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  • Question 1 - A 56-year-old woman presents with dyspepsia and an endoscopy reveals a gastric ulcer....

    Correct

    • A 56-year-old woman presents with dyspepsia and an endoscopy reveals a gastric ulcer. A CLO test confirms H. pylori infection and she is treated with eradication therapy. However, at her follow-up appointment six weeks later, her symptoms persist. What is the best test to confirm H. pylori eradication?

      Your Answer: Urea breath test

      Explanation:

      The sole recommended test for H. pylori after eradication therapy is the urea breath test. It should be noted that H. pylori serology will still show positive results even after eradication. In such cases, a stool antigen test, rather than culture, may be a suitable alternative.

      Tests for Helicobacter pylori

      There are several tests available to diagnose Helicobacter pylori infection. One of the most common tests is the urea breath test, where patients consume a drink containing carbon isotope 13 (13C) enriched urea. The urea is broken down by H. pylori urease, and after 30 minutes, the patient exhales into a glass tube. Mass spectrometry analysis calculates the amount of 13C CO2, which indicates the presence of H. pylori. However, this test should not be performed within four weeks of treatment with an antibacterial or within two weeks of an antisecretory drug.

      Another test is the rapid urease test, also known as the CLO test. This involves mixing a biopsy sample with urea and a pH indicator. If there is a color change, it indicates the presence of H. pylori urease activity. Serum antibody tests can also be used, but they remain positive even after eradication. Culture of gastric biopsy can provide information on antibiotic sensitivity, while histological evaluation alone can be done through gastric biopsy. Lastly, the stool antigen test has a sensitivity of 90% and specificity of 95%.

      Overall, these tests have varying levels of sensitivity and specificity, and the choice of test depends on the patient’s clinical presentation and the availability of resources.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
      16.3
      Seconds
  • Question 2 - A 63-year-old woman presents for follow-up. She completed a 6 month course of...

    Incorrect

    • A 63-year-old woman presents for follow-up. She completed a 6 month course of warfarin a year ago after being diagnosed with an unprovoked, proximal deep vein thrombosis. Over the past few weeks, she has been experiencing a sensation of heaviness and aching in the same leg, accompanied by itching and some swelling that subsides each night. Her medical history includes osteoarthritis and type 2 diabetes mellitus. On examination, there are prominent varicose veins on the affected leg, and the skin above the medial malleolus is discolored. The calves have no difference in circumference. Her vital signs are as follows: temperature 36.9ºC, pulse 78/min, and blood pressure 108/82 mmHg. What is the most probable diagnosis?

      Your Answer: Necrobiosis lipoidica

      Correct Answer: Post-thrombotic syndrome

      Explanation:

      The symptoms of pruritus and pain that gradually worsen, along with the results of the examination, indicate a high likelihood of post-thrombotic syndrome.

      Post-Thrombotic Syndrome: A Complication of Deep Vein Thrombosis

      Post-thrombotic syndrome is a clinical syndrome that may develop following a deep vein thrombosis (DVT). It is caused by venous outflow obstruction and venous insufficiency, which leads to chronic venous hypertension. Patients with post-thrombotic syndrome may experience painful, heavy calves, pruritus, swelling, varicose veins, and venous ulceration.

      In the past, compression stockings were offered to patients with DVT to reduce the risk of post-thrombotic syndrome. However, current recommendations state that elastic graduated compression stockings should not be used to prevent post-thrombotic syndrome or VTE recurrence after a proximal DVT. This recommendation does not cover the use of elastic stockings for the management of leg symptoms after DVT.

      Once post-thrombotic syndrome has developed, compression stockings are a recommended treatment. Other recommendations include keeping the leg elevated. It is important for healthcare providers to recognize the potential complications of DVT and to provide appropriate management to prevent the development of post-thrombotic syndrome.

    • This question is part of the following fields:

      • Cardiovascular
      223.4
      Seconds
  • Question 3 - A 52-year-old Caucasian man presents with blood pressure readings of 150/100 mmHg, 148/95mmHg...

    Correct

    • A 52-year-old Caucasian man presents with blood pressure readings of 150/100 mmHg, 148/95mmHg and 160/95mmHg during three consecutive visits to his GP surgery. He refuses ambulatory blood pressure monitoring due to its interference with his job as a construction worker. His home blood pressure readings are consistently above 150/95mmHg. What is the most appropriate initial approach to manage his condition?

      Your Answer: Ramipril

      Explanation:

      For a newly diagnosed patient with hypertension who is under 55 years old and has stage 2 hypertension, it is recommended to add either an ACE inhibitor or an angiotensin receptor blocker. This is in accordance with the NICE guidelines, which suggest that antihypertensive drug treatments should be offered to individuals of any age with stage 2 hypertension. If the patient is 55 years or older, a calcium channel blocker like amlodipine is recommended instead.

      NICE Guidelines for Managing Hypertension

      Hypertension, or high blood pressure, is a common condition that can lead to serious health problems if left untreated. The National Institute for Health and Care Excellence (NICE) has published updated guidelines for the management of hypertension in 2019. Some of the key changes include lowering the threshold for treating stage 1 hypertension in patients under 80 years old, allowing the use of angiotensin receptor blockers instead of ACE inhibitors, and recommending the use of a calcium channel blocker or thiazide-like diuretic in addition to an ACE inhibitor or angiotensin receptor blocker.

      The guidelines also provide a flow chart for the diagnosis and management of hypertension. Lifestyle advice, such as reducing salt intake, caffeine intake, and alcohol consumption, as well as exercising more and losing weight, should not be forgotten and is frequently tested in exams. Treatment options depend on the patient’s age, ethnicity, and other factors, and may involve a combination of drugs.

      NICE recommends treating stage 1 hypertension in patients under 80 years old if they have target organ damage, established cardiovascular disease, renal disease, diabetes, or a 10-year cardiovascular risk equivalent to 10% or greater. For patients with stage 2 hypertension, drug treatment should be offered regardless of age. The guidelines also provide step-by-step treatment options, including adding a third or fourth drug if necessary.

      New drugs, such as direct renin inhibitors like Aliskiren, may have a role in patients who are intolerant of more established antihypertensive drugs. However, trials have only investigated the fall in blood pressure and no mortality data is available yet. Patients who fail to respond to step 4 measures should be referred to a specialist. The guidelines also provide blood pressure targets for different age groups.

    • This question is part of the following fields:

      • Cardiovascular
      43.9
      Seconds
  • Question 4 - A 60-year-old man had a left mastectomy three years ago for breast cancer....

    Incorrect

    • A 60-year-old man had a left mastectomy three years ago for breast cancer. He has now presented with a 4-month history of progressive ataxia and dysarthria. On examination, there is gaze-evoked nystagmus, dysarthria, upper limb ataxia and gait ataxia. Power, tone, reflexes and sensation are normal. Plantar response is flexor bilaterally. Computerised tomography (CT) and magnetic resonance imaging (MRI) of the brain and cerebrospinal fluid (CSF) microscopy are normal.
      Which one of the following is the most likely cause of his ataxia?

      Your Answer: Multiple sclerosis (MS)

      Correct Answer: Paraneoplastic cerebellum syndrome

      Explanation:

      Differential diagnosis for a patient with subacute cerebellar dysfunction and normal imaging

      Paraneoplastic cerebellum syndrome, multiple sclerosis, cerebellar metastasis, malignant meningitis, and Wernicke’s encephalopathy are among the possible diagnoses for a patient presenting with subacute onset of cerebellar signs and normal imaging.

      Paraneoplastic cerebellum syndrome is a rare immune-mediated complication of many cancers, which may be diagnosed before the underlying tumour. Symptoms develop rapidly and include dizziness, nausea, vertigo, nystagmus, ataxia, oscillopsia, dysarthria, tremor, dysphagia, and blurry vision. MRI may be normal, but CSF may show raised protein and anti-neuronal antibodies.

      Multiple sclerosis is more common in women and usually presents with transient episodes of visual change or limb weakness/paraesthesiae, as well as bladder and cerebellar dysfunction. MRI may visualise plaques of demyelination, and CSF shows oligoclonal bands.

      Cerebellar metastasis could occur in breast cancer, but it would be visualised on MRI.

      Malignant meningitis occurs when cancer spreads to the meninges and presents with confusion, headaches, and weakness. Imaging and CSF would be abnormal.

      Wernicke’s encephalopathy is due to thiamine deficiency, typically seen in alcoholics, and presents with acute confusional state, ophthalmoplegia, and gait ataxia. Dysarthria is not usually a feature. Thiamine deficiency is not suggested by this patient’s history.

    • This question is part of the following fields:

      • Neurology
      15.9
      Seconds
  • Question 5 - As you review the blood results of a 65-year-old man who has been...

    Incorrect

    • As you review the blood results of a 65-year-old man who has been diagnosed with hypertension, you notice that a HbA1c level was requested as part of the routine work-up. What HbA1c range would be indicative of prediabetes?

      Your Answer: 31-36 mmol/mol (5.0-5.4%)

      Correct Answer: 42-47 mmol/mol (6.0-6.4%)

      Explanation:

      Understanding Prediabetes and Impaired Glucose Regulation

      Prediabetes is a term used to describe impaired glucose levels that are higher than normal but not yet high enough to be diagnosed as diabetes mellitus. This includes individuals with impaired fasting glucose (IFG) or impaired glucose tolerance (IGT). Diabetes UK estimates that around 1 in 7 adults in the UK have prediabetes, and many of them will eventually develop type 2 diabetes mellitus (T2DM), putting them at risk of microvascular and macrovascular complications.

      To identify patients with prediabetes, NICE recommends using a validated computer-based risk assessment tool for adults aged 40 and over, people of South Asian and Chinese descent aged 25-39, and adults with conditions that increase the risk of T2DM. Patients identified as high risk should have a blood sample taken, and a fasting plasma glucose of 6.1-6.9 mmol/l or an HbA1c level of 42-47 mmol/mol (6.0-6.4%) indicates high risk.

      Lifestyle modifications such as weight loss, increased exercise, and changes in diet are recommended for managing prediabetes. NICE also recommends metformin for adults at high risk who are still progressing towards T2DM despite lifestyle changes.

      There are two main types of impaired glucose regulation: impaired fasting glucose (IFG) and impaired glucose tolerance (IGT). IFG is due to hepatic insulin resistance, while IGT is due to muscle insulin resistance. Patients with IGT are more likely to develop T2DM and cardiovascular disease than those with IFG.

      To rule out a diagnosis of diabetes, people with IFG should be offered an oral glucose tolerance test. A result below 11.1 mmol/l but above 7.8 mmol/l indicates that the person doesn’t have diabetes but does have IGT. It is important to understand prediabetes and impaired glucose regulation to prevent the progression to T2DM and its associated complications.

    • This question is part of the following fields:

      • Endocrinology/Metabolic Disease
      70.3
      Seconds
  • Question 6 - A 65-year-old woman presents to the Emergency Department with a cough, fever, diarrhoea...

    Correct

    • A 65-year-old woman presents to the Emergency Department with a cough, fever, diarrhoea and myalgia. The cough is non-productive and has been getting gradually worse since she returned from holiday in Italy one week ago. Her daughter is concerned because over the past 24 hours she has become more drowsy and febrile. She is normally fit and well but drinks around 15 units of alcohol per week.

      On examination, pulse is 80/min, blood pressure 110/70 mmHg, oxygen saturations are 95% on room air and temperature is 38.2ºC. Bilateral coarse crackles are heard in the chest.

      Initial blood tests show the following:
      Hb 13.8 g/dl
      Platelets 300 * 109/l
      WBC 14.5 * 109/l
      Na+ 132 mmol/l
      K+ 4.1 mmol/l
      Urea 8.9 mmol/l
      Creatinine 89 µmol/l
      Bilirubin 11 µmol/l
      ALP 35 u/l
      ALT 62 u/l

      A chest x-ray shows patchy consolidation in the right lower zone with an associated pleural effusion.

      What is the most likely causative organism?

      Your Answer: Legionella pneumophila

      Explanation:

      Legionella is often characterized by symptoms resembling the flu, such as a dry cough, confusion, and a slower than normal heart rate. Additionally, hyponatremia may be detected through blood tests. A history of recent travel abroad and the presence of pleural effusion are also indicative of Legionella.

      Legionnaire’s Disease: Symptoms, Diagnosis, and Management

      Legionnaire’s disease is a type of pneumonia caused by the Legionella pneumophilia bacterium, which is commonly found in water tanks. It is not transmitted from person to person. Symptoms of the disease include flu-like symptoms such as fever, dry cough, confusion, and lymphopaenia. Other features include relative bradycardia, hyponatraemia, and deranged liver function tests. Pleural effusion is seen in around 30% of patients.

      Diagnosis of Legionnaire’s disease can be done through a urinary antigen test. Treatment involves the use of erythromycin or clarithromycin. Chest x-ray features of the disease are non-specific but may include patchy consolidation with a mid-to-lower zone predominance.

      Compared to Mycoplasma pneumonia, Legionnaire’s disease has distinct differences in symptoms and diagnostic methods. It is important to be aware of the potential for Legionnaire’s disease in cases where water tanks or air-conditioning systems may be involved, as early diagnosis and treatment can lead to better outcomes.

    • This question is part of the following fields:

      • Infectious Diseases
      38.1
      Seconds
  • Question 7 - A 38-year-old teacher presents with ongoing fatigue. During a routine blood test, abnormal...

    Correct

    • A 38-year-old teacher presents with ongoing fatigue. During a routine blood test, abnormal liver function tests are detected, prompting a hepatitis screen. The results are as follows:
      Negative for Anti-HAV IgG
      Negative for HBsAg
      Positive for Anti-HBs
      Negative for Anti-HBc
      Positive for Anti-HCV
      What is the most likely interpretation of these results?

      Your Answer: Hepatitis C infection with previous hepatitis B vaccination

      Explanation:

      To determine if a patient still has the hepatitis C virus, a HCV PCR test is necessary as only a small percentage of patients naturally clear the infection. Unfortunately, there is currently no vaccine available for hepatitis C.

      When interpreting hepatitis B serology, the presence of surface antigen (HBsAg) typically indicates acute disease and triggers the production of anti-HBs. If HBsAg is present for more than six months, it suggests chronic disease and is infectious. Anti-HBs indicates immunity from either exposure or vaccination, while anti-HBc suggests previous or current infection. The appearance of IgM anti-HBc during acute or recent hepatitis B infection lasts for about six months. HbeAg is a marker of infectivity as it results from the breakdown of core antigen from infected liver cells.

      Understanding Hepatitis C: Transmission, Complications, and Management

      Hepatitis C is a viral infection that is expected to become a significant public health concern in the UK in the coming years. It is estimated that around 200,000 people in the country are chronically infected with the virus, with intravenous drug users and those who received blood transfusions prior to 1991 being at higher risk. The virus is an RNA flavivirus with an incubation period of 6-9 weeks.

      Transmission of the virus can occur through needle stick injuries, vertical transmission from mother to child (especially if coexistent with HIV), and sexual intercourse (although the risk is low). There is currently no vaccine for hepatitis C. Symptoms of acute infection include a transient rise in serum aminotransferases, jaundice, fatigue, and arthralgia.

      Around 15-45% of patients will clear the virus after an acute infection, while the majority (55-85%) will develop chronic hepatitis C. This can lead to complications such as rheumatological problems, cirrhosis, hepatocellular cancer, and cryoglobulinemia. Treatment for chronic infection depends on the viral genotype and aims for sustained virological response (SVR), defined as undetectable serum HCV RNA six months after the end of therapy. Interferon-based treatments are no longer recommended, with protease inhibitors such as daclatasvir and sofosbuvir or sofosbuvir and simeprevir being used instead. However, these treatments can have side effects such as haemolytic anaemia, cough, flu-like symptoms, depression, and fatigue.

      In conclusion, understanding the transmission, complications, and management of hepatitis C is crucial in addressing this growing public health concern.

    • This question is part of the following fields:

      • Infectious Diseases
      101.1
      Seconds
  • Question 8 - A 76-year-old man, who lives alone, presents to his General Practitioner with an...

    Incorrect

    • A 76-year-old man, who lives alone, presents to his General Practitioner with an extensive itchy, red rash over the trunk, arms and legs, which has been worsening over the preceding three days. He has a past medical history of psoriasis, hypertension and high cholesterol.
      On examination, he has an extensive erythematous rash covering much of his body, with evidence of scaling. He has a normal temperature, a blood pressure (BP) of 110/88 mmHg and a pulse of 101 beats per minute.
      What is the most appropriate management for this patient, given the likely diagnosis?

      Your Answer: Urgent outpatient Dermatology appointment

      Correct Answer: Admit to hospital

      Explanation:

      Management of Erythroderma in an Elderly Patient Living Alone

      Erythroderma is a dermatological emergency that requires urgent treatment. In elderly patients who are frail and live alone, hospital admission is necessary. This is the case for an 86-year-old man with a history of psoriasis who presents with erythroderma. Topical emollients and steroids are key in management, but this patient requires intravenous fluids and close monitoring for infection and dehydration. Oral antibiotics are not indicated unless there are signs of infection. A topical steroid with a vitamin D analogue may be appropriate for psoriasis, but urgent assessment by Dermatology in an inpatient setting is necessary. An outpatient appointment is not appropriate for this patient due to his age and living situation.

    • This question is part of the following fields:

      • Dermatology
      29.9
      Seconds
  • Question 9 - A 30-year-old woman comes to her General Practitioner complaining of fatigue and sudden...

    Incorrect

    • A 30-year-old woman comes to her General Practitioner complaining of fatigue and sudden shortness of breath. An urgent full blood count is performed and the patient is diagnosed with acute lymphoblastic leukemia (ALL).
      What is the most probable first-line treatment option for this patient's leukemia?

      Your Answer: Stem-cell transplant

      Correct Answer: Chemotherapy

      Explanation:

      Treatment Options for Acute Leukaemia: Chemotherapy, Stem-Cell Transplant, Blood Transfusion, Intravenous Immunoglobulins, and Radiotherapy

      Acute leukaemias, such as acute lymphoblastic leukaemia (ALL), are characterized by an increase in primitive undifferentiated blast cells in the bone marrow and blood, leading to marrow failure. The traditional treatment for ALL involves four components: induction, consolidation, maintenance, and central nervous system (CNS) prophylaxis. The first-line therapy for ALL is combination chemotherapy, which aims to eradicate the blast cells. Once remission is induced, maintenance chemotherapy is given to eliminate the disease that cannot be detected under the microscope.

      Stem-cell transplants can be used to treat ALL once remission is induced using chemotherapy. This treatment can be allogeneic (the patient receives stem cells from a matched or partially mismatched related or unrelated donor) or autologous (the patient receives their own stem cells). The goal of a stem-cell transplant is to restore the body’s ability to produce normal blood cells. While it can be a curative treatment for patients with this disease, it is not used as a first-line treatment.

      Blood transfusions are not a treatment for acute leukaemia, but they may be necessary to treat anaemia or platelet deficiency. Patients with leukaemia are at risk of graft-versus-host disease, so they are typically given irradiated blood components. Intravenous immunoglobulins are not used to treat acute leukaemia but may be used prophylactically against infection in patients with hypogammaglobulinaemia due to cancer treatment.

      Radiotherapy is not a first-line treatment for acute leukaemia, but it may be used to treat the brain or spinal cord if the disease has spread there. Total body radiotherapy may also be used before a stem-cell transplant to suppress the immune system and reduce the risk of transplant rejection.

    • This question is part of the following fields:

      • Haematology/Oncology
      23.1
      Seconds
  • Question 10 - A 55-year-old woman presents with haematuria, left flank pain and fatigue. Physical examination...

    Correct

    • A 55-year-old woman presents with haematuria, left flank pain and fatigue. Physical examination reveals a mass in the left flank. Blood tests show hypochromic anaemia.
      What is the most probable diagnosis?

      Your Answer: Renal cell carcinoma (RCC)

      Explanation:

      Common Kidney Disorders and Their Symptoms

      Renal cell carcinoma (RCC), renal tract calculi, autosomal dominant polycystic kidney disease (ADPKD), renal amyloidosis, and reflux nephropathy are some of the common kidney disorders. RCC is the most prevalent type of kidney cancer in adults, and it may remain asymptomatic for most of its course. Renal tract calculi cause sudden onset of severe pain in the flank and radiating inferiorly and anteriorly. ADPKD is a multisystemic disorder characterised by cyst formation and enlargement in the kidney and other organs. Renal amyloidosis is caused by extracellular and/or intracellular deposition of insoluble abnormal amyloid fibrils that alter the normal function of tissues. Reflux nephropathy is characterised by renal damage due to the backflow of urine from the bladder towards the kidneys.

    • This question is part of the following fields:

      • Renal Medicine/Urology
      41
      Seconds
  • Question 11 - A 65-year-old man is scheduled for an elective knee replacement and presents to...

    Incorrect

    • A 65-year-old man is scheduled for an elective knee replacement and presents to the orthopaedic surgery ward. He has osteoarthritis and hypertension and is currently being treated for an episode of giant cell arteritis that occurred four months ago with 20 mg prednisolone daily. This will be his first surgery and he is feeling anxious about the anaesthetic. What is the most crucial medication to prescribe before the operation?

      Your Answer: Bisoprolol

      Correct Answer: Hydrocortisone

      Explanation:

      Patients who are on chronic glucocorticoid therapy, such as prednisolone for the treatment of conditions like giant cell arteritis, may require hydrocortisone supplementation before undergoing surgery. This is because long-term use of glucocorticoids can suppress the hypothalamic-pituitary-adrenal axis, which can lead to inadequate adrenal gland response during times of stress, such as surgery. The amount of hydrocortisone required depends on the type of surgery being performed, with minor procedures under local anesthesia not requiring supplementation. For moderate to major surgeries, 50mg to 100mg of hydrocortisone should be given before induction, followed by additional doses every 8 hours for 24 hours. Diazepam should not be routinely given to control anxiety, and there is no indication that this patient requires additional medications for her hypertension preoperatively. Instead, the patient may benefit from speaking with someone who can provide reassurance about the procedure.

      Preparation for surgery varies depending on whether the patient is undergoing an elective or emergency procedure. For elective cases, it is important to address any medical issues beforehand through a pre-admission clinic. Blood tests, urine analysis, and other diagnostic tests may be necessary depending on the proposed procedure and patient fitness. Risk factors for deep vein thrombosis should also be assessed, and a plan for thromboprophylaxis formulated. Patients are advised to fast from non-clear liquids and food for at least 6 hours before surgery, and those with diabetes require special management to avoid potential complications. Emergency cases require stabilization and resuscitation as needed, and antibiotics may be necessary. Special preparation may also be required for certain procedures, such as vocal cord checks for thyroid surgery or bowel preparation for colorectal cases.

    • This question is part of the following fields:

      • Pharmacology/Therapeutics
      107.8
      Seconds
  • Question 12 - A 26-year-old nulliparous female with a history of recurrent deep vein thrombosis presents...

    Incorrect

    • A 26-year-old nulliparous female with a history of recurrent deep vein thrombosis presents with shortness of breath. The full blood count and clotting screen reveals the following results:

      Hb 12.4 g/dl
      Plt 137
      WBC 7.5 * 109/l
      PT 14 secs
      APTT 46 secs

      What is the probable underlying diagnosis?

      Your Answer: Antithrombin III deficiency

      Correct Answer: Antiphospholipid syndrome

      Explanation:

      Antiphospholipid syndrome is the most probable diagnosis due to the paradoxical occurrence of prolonged APTT and low platelets.

      Antiphospholipid syndrome is a condition that can be acquired and is characterized by a higher risk of both venous and arterial thromboses, recurrent fetal loss, and thrombocytopenia. It can occur as a primary disorder or as a secondary condition to other diseases, with systemic lupus erythematosus being the most common. One important point to remember for exams is that antiphospholipid syndrome can cause a paradoxical increase in the APTT. This is due to an ex-vivo reaction of the lupus anticoagulant autoantibodies with phospholipids involved in the coagulation cascade. Other features of this condition include livedo reticularis, pre-eclampsia, and pulmonary hypertension.

      Antiphospholipid syndrome can also be associated with other autoimmune disorders, lymphoproliferative disorders, and, rarely, phenothiazines. Management of this condition is based on EULAR guidelines. Primary thromboprophylaxis involves low-dose aspirin, while secondary thromboprophylaxis depends on the type of thromboembolic event. Initial venous thromboembolic events require lifelong warfarin with a target INR of 2-3, while recurrent venous thromboembolic events require lifelong warfarin and low-dose aspirin. Arterial thrombosis should be treated with lifelong warfarin with a target INR of 2-3.

    • This question is part of the following fields:

      • Musculoskeletal
      29.5
      Seconds
  • Question 13 - A 61-year-old man presents to the emergency department after experiencing syncope. Upon assessment,...

    Incorrect

    • A 61-year-old man presents to the emergency department after experiencing syncope. Upon assessment, his respiratory rate is 20/min, heart rate is 170/min, and BP is 78/40 mmHg. An ECG reveals a regular tachycardia with a wide complex. The patient is given a peripheral venous line, blood is drawn, and an ECG monitor is attached. What is the next best course of action for managing this patient?

      Your Answer: Amiodarone

      Correct Answer: DC cardioversion

      Explanation:

      Given the patient’s syncope, low BP, and regular wide complex tachycardia, which is likely to be ventricular tachycardia, the appropriate next step is DC cardioversion since the systolic BP is below 90 mmHg. Adenosine is not relevant in this scenario as it is used for managing narrow complex regular tachycardia with no adverse features. Amiodarone is an antiarrhythmic medication that could be used to treat ventricular tachycardia, but it is not appropriate in this case due to the patient’s syncope and low BP.

      Management of Peri-Arrest Tachycardias

      The Resuscitation Council (UK) guidelines for the management of peri-arrest tachycardias have been simplified in the 2015 update. The previous separate algorithms for broad-complex tachycardia, narrow complex tachycardia, and atrial fibrillation have been replaced by a unified treatment algorithm. After basic ABC assessment, patients are classified as stable or unstable based on the presence of adverse signs such as hypotension, pallor, sweating, confusion, or impaired consciousness. If any of these signs are present, synchronised DC shocks should be given, up to a maximum of three shocks.

      The treatment following this is based on whether the QRS complex is narrow or broad and whether the rhythm is regular or irregular. For broad-complex tachycardia, a loading dose of amiodarone followed by a 24-hour infusion is given if the rhythm is regular. If the rhythm is irregular, expert help should be sought as it could be due to atrial fibrillation with bundle branch block, atrial fibrillation with ventricular pre-excitation, or torsade de pointes.

      For narrow-complex tachycardia, vagal manoeuvres followed by IV adenosine are given if the rhythm is regular. If unsuccessful, atrial flutter is considered, and rate control is achieved with beta-blockers. If the rhythm is irregular, it is likely due to atrial fibrillation, and electrical or chemical cardioversion is considered if the onset is less than 48 hours. Beta-blockers are usually the first-line treatment for rate control unless contraindicated. The full treatment algorithm can be found on the Resuscitation Council website.

    • This question is part of the following fields:

      • Cardiovascular
      121.8
      Seconds
  • Question 14 - What is the pathophysiological mechanism of hyperacute allograft rejection, which is one of...

    Incorrect

    • What is the pathophysiological mechanism of hyperacute allograft rejection, which is one of the significant risks associated with transplantation and can potentially endanger the patient's life?

      Your Answer: Interstitial fibrosis

      Correct Answer: Class I HLA antibody activation, granulocyte adhesion and thrombosis

      Explanation:

      Misconceptions about the Pathophysiology of Allograft Rejection

      There are several misconceptions about the pathophysiology of allograft rejection. One of them is that hyper-acute allograft rejection is solely caused by class I HLA antibody activation, granulocyte adhesion, and thrombosis. While these factors do play a role, the ultimate result of hyper-acute rejection is thrombosis of the vessels and graft ischaemia, which presents itself as graft swelling once perfusion is reinstated.

      Another misconception is that donor MHC I antigens react with host CD8 resulting in direct cytotoxic damage, which is a sequence in the pathophysiology of acute rejection response, not hyper-acute rejection.

      Class II HLA antibodies are often thought to be the primary source of activation of the coagulation cascade, but this is not the case. Monocytes are also not activated in this process.

      Interstitial fibrosis is often thought to be a mechanism of acute rejection, but it is actually the end-stage mechanism of chronic graft rejection.

      Lastly, lymphocyte, killer T-cell, and cytokine activation are often thought to be part of the mechanism of hyper-acute allograft rejection, but they are actually part of the mechanism of action in acute allograft rejection.

      It is important to have a clear understanding of the pathophysiology of allograft rejection to properly diagnose and treat patients.

    • This question is part of the following fields:

      • Immunology/Allergy
      29.3
      Seconds
  • Question 15 - A 28-year-old man presents to his General Practitioner with pallor, fatigue, weakness, palpitations...

    Incorrect

    • A 28-year-old man presents to his General Practitioner with pallor, fatigue, weakness, palpitations and dyspnoea on exertion. His symptoms have come on quickly over the last three weeks. A full blood count is ordered and is suggestive of acute lymphoblastic myeloid leukaemia (AML).
      What Is the next most appropriate investigation for this patient?

      Your Answer: Lumbar puncture

      Correct Answer: Bone marrow biopsy

      Explanation:

      Diagnostic Tests for Acute Myeloid Leukaemia

      Acute myeloid leukaemia (AML) is a type of blood cancer that affects the bone marrow. To diagnose AML, several diagnostic tests may be performed. The most common tests include a bone marrow biopsy, ultrasound scan of the abdomen, chest X-ray, computerised tomography (CT) scan of chest, abdomen and pelvis, and lumbar puncture.

      Bone Marrow Biopsy: This is the most important test for diagnosing AML. It involves extracting cells from the bone marrow and examining them under a microscope. AML is characterised by the presence of primitive myeloblasts and Auer rods in the bone marrow.

      Ultrasound Scan of the Abdomen: This test is used to check for enlarged lymph nodes in the abdomen or spleen. If any enlarged lymph nodes are found, they may be biopsied to determine the extent of the leukaemia.

      Chest X-ray: This test is used to check for enlarged lymph nodes in the mediastinum.

      CT Scan of Chest, Abdomen and Pelvis: This test is not usually used as a first-line investigation for AML. However, once the diagnosis is confirmed, a CT scan may be used to assess for the presence of enlarged lymph nodes or for planning purposes if radiotherapy is going to form part of the treatment.

      Lumbar Puncture: This test is not usually used in the diagnosis of AML unless it is suspected that the leukaemia cells are also present in the cerebrospinal fluid.

      In conclusion, a bone marrow biopsy is the most important test for diagnosing AML. Other tests may be used to determine the extent of the leukaemia or for planning purposes if radiotherapy is going to form part of the treatment.

    • This question is part of the following fields:

      • Haematology/Oncology
      29.9
      Seconds
  • Question 16 - A 62-year-old woman is referred to the medical team from the orthopaedic ward....

    Incorrect

    • A 62-year-old woman is referred to the medical team from the orthopaedic ward. She underwent a right total-hip replacement six days ago. She is known to have mild COPD and is on regular inhaled steroids and a short-acting b2 agonist. She now complains of left-sided chest pain and is also dyspnoeic. Your clinical diagnosis is pulmonary embolism (PE).
      Which of the following is usually NOT a feature of PE in this patient?

      Your Answer: New-onset atrial fibrillation

      Correct Answer: Bradycardia

      Explanation:

      Symptoms and Signs of Pulmonary Embolism

      Pulmonary embolism (PE) is a serious condition that can be life-threatening. It is important to recognize the symptoms and signs of PE to ensure prompt diagnosis and treatment. Here are some of the common symptoms and signs of PE:

      Dyspnoea: This is the most common symptom of PE, present in about 75% of patients. Dyspnoea can occur at rest or on exertion.

      Tachypnoea: This is defined as a respiratory rate of more than 20 breaths per minute and is present in about 55% of patients with PE.

      Tachycardia: This is present in about 25% of cases of PE. It is important to note that a transition from tachycardia to bradycardia may suggest the development of right ventricular strain and potentially cardiogenic shock.

      New-onset atrial fibrillation: This is a less common feature of PE, occurring in less than 10% of cases. Atrial flutter, atrial fibrillation, and premature beats should alert the doctor to possible right-heart strain.

      Bradycardia: This is not a classic feature of PE. However, if a patient with PE transitions from tachycardia to bradycardia, it may suggest the development of right ventricular strain and potentially cardiogenic shock.

      In summary, dyspnoea, tachypnoea, tachycardia, and new-onset atrial fibrillation are some of the common symptoms and signs of PE. It is important to have a high level of suspicion for PE, especially in high-risk patients, to ensure prompt diagnosis and treatment.

    • This question is part of the following fields:

      • Respiratory Medicine
      167.5
      Seconds
  • Question 17 - You are asked to assess a 76-year-old man on the surgical ward. The...

    Correct

    • You are asked to assess a 76-year-old man on the surgical ward. The nursing staff has documented his blood glucose level at 2.4mmol/L. He is recuperating after undergoing surgery for a hip fracture. He has a medical history of hypertension, diabetes, and chronic kidney disease.

      During your examination, he appears somewhat restless but coherent enough to respond to your inquiries. His heart rate is 78 bpm, and his blood pressure is 134/82 mmHg.

      What would be the most appropriate initial treatment?

      Your Answer: Glucogel, orally

      Explanation:

      Dextrose IV is not the recommended treatment for correcting hypoglycemia. If the patient is conscious, a fast-acting glucose liquid should be given. However, if the patient is unconscious or unable to swallow, subcutaneous or intramuscular injection of glucagon may be necessary. While a sandwich can be helpful after treating the hypoglycemic episode, it is not a quick-acting carbohydrate and should not be used in the acute phase.

      Understanding Hypoglycaemia: Causes, Symptoms, and Management

      Hypoglycaemia is a condition characterized by low blood sugar levels, which can lead to a range of symptoms and complications. There are several possible causes of hypoglycaemia, including insulinoma, self-administration of insulin or sulphonylureas, liver failure, Addison’s disease, and alcohol consumption. The physiological response to hypoglycaemia involves hormonal and sympathoadrenal responses, which can result in a range of symptoms such as sweating, shaking, hunger, weakness, confusion, and even convulsions or coma in severe cases.

      It is important to note that blood glucose levels and the severity of symptoms are not always correlated, especially in patients with diabetes. Blood glucose concentrations below 3.3 mmol/L can cause autonomic symptoms, while concentrations below 2.8 mmol/L can cause neuroglycopenic symptoms. Management of hypoglycaemia depends on the severity of the symptoms and the setting in which it occurs. In the community, oral glucose or quick-acting carbohydrates may be given, while in a hospital setting, subcutaneous or intramuscular injection of glucagon or intravenous glucose solution may be necessary.

      In summary, hypoglycaemia is a serious condition that requires prompt recognition and management to prevent complications. Understanding the causes, symptoms, and appropriate management strategies can help individuals with diabetes and healthcare professionals to effectively manage this condition.

    • This question is part of the following fields:

      • Endocrinology/Metabolic Disease
      34.5
      Seconds
  • Question 18 - A 56-year-old man presents to his GP complaining of numbness and tingling in...

    Incorrect

    • A 56-year-old man presents to his GP complaining of numbness and tingling in his thumb, middle, and index fingers for the past 8 months. This is beginning to interfere with his work as a financial analyst. He has a history of hypothyroidism for which he takes 75 micrograms of thyroxine daily. Other than that, his medical history is unremarkable. Which nerves are likely affected in this condition?

      Your Answer: Axillary nerve

      Correct Answer: Median nerve

      Explanation:

      To identify the affected nerve, it is crucial to accurately diagnose the underlying condition. The patient’s symptoms, such as numbness and tingling in the thumb and middle finger (and possibly the radial half of the ring finger), suggest carpal tunnel syndrome. Additionally, the patient’s occupation involving computer use and hypothyroidism are risk factors for this condition. Carpal tunnel syndrome occurs when the median nerve is compressed at the wrist within the carpal tunnel.

      Understanding Carpal Tunnel Syndrome

      Carpal tunnel syndrome is a condition that occurs when the median nerve in the carpal tunnel is compressed. Patients with this condition typically experience pain or pins and needles in their thumb, index, and middle fingers. In some cases, the symptoms may even ascend proximally. Patients often shake their hand to obtain relief, especially at night.

      During an examination, doctors may observe weakness of thumb abduction and wasting of the thenar eminence (not the hypothenar). Tapping on the affected area may cause paraesthesia, which is known as Tinel’s sign. Flexion of the wrist may also cause symptoms, which is known as Phalen’s sign.

      Carpal tunnel syndrome can be caused by a variety of factors, including idiopathic reasons, pregnancy, oedema (such as heart failure), lunate fracture, and rheumatoid arthritis. Electrophysiology tests may show prolongation of the action potential in both motor and sensory nerves.

      Treatment for carpal tunnel syndrome may include a 6-week trial of conservative treatments, such as corticosteroid injections and wrist splints at night. If symptoms persist or are severe, surgical decompression (flexor retinaculum division) may be necessary.

    • This question is part of the following fields:

      • Musculoskeletal
      29.5
      Seconds
  • Question 19 - A 63-year-old woman who is undergoing treatment for bladder cancer presents to the...

    Incorrect

    • A 63-year-old woman who is undergoing treatment for bladder cancer presents to the Emergency Department because she has noticed that the urine in her catheter is blood-stained.
      On examination, the urine is pink in colour. Her observations are normal.
      What would be the next most appropriate step in this patient’s management?
      Select the SINGLE most likely option.

      Your Answer: Flush the urinary catheter using normal saline

      Correct Answer: Arrange a full blood count

      Explanation:

      Management of a Patient with Suspected Bladder Tumour and Bleeding

      When managing a patient with suspected bladder tumour and bleeding, it is important to consider the appropriate steps to take. Here are some options and their potential outcomes:

      1. Arrange a full blood count: This test can help assess the degree of blood loss and guide the urgency of treatment.

      2. Transfuse two units of O-negative blood: While patients with bladder tumours can bleed extensively, it is important to first assess the need for transfusion through a full blood count.

      3. Flush the urinary catheter using normal saline: This step is appropriate for a blocked catheter, but not for a patient with active bleeding.

      4. Remove the urinary catheter: This step can cause blood clots and urinary retention, and is not indicated for this patient.

      5. Transfer to theatre for resection of tumour: While this may be necessary in cases of catastrophic bleeding, it is important to first assess the patient’s stability and obtain blood tests before planning definitive management.

      In summary, careful consideration of the appropriate steps is crucial in managing a patient with suspected bladder tumour and bleeding.

    • This question is part of the following fields:

      • Renal Medicine/Urology
      52.2
      Seconds
  • Question 20 - A 32-year-old man has had severe left-sided facial pain with purulent nasal discharge...

    Incorrect

    • A 32-year-old man has had severe left-sided facial pain with purulent nasal discharge for ten days. He describes how he initially felt 'okay' with milder symptoms, but noticed a sudden deterioration in his symptoms a few days ago.
      Which of the following treatments would be the treatment of choice?

      Your Answer: Chlorpheniramine

      Correct Answer: Phenoxymethylpenicillin

      Explanation:

      Treatment Options for Acute Sinusitis: Antibiotics, Decongestants, and Antihistamines

      Acute bacterial sinusitis is a common condition that can cause severe symptoms such as discolored or purulent discharge, severe localized pain, and fever. Antibiotics are prescribed only if the patient has a co-morbidity or if acute bacterial sinusitis is clinically suspected. The antibiotics of choice include amoxicillin, phenoxymethylpenicillin, doxycycline, or erythromycin. Second-line treatments include co-amoxiclav and azithromycin.

      Decongestants such as ephedrine can be used to relieve nasal congestion, but they should not be used for more than seven days to avoid rebound congestion. Antihistamines such as chlorpheniramine are not recommended unless there is a coexisting allergic rhinitis.

      It is important to note that flucloxacillin and metronidazole are not the antibiotics of choice for acute sinusitis. Doxycycline or erythromycin are acceptable alternatives. Treatment should be used only for persistent symptoms or purulent nasal discharge lasting at least 7 days, or if the symptoms are severe.

    • This question is part of the following fields:

      • ENT
      31.6
      Seconds
  • Question 21 - A 25-year-old woman presents to her General Practitioner with a complaint of difficulty...

    Incorrect

    • A 25-year-old woman presents to her General Practitioner with a complaint of difficulty sleeping due to a blocked nose at night. She uses inhalers regularly for wheezing during cold weather and experiences a cough at night. What is the most common complication of her underlying diagnosis that she may be experiencing?

      Your Answer: Paracetamol sensitivity

      Correct Answer: Nasal Polyps

      Explanation:

      Understanding Nasal Polyps and Associated Conditions

      Nasal polyps are a common condition that can cause a blocked nose, interrupting sleep and wheezing upon exertion. They are often associated with asthma, which is found along the atopic spectrum of diseases. Other conditions commonly associated with nasal polyps include allergic rhinitis and sinusitis.

      Allergic fungal sinusitis is another condition that can cause nasal polyps, but it is more commonly found in warmer climates and is not the most common cause in the United Kingdom. Paracetamol sensitivity is not associated with nasal polyps, but aspirin sensitivity is and can be part of Samter’s triad if the patient also has asthma.

      Chronic obstructive pulmonary disease (COPD) is not associated with nasal polyps, and it would be rare to see in a young patient unless there was underlying alpha-1 anti-trypsin disease. COPD is most commonly seen in long-term smokers and presents with symptoms such as shortness of breath and a longstanding cough.

      Diabetes mellitus is not associated with nasal polyps and would present with other symptoms such as polyuria, polydipsia, and fatigue. Understanding the conditions associated with nasal polyps can help with diagnosis and treatment.

    • This question is part of the following fields:

      • ENT
      28.2
      Seconds
  • Question 22 - A 6-year-old girl is presented with a worsening of her asthma symptoms. Upon...

    Incorrect

    • A 6-year-old girl is presented with a worsening of her asthma symptoms. Upon examination, she exhibits bilateral expiratory wheezing, but there are no indications of respiratory distress. Her respiratory rate is 24 breaths per minute, and her PEF is approximately 50% of normal. What is the best course of action regarding steroid treatment?

      Your Answer: Give a stat dose or oral dexamethasone

      Correct Answer: Oral prednisolone for 3 days

      Explanation:

      According to the 2016 guidelines of the British Thoracic Society, children should be given a specific dose of steroids based on their age. For children under 2 years, the dose should be 10 mg of prednisolone, for those aged 2-5 years, it should be 20 mg, and for those over 5 years, it should be 30-40 mg. Children who are already taking maintenance steroid tablets should receive a maximum dose of 60 mg or 2 mg/kg of prednisolone. If a child vomits after taking the medication, the dose should be repeated, and if they are unable to retain the medication orally, intravenous steroids should be considered. The duration of treatment should be tailored to the number of days required for recovery, and a course of steroids exceeding 14 days does not require tapering.

      Managing Acute Asthma Attacks in Children

      When it comes to managing acute asthma attacks in children, it is important to assess the severity of the attack and take appropriate action. For children between the ages of 2 and 5, those with severe or life-threatening asthma should be immediately transferred to the hospital. For moderate attacks, children should have a SpO2 level above 92% and no clinical features of severe asthma. However, for severe attacks, children may have a SpO2 level below 92%, be too breathless to talk or feed, have a heart rate above 140/min, and use accessory neck muscles. For life-threatening attacks, children may have a SpO2 level below 92%, a silent chest, poor respiratory effort, agitation, altered consciousness, and cyanosis.

      For children over the age of 5, it is recommended to attempt to measure PEF in all cases. For moderate attacks, children should have a SpO2 level above 92%, a PEF level above 50% best or predicted, and no clinical features of severe asthma. For severe attacks, children may have a SpO2 level below 92%, a PEF level between 33-50% best or predicted, and be unable to complete sentences in one breath or too breathless to talk or feed. For life-threatening attacks, children may have a SpO2 level below 92%, a PEF level below 33% best or predicted, a silent chest, poor respiratory effort, altered consciousness, and cyanosis.

      For children with mild to moderate acute asthma, bronchodilator therapy should be given via a beta-2 agonist and spacer (or close-fitting mask for children under 3 years old). One puff should be given every 30-60 seconds up to a maximum of 10 puffs. If symptoms are not controlled, the beta-2 agonist should be repeated and the child should be referred to the hospital. Steroid therapy should also be given to all children with an asthma exacerbation for 3-5 days, with the usual prednisolone dose varying based on age and weight.

    • This question is part of the following fields:

      • Paediatrics
      17.8
      Seconds
  • Question 23 - A 28-year-old woman visits her doctor after missing her progestogen-only pill, Noriday, this...

    Incorrect

    • A 28-year-old woman visits her doctor after missing her progestogen-only pill, Noriday, this morning. She usually takes it at 9am, but it's now 12:30 pm. What guidance should the doctor provide?

      Your Answer: Take missed pill as soon as possible and no further action needed

      Correct Answer: Take missed pill as soon as possible and advise condom use until pill taking re-established for 48 hours

      Explanation:

      Progestogen Only Pill: What to Do When You Miss a Pill

      The progestogen only pill (POP) has simpler rules for missed pills compared to the combined oral contraceptive pill. It is important to note that the rules for the two types of pills should not be confused. The traditional POPs (Micronor, Noriday, Nogeston, Femulen) and Cerazette (desogestrel) have the following guidelines for missed pills:

      – If the pill is less than 3 hours late, no action is required, and you can continue taking the pill as normal.
      – If the pill is more than 3 hours late (i.e., more than 27 hours since the last pill was taken), action is needed.
      – If the pill is less than 12 hours late, no action is required, and you can continue taking the pill as normal.
      – If the pill is more than 12 hours late (i.e., more than 36 hours since the last pill was taken), action is needed.

    • This question is part of the following fields:

      • Reproductive Medicine
      119.4
      Seconds
  • Question 24 - An increase in alkaline phosphatase can be attributed to any of the following...

    Incorrect

    • An increase in alkaline phosphatase can be attributed to any of the following conditions except?

      Your Answer: Paget's disease

      Correct Answer: Hypoparathyroidism

      Explanation:

      Understanding Alkaline Phosphatase and Its Causes

      Alkaline phosphatase (ALP) is an enzyme found in various tissues throughout the body, including the liver, bones, and intestines. When the levels of ALP in the blood are elevated, it can indicate a potential health issue. The causes of raised ALP can be divided into two categories based on the calcium level in the blood.

      If both ALP and calcium levels are high, it may indicate bone metastases, hyperparathyroidism, osteomalacia, or renal failure. On the other hand, if ALP is high but calcium is low, it may be due to cholestasis, hepatitis, fatty liver, neoplasia, Paget’s disease, or physiological factors such as pregnancy, growing children, or healing fractures.

      It is important to note that elevated ALP levels do not necessarily indicate a specific condition, but rather serve as a signal for further investigation.

    • This question is part of the following fields:

      • Endocrinology/Metabolic Disease
      15.6
      Seconds
  • Question 25 - Sophie, a 23-years old woman, visits her doctor complaining of frequent nosebleeds and...

    Correct

    • Sophie, a 23-years old woman, visits her doctor complaining of frequent nosebleeds and unexplained bruising on her arms and legs. She mentions that her mother has also experienced similar issues but never sought medical attention. As a result, the doctor orders several blood tests to determine the most probable diagnosis.
      What kind of results would be anticipated based on the likely diagnosis?

      Your Answer: Prolonged bleed time, normal platelet count, prolonged APTT

      Explanation:

      Von Willebrand’s disease is a common genetic bleeding disorder that is inherited in an autosomal dominant manner. It behaves like a platelet disorder because von Willebrand Factor (vWF) is necessary for platelet adhesion to the damaged endothelium. As a result, patients experience mucocutaneous bleeding after minor injuries, such as nosebleeds and bruising. Bleeding time is prolonged because they cannot adhere to form the platelet plug, but the platelet count itself is normal. APTT is also prolonged because vWF acts as a carrier molecule for factor VIII, which is measured by APTT. This is also observed in haemophilia A, but to a greater extent.

      Understanding Von Willebrand’s Disease

      Von Willebrand’s disease is a common inherited bleeding disorder that is usually passed down in an autosomal dominant manner. It behaves like a platelet disorder, with symptoms such as nosebleeds and heavy menstrual bleeding being common, while joint and muscle bleeding are rare. The disease is caused by a deficiency or abnormality in von Willebrand factor, a large glycoprotein that promotes platelet adhesion to damaged endothelium and acts as a carrier molecule for factor VIII.

      There are three types of Von Willebrand’s disease. Type 1 is the most common and is characterized by a partial reduction in von Willebrand factor. Type 2 is further divided into four subtypes, each with a different abnormality in the von Willebrand factor. Type 3 is the most severe form and is caused by a total lack of von Willebrand factor, inherited in an autosomal recessive manner.

      Diagnosis of Von Willebrand’s disease involves tests such as a prolonged bleeding time, APTT, factor VIII levels, and platelet aggregation with ristocetin. Management options include tranexamic acid for mild bleeding, desmopressin to raise levels of von Willebrand factor, and factor VIII concentrate. While there is no clear correlation between symptomatic presentation and type of Von Willebrand’s disease, common themes among patients include excessive mucocutaneous bleeding, bruising in the absence of trauma, and menorrhagia in females.

    • This question is part of the following fields:

      • Haematology/Oncology
      24.3
      Seconds
  • Question 26 - An 80-year-old woman arrives at the emergency department with recent onset of left-sided...

    Incorrect

    • An 80-year-old woman arrives at the emergency department with recent onset of left-sided weakness. She has a medical history of atrial fibrillation and is currently taking warfarin, with an INR of 2.5 upon admission. A CT scan of her head reveals an intracerebral haemorrhage in the left basal ganglia. What steps should be taken regarding her warfarin medication?

      Your Answer: Stop the warfarin and give 5mg of vitamin K orally

      Correct Answer: Stop the warfarin, give 5mg of vitamin K intravenously and give prothrombin complex concentrate intravenously

      Explanation:

      In the event of major bleeding, such as an intracranial haemorrhage, it is crucial to discontinue warfarin and administer intravenous vitamin K 5mg and prothrombin complex concentrate (PCC). PCC is a solution that contains coagulation factors II, VII, IX and X, specifically designed to reverse the effects of warfarin. It is recommended over fresh frozen plasma (FFP) for warfarin reversal.

      Management of High INR in Patients Taking Warfarin

      When managing patients taking warfarin who have a high INR, the approach will depend on whether there is bleeding or not. In cases of major bleeding, warfarin should be stopped immediately and intravenous vitamin K 5mg should be given along with prothrombin complex concentrate. If this is not available, fresh frozen plasma can be used instead. For minor bleeding, warfarin should also be stopped and intravenous vitamin K 1-3mg should be given. If the INR remains high after 24 hours, the dose of vitamin K can be repeated. Warfarin can be restarted once the INR is below 5.0.

      If there is no bleeding, warfarin should be stopped and vitamin K 1-5mg can be given orally using the intravenous preparation. The dose of vitamin K can be repeated if the INR remains high after 24 hours. Warfarin can be restarted once the INR is below 5.0. In cases where the INR is between 5.0-8.0, warfarin should be stopped for minor bleeding and intravenous vitamin K 1-3mg should be given. Warfarin can be restarted once the INR is below 5.0. For patients with no bleeding and an INR between 5.0-8.0, one or two doses of warfarin can be withheld and the subsequent maintenance dose can be reduced.

      It is important to note that in cases of intracranial hemorrhage, prothrombin complex concentrate should be considered instead of fresh frozen plasma as it can take time to defrost. These guidelines are based on the recommendations of the British Committee for Standards in Haematology and the British National Formulary.

    • This question is part of the following fields:

      • Neurology
      20.5
      Seconds
  • Question 27 - A 36-year-old woman has been diagnosed with pertussis. She came to the doctor's...

    Incorrect

    • A 36-year-old woman has been diagnosed with pertussis. She came to the doctor's office after a child at her workplace daycare tested positive for whooping cough. She has been experiencing an on-and-off cough with occasional vomiting for the past 18 days. Assuming the patient has no allergies, what is the best course of treatment for this diagnosis?

      Your Answer: Co-amoxiclav

      Correct Answer: Azithromycin

      Explanation:

      Azithromycin or clarithromycin are recommended as first-line antibiotics for non-pregnant adults with whooping cough if the cough onset is within 21 days. Erythromycin can be used for pregnant adults. Co-amoxiclav and doxycycline are not recommended, and co-trimoxazole can be used off-label if macrolides are contraindicated or not tolerated. Antibiotics are preferred over supportive treatment within 21 days of presentation.

      Whooping Cough: Causes, Symptoms, Diagnosis, and Management

      Whooping cough, also known as pertussis, is a contagious disease caused by the bacterium Bordetella pertussis. It is commonly found in children, with around 1,000 cases reported annually in the UK. The disease is characterized by a persistent cough that can last up to 100 days, hence the name cough of 100 days.

      Infants are particularly vulnerable to whooping cough, which is why routine immunization is recommended at 2, 3, 4 months, and 3-5 years. However, neither infection nor immunization provides lifelong protection, and adolescents and adults may still develop the disease.

      Whooping cough has three phases: the catarrhal phase, the paroxysmal phase, and the convalescent phase. The catarrhal phase lasts around 1-2 weeks and presents symptoms similar to a viral upper respiratory tract infection. The paroxysmal phase is characterized by a severe cough that worsens at night and after feeding, and may be accompanied by vomiting and central cyanosis. The convalescent phase is when the cough subsides over weeks to months.

      To diagnose whooping cough, a person must have an acute cough that has lasted for 14 days or more without another apparent cause, and have one or more of the following features: paroxysmal cough, inspiratory whoop, post-tussive vomiting, or undiagnosed apnoeic attacks in young infants. A nasal swab culture for Bordetella pertussis is used to confirm the diagnosis, although PCR and serology are increasingly used.

      Infants under 6 months with suspected pertussis should be admitted, and in the UK, pertussis is a notifiable disease. An oral macrolide, such as clarithromycin, azithromycin, or erythromycin, is indicated if the onset of the cough is within the previous 21 days to eradicate the organism and reduce the spread. Household contacts should be offered antibiotic prophylaxis, although antibiotic therapy has not been shown to alter the course of the illness. School exclusion is recommended for 48 hours after commencing antibiotics or 21 days from onset of symptoms if no antibiotics are given.

      Complications of whooping cough include subconjunctival haemorrhage, pneumonia, bronchiectasis, and

    • This question is part of the following fields:

      • Paediatrics
      229
      Seconds
  • Question 28 - A 7-year-old girl is brought in for evaluation. Her medical records indicate that...

    Incorrect

    • A 7-year-old girl is brought in for evaluation. Her medical records indicate that she has previously received treatment for constipation, but is generally healthy. The mother reports that the child is currently passing only one hard stool every 3-4 days, which resembles 'rabbit droppings'. There is no history of overflow soiling or diarrhea. The abdominal examination is normal. What is the most suitable initial intervention?

      Your Answer: Advice on diet/fluid intake + refer to local Constipation Nurse for support

      Correct Answer: Advice on diet/fluid intake + Movicol Paediatric Plain

      Explanation:

      Understanding and Managing Constipation in Children

      Constipation is a common problem in children, with the frequency of bowel movements decreasing as they age. The National Institute for Health and Care Excellence (NICE) has provided guidelines for the diagnosis and management of constipation in children. A diagnosis of constipation is suggested by two or more symptoms, including infrequent bowel movements, hard stools, and associated distress or pain. Most cases of constipation in children are idiopathic, but other causes such as dehydration, low-fiber diet, and medication use should be considered and excluded.

      If a diagnosis of constipation is made, NICE recommends assessing for faecal impaction before starting treatment. Treatment for faecal impaction involves using polyethylene glycol 3350 + electrolytes (Movicol Paediatric Plain) as the first-line treatment, with the addition of a stimulant laxative if necessary. Maintenance therapy involves a similar regime, with adjustments to the starting dose and the addition of other laxatives if necessary.

      It is important to note that dietary interventions alone are not recommended as first-line treatment, although ensuring adequate fluid and fiber intake is important. Regular toileting and non-punitive behavioral interventions should also be considered. For infants, extra water, gentle abdominal massage, and bicycling the legs can be helpful for constipation. If these measures are not effective, lactulose can be added.

      In summary, constipation in children can be managed effectively with a combination of medication, dietary adjustments, and behavioral interventions. It is important to follow NICE guidelines and consider the individual needs of each child.

    • This question is part of the following fields:

      • Paediatrics
      12.3
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  • Question 29 - As a foundation doctor in general practice, you examine a fifty-five-year-old patient during...

    Incorrect

    • As a foundation doctor in general practice, you examine a fifty-five-year-old patient during an outpatient clinic visit. The patient complains of weight loss and a painless, enlarging sore on the penis that has been present for more than two months. What is the probable diagnosis?

      Your Answer: Adenocarcinoma

      Correct Answer: Squamous cell carcinoma

      Explanation:

      Penile cancer can manifest as an ulcer. The most prevalent form of penile cancer is squamous cell carcinoma, not adenocarcinoma. While stress ulcers cause abdominal pain and bleeding, they are not responsible for this presentation. Herpes outbreaks can be triggered by significant stress, but they typically cause painful lesions that heal within a week. Syphilis, caused by Treponema pallidum, can result in a painless ulcer called a chancre, but it does not cause weight loss, and the lesion usually resolves within six to eight weeks, even without treatment.

      Understanding Penile Cancer: Causes, Symptoms, and Treatment

      Penile cancer is a rare type of cancer that is typically characterized by squamous cell carcinoma. It is a condition that affects the penis and can cause a variety of symptoms, including penile lump and ulceration. There are several risk factors associated with penile cancer, including human immunodeficiency virus infection, human papillomavirus virus infection, genital warts, poor hygiene, phimosis, paraphimosis, balanitis, and age over 50.

      When it comes to treating penile cancer, there are several options available, including radiotherapy, chemotherapy, and surgery. The prognosis for penile cancer can vary depending on the stage of the cancer and the treatment options chosen. However, the overall survival rate for penile cancer is approximately 50% at 5 years.

    • This question is part of the following fields:

      • Reproductive Medicine
      23.8
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  • Question 30 - You encounter the mother of a 9-month-old baby who was born premature (at...

    Incorrect

    • You encounter the mother of a 9-month-old baby who was born premature (at 30 weeks) and has recently been discharged from hospital after being admitted for 'breathing difficulties'. During the hospital stay, the baby received an injection called palivizumab, but the mother cannot remember the purpose of this medication. Can you explain the medication and its indication?

      Your Answer:

      Correct Answer: Monoclonal antibody used to prevent respiratory syncytial virus (RSV)

      Explanation:

      To prevent respiratory syncytial virus (RSV) in children who are at a higher risk of severe disease, palivizumab, a monoclonal antibody, is administered. Infants who are premature, have lung or heart abnormalities, or are immunocompromised are among those at risk of developing RSV.

      Bronchiolitis is a condition where the bronchioles become inflamed, and it is most commonly caused by respiratory syncytial virus (RSV). This virus is responsible for 75-80% of cases, with other causes including mycoplasma and adenoviruses. Bronchiolitis is most prevalent in infants under one year old, with 90% of cases occurring in those aged 1-9 months. The condition is more serious in premature babies, those with congenital heart disease or cystic fibrosis. Symptoms include coryzal symptoms, dry cough, increasing breathlessness, and wheezing. Hospital admission is often necessary due to feeding difficulties associated with increasing dyspnoea.

      Immediate referral is recommended if the child has apnoea, looks seriously unwell, has severe respiratory distress, central cyanosis, or persistent oxygen saturation of less than 92% when breathing air. Clinicians should consider referral if the child has a respiratory rate of over 60 breaths/minute, difficulty with breastfeeding or inadequate oral fluid intake, or clinical dehydration. Immunofluorescence of nasopharyngeal secretions may show RSV, and management is largely supportive. Humidified oxygen is given via a head box if oxygen saturations are persistently low, and nasogastric feeding may be necessary if children cannot take enough fluid/feed by mouth. Suction may also be used for excessive upper airway secretions. NICE released guidelines on bronchiolitis in 2015 for more information.

    • This question is part of the following fields:

      • Paediatrics
      0
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SESSION STATS - PERFORMANCE PER SPECIALTY

Gastroenterology/Nutrition (1/1) 100%
Cardiovascular (1/2) 50%
Neurology (1/2) 50%
Endocrinology/Metabolic Disease (0/3) 0%
Infectious Diseases (0/2) 0%
Dermatology (1/1) 100%
Haematology/Oncology (2/3) 67%
Renal Medicine/Urology (1/2) 50%
Pharmacology/Therapeutics (0/1) 0%
Musculoskeletal (0/2) 0%
Immunology/Allergy (0/1) 0%
Respiratory Medicine (1/1) 100%
ENT (1/2) 50%
Paediatrics (2/4) 50%
Reproductive Medicine (2/2) 100%
Passmed