, calcium <2mmol/L, renal function urea >16 mmol/L, enzymes LDH >600 ; AST >200, albumin <32g/L, and blood glucose >10 mmol/L. To remember these factors easily, one can use the acronym PANCREAS. This information can be found in the Oxford Handbook of Clinical Medicine, 9th edition, on pages 638-639.
Acute pancreatitis is a condition that is mainly caused by gallstones and alcohol in the UK. A popular mnemonic to remember the causes is GET SMASHED, which stands for gallstones, ethanol, trauma, steroids, mumps, autoimmune diseases, scorpion venom, hypertriglyceridaemia, hyperchylomicronaemia, hypercalcaemia, hypothermia, ERCP, and certain drugs. CT scans of patients with acute pancreatitis show diffuse parenchymal enlargement with oedema and indistinct margins. It is important to note that pancreatitis is seven times more common in patients taking mesalazine than sulfasalazine.
-
This question is part of the following fields:
- Surgery
-
-
Question 22
Incorrect
-
You are consulting with a 30-year-old male who is experiencing difficulties with his erections. He is generally healthy, a non-smoker, and consumes 8-10 units of alcohol per week. He has been in a committed relationship for 3 years, but this issue is beginning to impact their intimacy.
Before providing advice, you proceed to gather a complete psychosexual history. What information from the following list would indicate a physical rather than psychological origin for his condition?Your Answer:
Correct Answer: A normal libido
Explanation:Erectile dysfunction (ED) is a condition where a person is unable to achieve or maintain an erection that is sufficient for satisfactory sexual performance. The causes of ED can be categorized into organic, psychogenic, or mixed, and can also be caused by certain medications. Symptoms that suggest a psychogenic cause include a sudden onset, early loss of erection, self-stimulated or waking erections, premature ejaculation or inability to ejaculate, problems or changes in a relationship, major life events, and psychological problems. On the other hand, symptoms that suggest an organic cause include a gradual onset, normal ejaculation, normal libido (except in hypogonadal men), risk factors in medical history (cardiovascular, endocrine or neurological), operations, radiotherapy, or trauma to the pelvis or scrotum, current use of drugs recognized as associated with ED, smoking, high alcohol consumption, and use of recreational or bodybuilding drugs.
Erectile dysfunction (ED) is a condition where a man is unable to achieve or maintain an erection that is sufficient for sexual activity. It is not a disease but a symptom that can be caused by organic, psychogenic, or mixed factors. It is important to differentiate between the causes of ED, with gradual onset of symptoms, lack of tumescence, and normal libido favoring an organic cause, while sudden onset of symptoms, decreased libido, and major life events favoring a psychogenic cause. Risk factors for ED include cardiovascular disease, alcohol use, and certain medications.
To assess for ED, it is recommended to measure lipid and fasting glucose serum levels to calculate cardiovascular risk, as well as free testosterone levels in the morning. If free testosterone is low or borderline, further assessment may be needed. PDE-5 inhibitors, such as sildenafil, are the first-line treatment for ED and should be prescribed to all patients regardless of the cause. Vacuum erection devices can be used as an alternative for those who cannot or will not take PDE-5 inhibitors.
For young men who have always had difficulty achieving an erection, referral to urology is appropriate. Additionally, people with ED who cycle for more than three hours per week should be advised to stop. Overall, ED is a common condition that can be effectively managed with appropriate treatment.
-
This question is part of the following fields:
- Surgery
-
-
Question 23
Incorrect
-
A 28-year-old woman is recovering on the ward after experiencing a subarachnoid haemorrhage 6 days ago. She has been able to maintain her oral fluid intake above 3 litres per day and her heart rate is 72 bpm at rest, while her blood pressure is 146/88 mmHg at rest. Over the last 6 days, her fluid balance shows that she is net positive 650 ml. Her daily blood tests reveal the following results:
- Hb 134 g/l
- Platelets 253 * 109/l
- WBC 5.1 * 109/l
- Neuts 3.9 * 109/l
- Lymphs 1.2 * 109/l
- Na+ 129 mmol/l
- K+ 4.1 mmol/l
- Urea 2.3 mmol/l
- Creatinine 49 µmol/l
- CRP 12.3 mg/l
Paired serum and urine samples show the following:
- Serum Osmolality 263 mosm/l
- Urine Osmolality 599 mosm/l
- Serum Na+ 129 mmol/l
- Urine Na+ 63 mmol/l
What is the most likely reason for the patient's hyponatraemia?Your Answer:
Correct Answer: Syndrome of inappropriate antidiuretic hormone secretion (SIADH)
Explanation:Subarachnoid haemorrhage often leads to SIADH.
To determine the cause of the low sodium levels, the paired serum and urine samples and fluid status must be examined. The patient’s positive fluid balance and stable haemodynamics suggest that diabetes insipidus or adrenal insufficiency, which cause fluid depletion, are unlikely causes. The high urine sodium levels indicate either excessive sodium loss or excessive water retention. If the cause were iatrogenic, the urine would be as dilute as the serum.
Cerebral salt-wasting syndrome can occur after subarachnoid haemorrhage, but it results in both sodium and water loss, as the kidneys are functioning normally and urine output is high. In contrast, SIADH causes the kidneys to retain too much water, leading to diluted serum sodium levels and concentrated urine, as seen in this case.
A subarachnoid haemorrhage (SAH) is a type of bleeding that occurs within the subarachnoid space of the meninges in the brain. It can be caused by head injury or occur spontaneously. Spontaneous SAH is often caused by an intracranial aneurysm, which accounts for around 85% of cases. Other causes include arteriovenous malformation, pituitary apoplexy, and mycotic aneurysms. The classic symptoms of SAH include a sudden and severe headache, nausea and vomiting, meningism, coma, seizures, and ECG changes.
The first-line investigation for SAH is a non-contrast CT head, which can detect acute blood in the basal cisterns, sulci, and ventricular system. If the CT is normal within 6 hours of symptom onset, a lumbar puncture is not recommended. However, if the CT is normal after 6 hours, a lumbar puncture should be performed at least 12 hours after symptom onset to check for xanthochromia and other CSF findings consistent with SAH. If SAH is confirmed, referral to neurosurgery is necessary to identify the underlying cause and provide urgent treatment.
Management of aneurysmal SAH involves supportive care, such as bed rest, analgesia, and venous thromboembolism prophylaxis. Vasospasm is prevented with oral nimodipine, and intracranial aneurysms require prompt intervention to prevent rebleeding. Most aneurysms are treated with a coil by interventional neuroradiologists, but some require a craniotomy and clipping by a neurosurgeon. Complications of aneurysmal SAH include re-bleeding, hydrocephalus, vasospasm, and hyponatraemia. Predictive factors for SAH include conscious level on admission, age, and amount of blood visible on CT head.
-
This question is part of the following fields:
- Surgery
-
-
Question 24
Incorrect
-
A 25-year-old man comes to his doctor complaining of rectal pain that has been bothering him for the past 4 days. He describes the pain as sharp and shooting, and it gets worse when he has a bowel movement or engages in anal sex. The patient has a history of constipation. During the examination, a small tear is visible on the posterior aspect of the anal margin. The doctor offers the patient appropriate pain relief. What is the best initial course of action?
Your Answer:
Correct Answer: Bulk-forming laxatives
Explanation:Conservative management should be attempted first for the treatment of fissures, as most cases will resolve with this approach. If conservative management is not effective, lateral partial internal sphincterotomy is the preferred surgical treatment. Loperamide is not recommended as it can worsen the condition by increasing constipation and straining. Topical glyceryl trinitrate is effective in treating chronic anal fissures by relaxing the musculature and expanding blood vessels, but it is not the first-line treatment for acute anal fissures.
Understanding Anal Fissures: Causes, Symptoms, and Treatment
Anal fissures are tears in the lining of the distal anal canal that can be either acute or chronic. Acute fissures last for less than six weeks, while chronic fissures persist for more than six weeks. The most common risk factors for anal fissures include constipation, inflammatory bowel disease, and sexually transmitted infections such as HIV, syphilis, and herpes.
Symptoms of anal fissures include painful, bright red rectal bleeding, with around 90% of fissures occurring on the posterior midline. If fissures are found in other locations, underlying causes such as Crohn’s disease should be considered.
Management of acute anal fissures involves softening stool, dietary advice, bulk-forming laxatives, lubricants, topical anaesthetics, and analgesia. For chronic anal fissures, the same techniques should be continued, and topical glyceryl trinitrate (GTN) is the first-line treatment. If GTN is not effective after eight weeks, surgery (sphincterotomy) or botulinum toxin may be considered, and referral to secondary care is recommended.
In summary, anal fissures can be a painful and uncomfortable condition, but with proper management, they can be effectively treated. It is important to identify and address underlying risk factors to prevent the development of chronic fissures.
-
This question is part of the following fields:
- Surgery
-
-
Question 25
Incorrect
-
A 28-year-old woman comes to the clinic with a lump in her left breast that has appeared suddenly over the past month. She is very concerned about it and describes it as being located below the nipple. Additionally, she has noticed mild tenderness to the lump. She cannot recall any triggers or trauma that may have caused it. During the examination, a well-defined, 2 cm mobile mass is palpated in the left breast. There is no skin discoloration or discharge present. What is the most probable diagnosis?
Your Answer:
Correct Answer: Fibroadenoma
Explanation:If a female under 30 years old has a lump that is non-tender, discrete, and mobile, it is likely a fibroadenoma. This type of lump can sometimes be tender. Fibroadenosis, on the other hand, is more common in older women and is described as painful and lumpy, especially around menstruation. Ductal carcinoma is also more common in older women and can present with a painless lump, nipple changes, nipple discharge, and changes in the skin’s contour. Fat necrosis lumps tend to be hard and irregular, while an abscess would show signs of inflammation such as redness, fever, and pain.
Breast Disorders: Common Features and Characteristics
Breast disorders are a common occurrence among women of all ages. The most common breast disorders include fibroadenoma, fibroadenosis, breast cancer, Paget’s disease of the breast, mammary duct ectasia, duct papilloma, fat necrosis, and breast abscess. Fibroadenoma is a non-tender, highly mobile lump that is common in women under the age of 30. Fibroadenosis, on the other hand, is characterized by lumpy breasts that may be painful, especially before menstruation. Breast cancer is a hard, irregular lump that may be accompanied by nipple inversion or skin tethering. Paget’s disease of the breast is associated with a reddening and thickening of the nipple/areola, while mammary duct ectasia is characterized by dilation of the large breast ducts, which may cause a tender lump around the areola and a green nipple discharge. Duct papilloma is characterized by local areas of epithelial proliferation in large mammary ducts, while fat necrosis is more common in obese women with large breasts and may mimic breast cancer. Breast abscess, on the other hand, is more common in lactating women and is characterized by a red, hot, and tender swelling. Lipomas and sebaceous cysts may also develop around the breast tissue.
Common Features and Characteristics of Breast Disorders
Breast disorders are a common occurrence among women of all ages. The most common breast disorders include fibroadenoma, fibroadenosis, breast cancer, Paget’s disease of the breast, mammary duct ectasia, duct papilloma, fat necrosis, and breast abscess. Each of these disorders has its own unique features and characteristics that can help identify them. Understanding these features and characteristics can help women identify potential breast disorders and seek appropriate medical attention. It is important to note that while some breast disorders may be benign, others may be malignant or premalignant, and further investigation is always warranted. Regular breast exams and mammograms can also help detect breast disorders early, increasing the chances of successful treatment.
-
This question is part of the following fields:
- Surgery
-
-
Question 26
Incorrect
-
An 78-year-old man with a history of diabetes, hypertension, hypercholesterolaemia, and previous myocardial infarction presents to his GP with intermittent abdominal pain for the past two months. The pain is dull and radiates to his lower back. During examination, a pulsatile expansile mass is found in the central abdomen. The patient had a previous US abdomen six months ago, which showed an abdominal aortic diameter of 5.1 cm. The GP repeats the US abdomen and refers the patient to the vascular clinic. The vascular surgeon reviews the patient's US report, which shows no focal pancreatic, liver, or gallbladder disease, trace free fluid, an abdominal aorta diameter of 5.4 cm, no biliary duct dilation, and normal-sized and mildly echogenic kidneys. What aspect of the patient's history indicates that surgery may be necessary?
Your Answer:
Correct Answer: Abdominal pain
Explanation:If a patient experiences abdominal pain, it is likely that they have a symptomatic AAA which poses a high risk of rupture. In such cases, surgical intervention, specifically endovascular repair (EVAR), is necessary rather than relying on medical treatment or observation. To be classified as high rupture risk, the abdominal aortic diameter must exceed 5.5 cm, which is a close call. The presence of trace free fluid is generally considered normal. Conservative measures, such as quitting smoking, should be taken to address cardiovascular risk factors. An AAA is only considered high-risk due to velocity of growth if it increases by more than 1 cm per year, which equates to a velocity of growth of 0.3 cm over 6 months or 0.6cm over 1 year. Ultimately, the decision to proceed with elective surgery is a complex one that should be made in consultation with the patient and surgeon.
Abdominal aortic aneurysm (AAA) is a condition that often develops without any symptoms. However, a ruptured AAA can be fatal, which is why it is important to screen patients for this condition. Screening involves a single abdominal ultrasound for males aged 65. The results of the screening are interpreted based on the width of the aorta. If the width is less than 3 cm, no further action is needed. If it is between 3-4.4 cm, the patient should be rescanned every 12 months. For a width of 4.5-5.4 cm, the patient should be rescanned every 3 months. If the width is 5.5 cm or more, the patient should be referred to vascular surgery within 2 weeks for probable intervention.
For patients with a low risk of rupture, which includes those with a small or medium aneurysm (i.e. aortic diameter less than 5.5 cm) and no symptoms, abdominal US surveillance should be conducted on the time-scales outlined above. Additionally, cardiovascular risk factors should be optimized, such as quitting smoking. For patients with a high risk of rupture, which includes those with a large aneurysm (i.e. aortic diameter of 5.5 cm or more) or rapidly enlarging aneurysm (more than 1 cm/year) or those with symptoms, they should be referred to vascular surgery within 2 weeks for probable intervention. Treatment for these patients may involve elective endovascular repair (EVAR) or open repair if EVAR is not suitable. EVAR involves placing a stent into the abdominal aorta via the femoral artery to prevent blood from collecting in the aneurysm. However, a complication of EVAR is an endo-leak, which occurs when the stent fails to exclude blood from the aneurysm and usually presents without symptoms on routine follow-up.
-
This question is part of the following fields:
- Surgery
-
-
Question 27
Incorrect
-
A 29-year-old man has been waiting for surgery to repair a right inguinal hernia. He is now admitted with abdominal distension and colicky pain, along with vomiting bile and no bowel movements for two days. He is typically healthy and not on any medication. On examination, he appears dehydrated with a red, tender swelling in the right groin. X-rays confirm a small bowel obstruction, and a nasogastric tube is inserted. What is the most appropriate course of treatment for this patient?
Your Answer:
Correct Answer: Surgery with decompression of the bowel and hernia repair
Explanation:Management of Small Bowel Obstruction
Small bowel obstruction is a condition that requires a certain diagnosis before surgery. However, in cases where the cause of the obstruction is an obstructed groin hernia, a contrast study or ultrasound scan of the groin is unnecessary. The patient should be well resuscitated and undergo surgery to reduce and inspect the bowel for viability. Repair of the hernia should proceed, and inspection of incarcerated bowel is important.
In cases of adhesional obstruction, expectant drip and suck management may be appropriate, as the obstruction may settle with adequate decompression of the bowel. A contrast study may also be helpful in incomplete obstruction, as gastrografin has a therapeutic laxative effect. However, indications for surgery in bowel obstruction are an obstructed hernia and signs of peritonism, which indicate ischaemic bowel.
In summary, the management of small bowel obstruction depends on the cause of the obstruction. In cases of an obstructed groin hernia, surgery is necessary, while expectant management may be appropriate in adhesional obstruction. A contrast study may also be helpful in incomplete obstruction. It is important to consider the indications for surgery, such as signs of peritonism, to prevent further complications.
-
This question is part of the following fields:
- Surgery
-
-
Question 28
Incorrect
-
A 28-year-old male patient visits his GP complaining of a painless lump in his scrotum. He admits to not regularly performing self-examinations and reports no other symptoms. Upon examination, his left testicle is enlarged. The GP orders a two-week-wait ultrasound scan of the testicles, which reveals a cystic lesion with mixed solid echoes in the affected testicle. What tumor marker is linked to this condition?
Your Answer:
Correct Answer: Alpha fetoprotein (AFP)
Explanation:Teratomas, a type of non-seminoma germ cell testicular tumours, are known to cause elevated levels of hCG and AFP. In a young male with a painless testicular mass, an ultrasound scan revealed a cystic lesion with echoes that suggest the presence of mucinous/sebaceous material, hair follicles, etc., pointing towards a teratoma. While CEA is a tumour marker primarily used in colorectal cancer, PSA is an enzyme produced in the prostate and CA 15-3 is a tumour marker commonly associated with breast cancer. None of these markers are typically elevated in teratomas.
Understanding Testicular Cancer
Testicular cancer is a type of cancer that commonly affects men between the ages of 20 and 30. Germ-cell tumors are the most common type of testicular cancer, accounting for around 95% of cases. These tumors can be divided into seminomas and non-seminomas, which include embryonal, yolk sac, teratoma, and choriocarcinoma. Other types of testicular cancer include Leydig cell tumors and sarcomas. Risk factors for testicular cancer include infertility, cryptorchidism, family history, Klinefelter’s syndrome, and mumps orchitis.
The most common symptom of testicular cancer is a painless lump, although some men may experience pain. Other symptoms may include hydrocele and gynaecomastia, which occurs due to an increased oestrogen:androgen ratio. Tumor markers such as hCG, AFP, and beta-hCG may be elevated in germ cell tumors. Ultrasound is the first-line diagnostic tool for testicular cancer.
Treatment for testicular cancer depends on the type and stage of the tumor. Orchidectomy, chemotherapy, and radiotherapy may be used. Prognosis for testicular cancer is generally excellent, with a 5-year survival rate of around 95% for seminomas and 85% for teratomas if caught at Stage I. It is important for men to perform regular self-examinations and seek medical attention if they notice any changes or abnormalities in their testicles.
-
This question is part of the following fields:
- Surgery
-
-
Question 29
Incorrect
-
A 50-year-old woman visited her doctor with complaints of intense pain in the anal area. She recalled that the pain began after straining during a bowel movement. She had been constipated for the past week and had been using over-the-counter laxatives. During the examination, the doctor noticed a painful, firm, blue-black lump at the edge of the anus. What is the probable cause of her symptoms?
Your Answer:
Correct Answer: Thrombosed haemorrhoid
Explanation:Thrombosed haemorrhoids are characterized by severe pain and the presence of a tender lump. Upon examination, a purplish, swollen, and tender subcutaneous perianal mass can be observed. If the patient seeks medical attention within 72 hours of onset, referral for excision may be necessary. However, if the condition has progressed beyond this timeframe, patients can typically manage their symptoms with stool softeners, ice packs, and pain relief medication. Symptoms usually subside within 10 days.
-
This question is part of the following fields:
- Surgery
-
-
Question 30
Incorrect
-
What actions can result in a transverse fracture of the medial malleolus of the tibia?
Your Answer:
Correct Answer: Eversion
Explanation:Three Sequential Injuries Caused by Pronated Foot and Abducting Force
The injury mechanism that occurs when a pronated foot experiences an abducting force on the talus can result in up to three sequential injuries. The first injury is a transverse fracture of the medial malleolus, which is caused by a tense deltoid ligament. The second injury occurs when the abducting talus stresses the tibiofibular syndesmosis, resulting in a tear of the anterior tibiofibular ligament. Finally, continued abduction of the talus can lead to an oblique fracture of the distal fibula.
This sequence of injuries can be quite serious and may require medical attention. It is important to be aware of the potential risks associated with a pronated foot and to take steps to prevent injury. This may include wearing appropriate footwear, using orthotics or other supportive devices, and avoiding activities that put excessive stress on the foot and ankle. By taking these precautions, individuals can reduce their risk of experiencing these types of injuries and maintain their overall health and well-being.
-
This question is part of the following fields:
- Surgery
-
00
Correct
00
Incorrect
00
:
00
:
00
Session Time
00
:
00
Average Question Time (
Secs)