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  • Question 1 - A 32-year-old woman comes in seeking contraceptive advice. She is currently 48 hours...

    Correct

    • A 32-year-old woman comes in seeking contraceptive advice. She is currently 48 hours behind schedule in starting the first pill of her new packet. She took all of her pills consistently last month before her pill-free interval. She engaged in unprotected sexual intercourse last night and wants to know the best course of action.
      What is the MOST suitable advice to provide her?

      Your Answer: She should take the most recent missed pill, the remaining pills should be continued at the usual time, but no emergency contraception is required

      Explanation:

      If you have missed one pill, which means it has been 48-72 hours since you took the last pill in your current packet or you started the first pill in a new packet 24-48 hours late, you need to take the missed pill as soon as you remember. Make sure to continue taking the remaining pills at your usual time. Emergency contraception is generally not necessary in this situation, but it may be worth considering if you have missed pills earlier in the packet or during the last week of the previous packet.

    • This question is part of the following fields:

      • Sexual Health
      25.1
      Seconds
  • Question 2 - You evaluate a 9-year-old boy with a high temperature and a persistent, forceful...

    Incorrect

    • You evaluate a 9-year-old boy with a high temperature and a persistent, forceful cough for the past two weeks. A nasopharyngeal swab has been collected and has tested positive for Bordetella pertussis. You initiate a course of antibiotics. The parents of the child would like to know the duration for which he should stay home from school after starting antibiotic treatment for this infection.

      Your Answer: 5 days

      Correct Answer: 48 hours

      Explanation:

      Whooping cough, also known as pertussis, is a respiratory infection caused by the bacteria Bordetella pertussis. It is transmitted through respiratory droplets and has an incubation period of about 7-21 days. This highly contagious disease can be passed on to around 90% of close household contacts.

      To prevent the spread of whooping cough, Public Health England advises that children with the illness should stay away from school, nursery, or childminders for 48 hours after starting antibiotic treatment. If no antibiotic treatment is given, they should be kept away for 21 days from the onset of the illness. It’s important to note that even after treatment, non-infectious coughing may persist for several weeks.

      For more information on how to control infections in schools and other childcare settings, you can refer to the guidance provided by Public Health England.

    • This question is part of the following fields:

      • Respiratory
      48.4
      Seconds
  • Question 3 - You ask your consultant to review a patient you have seen with knee...

    Incorrect

    • You ask your consultant to review a patient you have seen with knee pain. Following a history and examination, the consultant makes a diagnosis of patellofemoral pain syndrome.

      Which SINGLE statement is correct regarding this diagnosis?

      Your Answer: It occurs more commonly in men than women

      Correct Answer: It affects more than one tendon

      Explanation:

      De Quervain’s tenosynovitis is a condition characterized by inflammation and thickening of the sheath that contains the tendons of the extensor pollicis brevis and abductor pollicis longus. This leads to pain on the radial side of the wrist. It is more commonly observed in women, particularly those aged between 30 and 50 years. The condition is often associated with repetitive activities that involve pinching and grasping.

      During examination, swelling and tenderness along the tendon sheath may be observed. The tendon sheath itself may also appear thickened. The most pronounced tenderness is usually felt over the tip of the radial styloid. A positive Finkelstein’s test, which involves flexing the wrist and moving it towards the ulnar side while the thumb is flexed across the palm, can help confirm the diagnosis.

      Treatment for De Quervain’s tenosynovitis involves avoiding movements that can trigger symptoms and using a thumb splint to immobilize the thumb. In cases where symptoms persist, a local corticosteroid injection or surgical decompression may be considered.

    • This question is part of the following fields:

      • Musculoskeletal (non-traumatic)
      25
      Seconds
  • Question 4 - A 60-year-old woman is found to have immunoglobulin light chains in her urine.
    Which...

    Correct

    • A 60-year-old woman is found to have immunoglobulin light chains in her urine.
      Which of the following is the MOST LIKELY diagnosis?

      Your Answer: Multiple myeloma

      Explanation:

      Immunoglobulin light chains that are present in the urine are commonly known as Bence-Jones proteins (BJP). These proteins are primarily observed in individuals with multiple myeloma, although they can occasionally be detected in Waldenström macroglobulinemia, although this is a rare occurrence. It is important to note that BJP in the urine is not observed in the other conditions mentioned in this question.

    • This question is part of the following fields:

      • Haematology
      7.1
      Seconds
  • Question 5 - You are present at a trauma call for an elderly pedestrian who has...

    Incorrect

    • You are present at a trauma call for an elderly pedestrian who has been hit by a vehicle. She exhibits bruising on the right side of her chest. The primary survey has been conducted, and you have been tasked with conducting a secondary survey.
      As per the ATLS guidelines, which of the following would be considered a potentially life-threatening chest injury that should be identified and addressed during the SECONDARY survey?

      Your Answer: Massive haemothorax

      Correct Answer: Traumatic aortic disruption

      Explanation:

      The ATLS guidelines categorize chest injuries in trauma into two groups: life-threatening injuries that require immediate identification and treatment in the primary survey, and potentially life-threatening injuries that should be identified and treated in the secondary survey.

      During the primary survey, the focus is on identifying and treating life-threatening thoracic injuries. These include airway obstruction, tracheobronchial tree injury, tension pneumothorax, open pneumothorax, massive haemothorax, and cardiac tamponade. Prompt recognition and intervention are crucial in order to prevent further deterioration and potential fatality.

      In the secondary survey, attention is given to potentially life-threatening injuries that may not be immediately apparent. These include simple pneumothorax, haemothorax, flail chest, pulmonary contusion, blunt cardiac injury, traumatic aortic disruption, traumatic diaphragmatic injury, and blunt oesophageal rupture. These injuries may not pose an immediate threat to life, but they still require identification and appropriate management to prevent complications and ensure optimal patient outcomes.

      By dividing chest injuries into these two categories and addressing them in a systematic manner, healthcare providers can effectively prioritize and manage trauma patients, ultimately improving their chances of survival and recovery.

    • This question is part of the following fields:

      • Trauma
      14.6
      Seconds
  • Question 6 - You evaluate a 42-year-old woman with a long-standing history of alcohol abuse. She...

    Incorrect

    • You evaluate a 42-year-old woman with a long-standing history of alcohol abuse. She is determined to quit drinking and has the complete backing of her family. Currently, she consumes 20-30 units of alcohol daily. You opt to utilize a screening questionnaire to evaluate the extent of her dependency before referring her to specialized alcohol services.
      Which of the subsequent screening tests is endorsed by the current NICE guidance for this situation?

      Your Answer: AUDIT

      Correct Answer: SADQ

      Explanation:

      The Severity of Alcohol Dependence Questionnaire (SADQ) is a brief, self-administered questionnaire consisting of 20 items. It was developed by the World Health Organisation with the aim of assessing the severity of alcohol dependence. Another assessment tool recommended by NICE is the Leeds Dependence Questionnaire (LDQ), which is a self-completion questionnaire comprising of 10 items. The LDQ is designed to measure dependence on various substances. Both the SADQ and LDQ are considered useful in evaluating the severity of alcohol misuse.

      NICE suggests the use of specific assessment tools to effectively evaluate the nature and severity of alcohol misuse. The AUDIT is recommended for identification purposes and as a routine outcome measure. For assessing the severity of dependence, the SADQ or LDQ are recommended. To evaluate the severity of withdrawal symptoms, the Clinical Institute Withdrawal Assessment of Alcohol Scale, revised (CIWA-Ar) is recommended. Lastly, the APQ is recommended for assessing the nature and extent of problems arising from alcohol misuse.

      to the NICE guidance on the diagnosis, assessment, and management of harmful drinking and alcohol dependence.

    • This question is part of the following fields:

      • Mental Health
      9.6
      Seconds
  • Question 7 - A 32 year old male is brought into the emergency department by coworkers....

    Incorrect

    • A 32 year old male is brought into the emergency department by coworkers. The patient was having lunch when he started to experience wheezing and noticed swelling in his lips. He is immediately taken to the resuscitation bay. One of the coworkers mentions that they saw the patient take a pill with his meal. Which of the following medications or medication classes is the primary culprit for inducing anaphylaxis?

      Your Answer: Angiotensin converting enzyme Inhibitors

      Correct Answer: Antibiotics

      Explanation:

      In cases of anaphylaxis, it is important to administer non-sedating antihistamines after adrenaline administration and initial resuscitation. Previous guidelines recommended the use of chlorpheniramine and hydrocortisone as third line treatments, but the 2021 guidelines have removed this recommendation. Corticosteroids are no longer advised. Instead, it is now recommended to use non-sedating antihistamines such as cetirizine, loratadine, and fexofenadine, as alternatives to the sedating antihistamine chlorpheniramine. The top priority treatments for anaphylaxis are adrenaline, oxygen, and fluids. The Resuscitation Council advises that administration of non-sedating antihistamines should occur after the initial resuscitation.

      Further Reading:

      Anaphylaxis is a severe and life-threatening hypersensitivity reaction that can have sudden onset and progression. It is characterized by skin or mucosal changes and can lead to life-threatening airway, breathing, or circulatory problems. Anaphylaxis can be allergic or non-allergic in nature.

      In allergic anaphylaxis, there is an immediate hypersensitivity reaction where an antigen stimulates the production of IgE antibodies. These antibodies bind to mast cells and basophils. Upon re-exposure to the antigen, the IgE-covered cells release histamine and other inflammatory mediators, causing smooth muscle contraction and vasodilation.

      Non-allergic anaphylaxis occurs when mast cells degrade due to a non-immune mediator. The clinical outcome is the same as in allergic anaphylaxis.

      The management of anaphylaxis is the same regardless of the cause. Adrenaline is the most important drug and should be administered as soon as possible. The recommended doses for adrenaline vary based on age. Other treatments include high flow oxygen and an IV fluid challenge. Corticosteroids and chlorpheniramine are no longer recommended, while non-sedating antihistamines may be considered as third-line treatment after initial stabilization of airway, breathing, and circulation.

      Common causes of anaphylaxis include food (such as nuts, which is the most common cause in children), drugs, and venom (such as wasp stings). Sometimes it can be challenging to determine if a patient had a true episode of anaphylaxis. In such cases, serum tryptase levels may be measured, as they remain elevated for up to 12 hours following an acute episode of anaphylaxis.

      The Resuscitation Council (UK) provides guidelines for the management of anaphylaxis, including a visual algorithm that outlines the recommended steps for treatment.
      https://www.resus.org.uk/sites/default/files/2021-05/Emergency%20Treatment%20of%20Anaphylaxis%20May%202021_0.pdf

    • This question is part of the following fields:

      • Pharmacology & Poisoning
      11.2
      Seconds
  • Question 8 - You review an elderly patient with a history of heart disease that has...

    Incorrect

    • You review an elderly patient with a history of heart disease that has presented with shortness of breath, chest pain, and dizziness. Upon reviewing his cardiac tests today, you note that his ejection fraction has recently fallen significantly.
      Elderly patients should undergo cardiac intervention when their ejection fraction (EF) reaches what level?

      Your Answer: 25 ml/minute

      Correct Answer: 15 ml/minute

      Explanation:

      Patients typically initiate dialysis when their glomerular filtration rate (GFR) drops to 10 ml/min. However, if the patient has diabetes, dialysis may be recommended when their GFR reaches 15 ml/min. The GFR is a measure of kidney function and indicates how well the kidneys are able to filter waste products from the blood. Dialysis is a medical procedure that helps perform the function of the kidneys by removing waste and excess fluid from the body.

    • This question is part of the following fields:

      • Nephrology
      13.6
      Seconds
  • Question 9 - Your consultant requests you to arrange a teaching session on secondary causes of...

    Incorrect

    • Your consultant requests you to arrange a teaching session on secondary causes of hypertension. Which of the subsequent electrolyte abnormalities would be in line with a diagnosis of Conn's syndrome?

      Your Answer: Hyperkalaemia and hyponatraemia

      Correct Answer: Hypokalaemia and hypernatraemia

      Explanation:

      Patients with primary hyperaldosteronism typically present with hypertension and hypokalemia. This is due to the fact that aldosterone encourages the reabsorption of sodium and the excretion of potassium, leading to an imbalance in these electrolytes. Additionally, hypernatremia, or high levels of sodium in the blood, is often observed in these patients.

      Further Reading:

      Hyperaldosteronism is a condition characterized by excessive production of aldosterone by the adrenal glands. It can be classified into primary and secondary hyperaldosteronism. Primary hyperaldosteronism, also known as Conn’s syndrome, is typically caused by adrenal hyperplasia or adrenal tumors. Secondary hyperaldosteronism, on the other hand, is a result of high renin levels in response to reduced blood flow across the juxtaglomerular apparatus.

      Aldosterone is the main mineralocorticoid steroid hormone produced by the adrenal cortex. It acts on the distal renal tubule and collecting duct of the nephron, promoting the reabsorption of sodium ions and water while secreting potassium ions.

      The causes of hyperaldosteronism vary depending on whether it is primary or secondary. Primary hyperaldosteronism can be caused by adrenal adenoma, adrenal hyperplasia, adrenal carcinoma, or familial hyperaldosteronism. Secondary hyperaldosteronism can be caused by renal artery stenosis, reninoma, renal tubular acidosis, nutcracker syndrome, ectopic tumors, massive ascites, left ventricular failure, or cor pulmonale.

      Clinical features of hyperaldosteronism include hypertension, hypokalemia, metabolic alkalosis, hypernatremia, polyuria, polydipsia, headaches, lethargy, muscle weakness and spasms, and numbness. It is estimated that hyperaldosteronism is present in 5-10% of patients with hypertension, and hypertension in primary hyperaldosteronism is often resistant to drug treatment.

      Diagnosis of hyperaldosteronism involves various investigations, including U&Es to assess electrolyte disturbances, aldosterone-to-renin plasma ratio (ARR) as the gold standard diagnostic test, ECG to detect arrhythmia, CT/MRI scans to locate adenoma, fludrocortisone suppression test or oral salt testing to confirm primary hyperaldosteronism, genetic testing to identify familial hyperaldosteronism, and adrenal venous sampling to determine lateralization prior to surgery.

      Treatment of primary hyperaldosteronism typically involves surgical adrenalectomy for patients with unilateral primary aldosteronism. Diet modification with sodium restriction and potassium supplementation may also be recommended.

    • This question is part of the following fields:

      • Endocrinology
      15.8
      Seconds
  • Question 10 - A middle-aged man is brought in by ambulance, having collapsed. There is currently...

    Incorrect

    • A middle-aged man is brought in by ambulance, having collapsed. There is currently a summer heatwave, and he has a suspected diagnosis of heat stroke.

      Which of the following statements regarding heat stroke is true?

      Your Answer: Heat stroke is defined as a systemic inflammatory response with a core temperature that is greater than 39.6°C

      Correct Answer: Diazepam can be helpful in patients with agitation and/or shivering

      Explanation:

      Heat stroke is a condition characterized by a systemic inflammatory response, where the core body temperature exceeds 40.6°C. It is accompanied by changes in mental state and varying levels of organ dysfunction. Heat stroke occurs when the body’s ability to regulate temperature is overwhelmed by a combination of excessive environmental heat, excessive heat production from metabolic processes (usually due to exertion), and inadequate heat loss.

      It is important to consider other clinical conditions that can cause an increased core temperature. Sepsis can present similarly and should be ruled out. Neuroleptic malignant syndrome should be excluded in patients taking phenothiazines or other antipsychotics. Serotonin syndrome should be excluded in patients taking serotonergic medications such as SSRIs. Malignant hyperthermia should be considered in patients with a recent history of general anesthesia. Screening for recreational drug use, particularly cocaine, amphetamines, and ecstasy, is also recommended.

      In patients with agitation and/or shivering, benzodiazepines (e.g. diazepam) can be beneficial. They help reduce excessive heat production and agitation. In severe cases of agitation, paralysis may be necessary. Dantrolene is commonly used, although there is currently limited high-level evidence supporting its use. Neuroleptics, such as chlorpromazine, which were once commonly used, should be avoided due to potential adverse effects.

      Various cooling techniques are recommended, but there is currently insufficient evidence to determine the best approach. Simple measures like cold drinks, fanning, ice water packs, and spraying tepid water can be effective. Cold water immersion therapy may be helpful, but it requires patient stability and cooperation and may not be practical for critically ill patients. Advanced cooling techniques, such as cold IV fluids, surface cooling devices (SCD), intravascular cooling devices (ICD), and extracorporeal circuits, may be used for sicker patients.

    • This question is part of the following fields:

      • Environmental Emergencies
      23.1
      Seconds
  • Question 11 - A 25-year-old woman with inflammatory bowel disease (IBD) presents with a condition associated...

    Incorrect

    • A 25-year-old woman with inflammatory bowel disease (IBD) presents with a condition associated with IBD.
      Which of the following conditions is NOT linked to Crohn's disease?

      Your Answer: Erythema nodosum

      Correct Answer: Primary sclerosing cholangitis

      Explanation:

      Primary sclerosing cholangitis (PSC) is a condition that affects the bile ducts, causing inflammation and blockage over time. This leads to recurrent episodes of cholangitis and progressive scarring of the bile ducts. Ultimately, PSC can result in liver cirrhosis, liver failure, and even hepatocellular carcinoma. It is commonly associated with ulcerative colitis, with more than 80% of PSC patients also having ulcerative colitis. However, there is no association between PSC and Crohn’s disease.

      On the other hand, Crohn’s disease has its own set of recognized associations. For instance, there is an increased incidence of Crohn’s disease among smokers, with approximately 50-60% of Crohn’s patients being smokers. Other associations include the presence of aphthous ulcers, uveitis and episcleritis (eye inflammation), seronegative spondyloarthropathies (inflammatory joint diseases), erythema nodosum (painful skin nodules), pyoderma gangrenosum (skin ulceration), finger clubbing, autoimmune hemolytic anemia, cholelithiasis (gallstones), and osteoporosis.

      It is important to note the distinct associations and characteristics of these two conditions, as they have different implications for diagnosis, treatment, and management.

    • This question is part of the following fields:

      • Gastroenterology & Hepatology
      11.9
      Seconds
  • Question 12 - A 25-year-old traveler returns from a recent trip to Northern India with frequent...

    Correct

    • A 25-year-old traveler returns from a recent trip to Northern India with frequent headaches and occasional fevers. She describes experiencing intense chills, followed by feeling hot and then sweating profusely.

      During examination, she appears drowsy and has a temperature of 38.9°C. There are no noticeable swollen lymph nodes or rash, but upon examining her abdomen, hepatosplenomegaly is observed.

      Today's blood tests reveal the following results:
      - Sodium (Na): 140 mmol/L (135-147 mmol/L)
      - Potassium (K): 4.9 mmol/L (3.5-5.5 mmol/L)
      - Urea: 11.5 mmol/L (2.0-6.6 mmol/L)
      - Creatinine: 268 mmol/L (75-125 mmol/L)

      What is the SINGLE most likely diagnosis?

      Your Answer: Malaria

      Explanation:

      Malaria is a contagious illness that is spread by female mosquitoes of the Anopheles genus. It is caused by a parasitic infection from the Plasmodium genus. There are five species of Plasmodium that can cause disease in humans: Plasmodium falciparum, Plasmodium ovale, Plasmodium vivax, Plasmodium malariae, and Plasmodium knowlesi.

      The main symptom of malaria is the malarial paroxysm, which is a recurring cycle of cold, hot, and sweating stages. During the cold stage, the patient experiences intense chills, followed by an extremely hot stage, and finally a stage of profuse sweating. Upon examination, the patient may show signs of anemia, jaundice, and have an enlarged liver and spleen, but no signs of swollen lymph nodes.

      Plasmodium falciparum is the most severe form of malaria and is responsible for the majority of deaths. Severe or complicated malaria is indicated by impaired consciousness, seizures, low blood sugar, anemia, kidney damage, difficulty breathing, and spontaneous bleeding. Given the presentation, it is likely that this case involves Plasmodium falciparum.

      Currently, artemisinin-based combination therapy (ACT) is recommended for treating P. falciparum malaria. This involves combining fast-acting artemisinin-based compounds with a drug from a different class. Companion drugs include lumefantrine, mefloquine, amodiaquine, sulfadoxine/pyrimethamine, piperaquine, and chlorproguanil/dapsone. Artemisinin derivatives include dihydroartemisinin, artesunate, and artemether.

      If ACT is not available, oral quinine or atovaquone with proguanil hydrochloride can be used. Quinine is highly effective but not well tolerated for long-term treatment, so it should be combined with another drug, usually oral doxycycline (or clindamycin for pregnant women and young children).

      Severe or complicated falciparum malaria should be managed in a high dependency unit or intensive care setting. Intravenous artesunate is recommended for all patients with severe or complicated falciparum malaria, or those at high risk of developing severe disease (such as if more than 2% of red blood cells are infected), or

    • This question is part of the following fields:

      • Infectious Diseases
      18.6
      Seconds
  • Question 13 - A 28-year-old woman comes in with lower abdominal pain, painful urination, pain during...

    Correct

    • A 28-year-old woman comes in with lower abdominal pain, painful urination, pain during intercourse, and thick, yellowish vaginal discharge. Based on the clinical findings, you diagnose her with pelvic inflammatory disease (PID).
      When would hospitalization be necessary in this case?

      Your Answer: Concurrent pregnancy

      Explanation:

      Pelvic inflammatory disease (PID) is a pelvic infection that affects the upper female reproductive tract, including the uterus, fallopian tubes, and ovaries. It is typically caused by an ascending infection from the cervix and is commonly associated with sexually transmitted diseases like chlamydia and gonorrhea. In the UK, genital Chlamydia trachomatis infection is the most common cause of PID seen in genitourinary medicine clinics.

      PID can often be asymptomatic, but when symptoms are present, they may include lower abdominal pain and tenderness, fever, painful urination, painful intercourse, purulent vaginal discharge, abnormal vaginal bleeding, and tenderness in the cervix and adnexa. It is important to note that symptoms of ectopic pregnancy can be similar to those of PID, so a pregnancy test should be conducted for all patients with suspicious symptoms.

      To investigate a possible case of PID, endocervical swabs should be taken to test for C. trachomatis and N. gonorrhoeae using nucleic acid amplification tests if available. Mild to moderate cases of PID can usually be managed in primary care or outpatient settings, while patients with severe disease should be admitted to the hospital for intravenous antibiotics. Signs of severe disease include a fever above 38°C, signs of a tubo-ovarian abscess, signs of pelvic peritonitis, or concurrent pregnancy.

      Empirical antibiotic treatment should be initiated as soon as a presumptive diagnosis of PID is made clinically, without waiting for swab results. The current recommended outpatient treatment for PID is a single intramuscular dose of ceftriaxone 500 mg, followed by oral doxycycline 100 mg twice daily and oral metronidazole 400 mg twice daily for 14 days. An alternative regimen is oral ofloxacin 400 mg twice daily and oral metronidazole 400 mg twice daily for 14 days.

      For severely ill patients in the inpatient setting, initial treatment includes intravenous doxycycline, a single-dose of intravenous ceftriaxone, and intravenous metronidazole. This is then followed by a switch to oral doxycycline and metronidazole to complete a 14-day treatment course. If a patient fails to respond to treatment, laparoscopy is necessary to confirm the diagnosis or consider alternative diagnoses.

    • This question is part of the following fields:

      • Obstetrics & Gynaecology
      5.7
      Seconds
  • Question 14 - You are requested to evaluate a toddler with a skin rash who has...

    Incorrect

    • You are requested to evaluate a toddler with a skin rash who has been examined by one of the medical students. The medical student provides a tentative diagnosis of roseola. What is the infectious agent responsible for this condition?

      Your Answer: Parvovirus B19

      Correct Answer: Human herpesvirus 6B

      Explanation:

      The primary cause of roseola is the human herpesvirus 6B (HHV6B), with the human herpesvirus 7 (HHV7) being a less common cause.

      Further Reading:

      Roseola infantum, also known as roseola, exanthem subitum, or sixth disease, is a common disease that affects infants. It is primarily caused by the human herpesvirus 6B (HHV6B) and less commonly by human herpesvirus 7 (HHV7). Many cases of roseola are asymptomatic, and the disease is typically spread through saliva from an asymptomatic infected individual. The incubation period for roseola is around 10 days.

      Roseola is most commonly seen in children between 6 months and 3 years of age, and studies have shown that as many as 85% of children will have had roseola by the age of 1 year. The clinical features of roseola include a high fever lasting for 2-5 days, accompanied by upper respiratory tract infection (URTI) signs such as rhinorrhea, sinus congestion, sore throat, and cough. After the fever subsides, a maculopapular rash appears, characterized by rose-pink papules on the trunk that may spread to the extremities. The rash is non-itchy and painless and can last from a few hours to a few days. Around 2/3 of patients may also have erythematous papules, known as Nagayama spots, on the soft palate and uvula. Febrile convulsions occur in approximately 10-15% of cases, and diarrhea is commonly seen.

      Management of roseola is usually conservative, with rest, maintaining adequate fluid intake, and taking paracetamol for fever being the main recommendations. The disease is typically mild and self-limiting. However, complications can arise from HHV6 infection, including febrile convulsions, aseptic meningitis, and hepatitis.

    • This question is part of the following fields:

      • Dermatology
      8.1
      Seconds
  • Question 15 - A 45-year-old man presents with a history of heavy menstrual bleeding and frequent...

    Correct

    • A 45-year-old man presents with a history of heavy menstrual bleeding and frequent nosebleeds. He is currently taking a medication but cannot remember its name or why he takes it. You have ordered a series of blood tests for him. The results are as follows:

      Hemoglobin (Hb): 12.2 g/dL (normal range: 12-15 g/dL)
      Mean Corpuscular Volume (MCV): 82 fl (normal range: 80-100 fl)
      Platelet count: 212 x 10^9/L (normal range: 150-400 x 10^9/L)
      Bleeding time: 11 minutes (normal range: 2-7 minutes)
      Prothrombin time: 12 seconds (normal range: 10-14 seconds)
      Thrombin time: 17 seconds (normal range: 15-19 seconds)
      Activated Partial Thromboplastin Time (APTT): 60 seconds (normal range: 35-45 seconds)

      Based on these results, what is the most likely diagnosis for this patient?

      Your Answer: Von Willebrand’s disease

      Explanation:

      Von Willebrand disease (vWD) is a common hereditary coagulation disorder that affects approximately 1 in 100 people. It occurs due to a deficiency in Von Willebrand factor (vWF), which leads to reduced levels of factor VIII. vWF plays a crucial role in protecting factor VIII from breaking down quickly in the blood. Additionally, it is necessary for proper platelet adhesion, so a deficiency in vWF also results in abnormal platelet function. As a result, both the APTT and bleeding time are prolonged, while the platelet count and thrombin time remain unaffected.

      Many individuals with vWD do not experience any symptoms and are diagnosed incidentally during a routine clotting profile check. However, if symptoms do occur, the most common ones include easy bruising, nosebleeds (epistaxis), and heavy menstrual bleeding (menorrhagia). In severe cases, more significant bleeding and joint bleeding (haemarthrosis) can occur.

      For mild cases of von Willebrand disease, bleeding can be treated with desmopressin. This medication works by increasing the patient’s own levels of vWF, as it releases vWF stored in the Weibel-Palade bodies found in the endothelial cells. In more severe cases, replacement therapy is necessary, which involves cryoprecipitate infusions or Factor VIII concentrate. Replacement therapy is recommended for patients with severe von Willebrand’s disease who are undergoing moderate or major surgical procedures.

      Congenital afibrinogenaemia is a rare coagulation disorder characterized by a deficiency or malfunction of fibrinogen. This condition leads to a prolongation of the prothrombin time, bleeding time, and APTT. However, it does not affect the platelet count.

      Aspirin therapy works by inhibiting platelet cyclo-oxygenase, an essential enzyme in the generation of thromboxane A2 (TXA2). By inhibiting TXA2, aspirin reduces platelet activation and aggregation. Consequently, aspirin therapy prolongs the bleeding time but does not have an impact on the platelet count, prothrombin time, or APTT.

      Warfarin, on the other hand, inhibits the synthesis of clotting factors II, VII, IX, and X, as well as protein C and protein S, which are all dependent on vitamin K.

    • This question is part of the following fields:

      • Haematology
      38.3
      Seconds
  • Question 16 - A 22-year-old presents to the emergency department with a nosebleed. You observe that...

    Correct

    • A 22-year-old presents to the emergency department with a nosebleed. You observe that they have blood-soaked tissue paper held against the nose, blocking the opening of the left nostril, and blood stains on the front of their shirt. What is the most appropriate initial management for this patient?

      Your Answer: Advise the patient to sit forward and pinch just in front of the bony septum firmly and hold it for 15 minutes

      Explanation:

      To control epistaxis, it is recommended to have the patient sit upright with their upper body tilted forward and their mouth open. Firmly pinch the cartilaginous part of the nose, specifically in front of the bony septum, and maintain pressure for 10-15 minutes without releasing it.

      Further Reading:

      Epistaxis, or nosebleed, is a common condition that can occur in both children and older adults. It is classified as either anterior or posterior, depending on the location of the bleeding. Anterior epistaxis usually occurs in younger individuals and arises from the nostril, most commonly from an area called Little’s area. These bleeds are usually not severe and account for the majority of nosebleeds seen in hospitals. Posterior nosebleeds, on the other hand, occur in older patients with conditions such as hypertension and atherosclerosis. The bleeding in posterior nosebleeds is likely to come from both nostrils and originates from the superior or posterior parts of the nasal cavity or nasopharynx.

      The management of epistaxis involves assessing the patient for signs of instability and implementing measures to control the bleeding. Initial measures include sitting the patient upright with their upper body tilted forward and their mouth open. Firmly pinching the cartilaginous part of the nose for 10-15 minutes without releasing the pressure can also help stop the bleeding. If these measures are successful, a cream called Naseptin or mupirocin nasal ointment can be prescribed for further treatment.

      If bleeding persists after the initial measures, nasal cautery or nasal packing may be necessary. Nasal cautery involves using a silver nitrate stick to cauterize the bleeding point, while nasal packing involves inserting nasal tampons or inflatable nasal packs to stop the bleeding. In cases of posterior bleeding, posterior nasal packing or surgery to tie off the bleeding vessel may be considered.

      Complications of epistaxis can include nasal bleeding, hypovolemia, anemia, aspiration, and even death. Complications specific to nasal packing include sinusitis, septal hematoma or abscess, pressure necrosis, toxic shock syndrome, and apneic episodes. Nasal cautery can lead to complications such as septal perforation and caustic injury to the surrounding skin.

      In children under the age of 2 presenting with epistaxis, it is important to refer them for further investigation as an underlying cause is more likely in this age group.

    • This question is part of the following fields:

      • Ear, Nose & Throat
      16.4
      Seconds
  • Question 17 - You are asked to assess a patient with a plasma potassium level of...

    Incorrect

    • You are asked to assess a patient with a plasma potassium level of 6.7 mmol/L.
      What is the SINGLE LEAST probable reason for this?

      Your Answer: Beta-blockers

      Correct Answer: Bartter’s syndrome

      Explanation:

      Bartter’s syndrome is a rare genetic defect that affects the ascending limb of the loop of Henle. This condition is characterized by low blood pressure and a hypokalemic alkalosis, which means there is a decrease in potassium levels in the blood.

      Hyperkalemia, on the other hand, is defined as having a plasma potassium level greater than 5.5 mmol/L. There are various non-drug factors that can cause hyperkalemia, such as renal failure, excessive potassium supplementation, Addison’s disease (adrenal insufficiency), congenital adrenal hyperplasia, renal tubular acidosis (type 4), rhabdomyolysis, burns and trauma, and tumor lysis syndrome. Additionally, acidosis can also contribute to the development of hyperkalemia.

      In addition to these non-drug causes, certain medications can also lead to hyperkalemia. These include ACE inhibitors, angiotensin receptor blockers, NSAIDs, beta-blockers, digoxin, and suxamethonium. It is important to be aware of these potential causes and to monitor potassium levels in order to prevent and manage hyperkalemia effectively.

    • This question is part of the following fields:

      • Nephrology
      14.4
      Seconds
  • Question 18 - A 3-year-old boy has a fever accompanied by a sore throat and a...

    Incorrect

    • A 3-year-old boy has a fever accompanied by a sore throat and a decreased desire to eat. His mother has observed itchy patches on the palms of his hands and soles of his feet. During your examination, you observe small red sores in his mouth.
      What is the SINGLE most probable causative organism in this scenario?

      Your Answer: Parvovirus B19

      Correct Answer: Coxsackie A

      Explanation:

      Hand-foot-and-mouth disease is a viral syndrome characterized by a unique rash and sores. The main culprit behind this condition is typically the Coxsackie A16 virus. After being exposed to the virus, it takes about 3-5 days for symptoms to appear. The disease spreads through droplets in the air. Before the rash and sores develop, individuals may experience a pre-illness phase with symptoms like a sore throat and mouth ulcers. This condition primarily affects children under the age of ten. In addition to the rash, most children will also develop spots on their hands and feet.

      When it comes to treatment, the focus is mainly on providing support. This involves using antipyretics to reduce fever and ensuring that the affected individual stays well-hydrated. Due to the mouth ulcers, loss of appetite is common, so it’s important to encourage adequate fluid intake.

    • This question is part of the following fields:

      • Dermatology
      13.7
      Seconds
  • Question 19 - A 45 year old male comes to the emergency department with a two...

    Incorrect

    • A 45 year old male comes to the emergency department with a two day history of nausea, vomiting, and upper abdominal pain. The patient vomits during triage and examination reveals coffee ground vomit. You determine that a risk assessment is necessary due to the evidence of an upper gastrointestinal bleed. Which risk assessment should be used as the initial assessment for patients who present with acute upper gastrointestinal bleeding?

      Your Answer: Full Rockall score

      Correct Answer: Glasgow-Blatchford score

      Explanation:

      One commonly used risk assessment tool for acute upper gastrointestinal bleeding is the Glasgow-Blatchford score. This score takes into account various factors such as blood pressure, heart rate, blood urea nitrogen levels, hemoglobin levels, and the presence of melena or syncope. By assigning points to each of these factors, the Glasgow-Blatchford score helps to stratify patients into low or high-risk categories.

      Further Reading:

      Upper gastrointestinal bleeding (UGIB) refers to the loss of blood from the gastrointestinal tract, occurring in the upper part of the digestive system. It can present as haematemesis (vomiting blood), coffee-ground emesis, bright red blood in the nasogastric tube, or melaena (black, tarry stools). UGIB can lead to significant hemodynamic compromise and is a major health burden, accounting for approximately 70,000 hospital admissions each year in the UK with a mortality rate of 10%.

      The causes of UGIB vary, with peptic ulcer disease being the most common cause, followed by gastritis/erosions, esophagitis, and other less common causes such as varices, Mallory Weiss tears, and malignancy. Swift assessment, hemodynamic resuscitation, and appropriate interventions are essential for the management of UGIB.

      Assessment of patients with UGIB should follow an ABCDE approach, and scoring systems such as the Glasgow-Blatchford bleeding score (GBS) and the Rockall score are recommended to risk stratify patients and determine the urgency of endoscopy. Transfusion may be necessary for patients with massive hemorrhage, and platelet transfusion, fresh frozen plasma (FFP), and prothrombin complex concentrate may be offered based on specific criteria.

      Endoscopy plays a crucial role in the management of UGIB. Unstable patients with severe acute UGIB should undergo endoscopy immediately after resuscitation, while all other patients should undergo endoscopy within 24 hours of admission. Endoscopic treatment of non-variceal bleeding may involve mechanical methods of hemostasis, thermal coagulation, or the use of fibrin or thrombin with adrenaline. Proton pump inhibitors should only be used after endoscopy.

      Variceal bleeding requires specific management, including the use of terlipressin and prophylactic antibiotics. Oesophageal varices can be treated with band ligation or transjugular intrahepatic portosystemic shunts (TIPS), while gastric varices may be treated with endoscopic injection of N-butyl-2-cyanoacrylate or TIPS if bleeding is not controlled.

      For patients taking NSAIDs, aspirin, or clopidogrel, low-dose aspirin can be continued once hemostasis is achieved, NSAIDs should be stopped in patients presenting with UGIB

    • This question is part of the following fields:

      • Gastroenterology & Hepatology
      20.1
      Seconds
  • Question 20 - A 32 year old female presents to the emergency department complaining of feeling...

    Incorrect

    • A 32 year old female presents to the emergency department complaining of feeling something enter her left ear and experiencing a persistent sensation of it being stuck inside. Upon examination using an otoscope, a small fly is observed moving within the ear canal but appears to be trapped in earwax. The tympanic membrane appears intact.

      What is the most suitable initial approach to managing this patient?

      Your Answer: Irrigate ear with cold water

      Correct Answer: Instill the ear canal with 2% lidocaine

      Explanation:

      Lidocaine is commonly chosen because it offers some local anesthesia. Alternatively, mineral oil can be used. Cold water irrigation can often cause nausea and vomiting, so it is recommended to use warm water for irrigation. An ENT clinician should be able to remove an insect from the ear canal. However, if removal attempts are unsuccessful or complications arise, a referral may be necessary.

      Further Reading:

      Foreign bodies in the ear or nose are a common occurrence, especially in children between the ages of 2 and 8. Foreign bodies in the ear are more common than those in the nose. Symptoms of foreign bodies in the ear may include ear pain, a feeling of fullness, impaired hearing, discharge, tinnitus, and vertigo. It is important to consider referral to an ENT specialist for the removal of potentially harmful foreign bodies such as glass, sharp objects, button batteries, and tightly wedged items. ENT involvement is also necessary if there is a perforation of the eardrum or if the foreign body is embedded in the eardrum.

      When preparing a patient for removal, it is important to establish rapport and keep the patient relaxed, especially if they are a young child. The patient should be positioned comfortably and securely, and ear drops may be used to anesthetize the ear. Removal methods for foreign bodies in the ear include the use of forceps or a hook, irrigation (except for batteries, perforations, or organic material), suction, and magnets for ferrous metal foreign bodies. If there is an insect in the ear, it should be killed with alcohol, lignocaine, or mineral oil before removal.

      After the foreign body is removed, it is important to check for any residual foreign bodies and to discharge the patient with appropriate safety net advice. Prophylactic antibiotic drops may be considered if there has been an abrasion of the skin.

      Foreign bodies in the nose are less common but should be dealt with promptly due to the risk of posterior dislodgement into the airway. Symptoms of foreign bodies in the nose may include nasal discharge, sinusitis, nasal pain, epistaxis, or blood-stained discharge. Most nasal foreign bodies are found on the anterior or middle third of the nose and may not show up on x-rays.

      Methods for removing foreign bodies from the nose include the mother’s kiss technique, suction, forceps, Jobson horne probe, and foley catheter. The mother’s kiss technique involves occluding the patent nostril and having a parent blow into the patient’s mouth. A foley catheter can be used by inserting it past the foreign body and inflating the balloon to gently push the foreign body out. ENT referral may be necessary if the foreign body cannot be visualized but there is a high suspicion, if attempts to remove the foreign body have failed, if the patient requires sed

    • This question is part of the following fields:

      • Ear, Nose & Throat
      14.4
      Seconds
  • Question 21 - A 60-year-old woman comes in with a cough producing green sputum that has...

    Correct

    • A 60-year-old woman comes in with a cough producing green sputum that has been ongoing for the past two days. During the examination, she has a fever, with a temperature of 38.0°C, and exhibits coarse crackles in the lower right lung on chest examination.

      What is the MOST LIKELY single causative organism?

      Your Answer: Streptococcus pneumoniae

      Explanation:

      This patient is displaying symptoms and signs that are in line with community-acquired pneumonia (CAP). The most frequent cause of CAP in an adult patient who is otherwise in good health is Streptococcus pneumoniae.

    • This question is part of the following fields:

      • Respiratory
      10.4
      Seconds
  • Question 22 - A 32-year-old woman comes in with a history of worsening wheezing for the...

    Correct

    • A 32-year-old woman comes in with a history of worsening wheezing for the past three days. She has a history of seasonal allergies during the spring months, which have been more severe than usual in recent weeks. Upon listening to her chest, you can hear scattered polyphonic wheezes. Her peak flow at the time of presentation is 280 L/min, and her personal best peak flow is 550 L/min.
      What classification would you assign to this asthma exacerbation?

      Your Answer: Acute severe asthma

      Explanation:

      This man is experiencing an acute episode of asthma. His initial peak flow measurement is 46% of his best, indicating a severe exacerbation. According to the BTS guidelines, acute asthma can be classified as moderate, acute severe, life-threatening, or near-fatal.

      Moderate asthma is characterized by increasing symptoms and a peak expiratory flow rate (PEFR) between 50-75% of the individual’s best or predicted value. There are no signs of acute severe asthma in this case.

      Acute severe asthma is identified by any one of the following criteria: a PEFR between 33-50% of the best or predicted value, a respiratory rate exceeding 25 breaths per minute, a heart rate over 110 beats per minute, or the inability to complete sentences in one breath.

      Life-threatening asthma is indicated by any one of the following: a PEFR below 33% of the best or predicted value, oxygen saturation (SpO2) below 92%, arterial oxygen pressure (PaO2) below 8 kPa, normal arterial carbon dioxide pressure (PaCO2) between 4.6-6.0 kPa, a silent chest, cyanosis, poor respiratory effort, arrhythmia, exhaustion, altered conscious level, or hypotension.

      Near-fatal asthma is characterized by elevated PaCO2 levels and/or the need for mechanical ventilation with increased inflation pressures.

    • This question is part of the following fields:

      • Respiratory
      20.7
      Seconds
  • Question 23 - A 52 year old male presents to the emergency department complaining of worsening...

    Incorrect

    • A 52 year old male presents to the emergency department complaining of worsening chest pain associated with shortness of breath and dizziness over the past 24 hours. You note the patient has a long history of smoking and has been diagnosed with chronic obstructive pulmonary disease (COPD). On examination you note decreased breath sounds on the left side and dullness to percussion. The patient's observations are shown below:

      Blood pressure 120/80 mmHg
      Pulse 92 bpm
      Respiration rate 20 bpm
      Temperature 37.2ºC

      Which of the following is the most appropriate initial treatment for this patient?

      Your Answer: Oral co-amoxiclav

      Correct Answer: Intravenous ceftriaxone

      Explanation:

      Spontaneous bacterial peritonitis (SBP) is a condition where bacteria infect the fluid in the abdomen, known as ascites. It is commonly seen in patients with ascites. Symptoms of SBP include fever, chills, nausea, vomiting, abdominal pain, and mental confusion. To diagnose SBP, a procedure called paracentesis is done to analyze the fluid in the abdomen. If the neutrophil count in the fluid is higher than 250 cells/mm³, it confirms the diagnosis of SBP, regardless of whether bacteria are found in the culture. The initial treatment for acute community-acquired SBP is usually a 3rd generation cephalosporin antibiotic like cefotaxime or ceftriaxone. However, hospital-acquired SBP may require different antibiotics based on local resistance patterns. Patients who have had SBP in the past are at a high risk of recurrence and may need long-term antibiotic prophylaxis.

      Further Reading:

      Cirrhosis is a condition where the liver undergoes structural changes, resulting in dysfunction of its normal functions. It can be classified as either compensated or decompensated. Compensated cirrhosis refers to a stage where the liver can still function effectively with minimal symptoms, while decompensated cirrhosis is when the liver damage is severe and clinical complications are present.

      Cirrhosis develops over a period of several years due to repeated insults to the liver. Risk factors for cirrhosis include alcohol misuse, hepatitis B and C infection, obesity, type 2 diabetes, autoimmune liver disease, genetic conditions, certain medications, and other rare conditions.

      The prognosis of cirrhosis can be assessed using the Child-Pugh score, which predicts mortality based on parameters such as bilirubin levels, albumin levels, INR, ascites, and encephalopathy. The score ranges from A to C, with higher scores indicating a poorer prognosis.

      Complications of cirrhosis include portal hypertension, ascites, hepatic encephalopathy, variceal hemorrhage, increased infection risk, hepatocellular carcinoma, and cardiovascular complications.

      Diagnosis of cirrhosis is typically done through liver function tests, blood tests, viral hepatitis screening, and imaging techniques such as transient elastography or acoustic radiation force impulse imaging. Liver biopsy may also be performed in some cases.

      Management of cirrhosis involves treating the underlying cause, controlling risk factors, and monitoring for complications. Complications such as ascites, spontaneous bacterial peritonitis, oesophageal varices, and hepatic encephalopathy require specific management strategies.

      Overall, cirrhosis is a progressive condition that requires ongoing monitoring and management to prevent further complications and improve outcomes for patients.

    • This question is part of the following fields:

      • Gastroenterology & Hepatology
      37.2
      Seconds
  • Question 24 - A 68-year-old patient with advanced metastatic prostate cancer is experiencing significant difficulty breathing...

    Correct

    • A 68-year-old patient with advanced metastatic prostate cancer is experiencing significant difficulty breathing and appears visibly distressed. Despite his discomfort, he remains mentally alert and reports moderate levels of pain. He has been informed that he has only a few days left to live. Currently, his oxygen saturation levels are at 95% when breathing regular air, and there are no specific signs of chest abnormalities.
      What would be the most suitable course of action to alleviate his breathlessness in this situation?

      Your Answer: Oral morphine

      Explanation:

      Here are some suggestions for managing breathlessness in the final days of life, as provided by NICE:

      1. It is important to identify and treat any reversible causes of breathlessness in the dying person, such as pulmonary edema or pleural effusion.

      2. Non-pharmacological methods can be considered for managing breathlessness in someone nearing the end of life. It is not recommended to start oxygen therapy as a routine measure. Oxygen should only be offered to individuals who are known or suspected to have symptomatic hypoxemia.

      3. Breathlessness can be managed using different medications, including opioids, benzodiazepines, or a combination of both.

      For more detailed information, you can refer to the NICE guidance on the care of dying adults in the last days of life. https://www.nice.org.uk/guidance/ng31

    • This question is part of the following fields:

      • Palliative & End Of Life Care
      15.8
      Seconds
  • Question 25 - A 60 year old male presents to the emergency department complaining of palpitations...

    Correct

    • A 60 year old male presents to the emergency department complaining of palpitations and a headache. The patient appears distressed and is observed to be trembling and sweating excessively. The patient has no regular medication and no significant medical history. The patient mentions experiencing similar episodes in the past few months, but none as severe as this one. The patient's vital signs are as follows:

      Blood pressure: 212/100 mmHg
      Pulse: 98 bpm
      Respiration: 16 bpm
      Oxygen saturations: 97% on room air

      What is the most likely diagnosis?

      Your Answer: Phaeochromocytoma

      Explanation:

      Phaeochromocytoma is characterized by certain clinical features, including paroxysmal hypertension, palpitations, headache, tremor, and profuse sweating. This patient exhibits paroxysmal symptoms that align with phaeochromocytoma, such as high blood pressure (systolic readings exceeding 220 mmHg are common), headache, sweating, and feelings of anxiety and fear. It is important to note that individuals with conditions like congenital adrenal hyperplasia, diabetes insipidus, and Addisonian crisis typically experience low blood pressure.

      Further Reading:

      Phaeochromocytoma is a rare neuroendocrine tumor that secretes catecholamines. It typically arises from chromaffin tissue in the adrenal medulla, but can also occur in extra-adrenal chromaffin tissue. The majority of cases are spontaneous and occur in individuals aged 40-50 years. However, up to 30% of cases are hereditary and associated with genetic mutations. About 10% of phaeochromocytomas are metastatic, with extra-adrenal tumors more likely to be metastatic.

      The clinical features of phaeochromocytoma are a result of excessive catecholamine production. Symptoms are typically paroxysmal and include hypertension, headaches, palpitations, sweating, anxiety, tremor, abdominal and flank pain, and nausea. Catecholamines have various metabolic effects, including glycogenolysis, mobilization of free fatty acids, increased serum lactate, increased metabolic rate, increased myocardial force and rate of contraction, and decreased systemic vascular resistance.

      Diagnosis of phaeochromocytoma involves measuring plasma and urine levels of metanephrines, catecholamines, and urine vanillylmandelic acid. Imaging studies such as abdominal CT or MRI are used to determine the location of the tumor. If these fail to find the site, a scan with metaiodobenzylguanidine (MIBG) labeled with radioactive iodine is performed. The highest sensitivity and specificity for diagnosis is achieved with plasma metanephrine assay.

      The definitive treatment for phaeochromocytoma is surgery. However, before surgery, the patient must be stabilized with medical management. This typically involves alpha-blockade with medications such as phenoxybenzamine or phentolamine, followed by beta-blockade with medications like propranolol. Alpha blockade is started before beta blockade to allow for expansion of blood volume and to prevent a hypertensive crisis.

    • This question is part of the following fields:

      • Endocrinology
      13.7
      Seconds
  • Question 26 - A 45-year-old patient presents with frequent bruising and recurrent nosebleeds. She informs you...

    Incorrect

    • A 45-year-old patient presents with frequent bruising and recurrent nosebleeds. She informs you that she has a rare platelet disorder and provides you with her outpatient letter from the hematology department, which includes details about the condition. According to the letter, her disorder is attributed to decreased levels of glycoprotein IIb/IIIa.
      What is the MOST LIKELY diagnosis for this patient?

      Your Answer: Von Willebrand disease

      Correct Answer: Glanzmann’s thrombasthenia

      Explanation:

      Glanzmann’s thrombasthenia is an uncommon condition affecting platelets, where they have a deficiency or abnormality in glycoprotein IIb/IIIa. This disorder leads to platelet dysfunction and can result in various complications.

    • This question is part of the following fields:

      • Haematology
      14.9
      Seconds
  • Question 27 - A 45-year-old woman presents with a history of severe migraines. This morning's episode...

    Correct

    • A 45-year-old woman presents with a history of severe migraines. This morning's episode was similar to previous ones in that it occurred around her right temple and was so intense that she felt like hitting her head to try and distract from the pain. Further questioning and examination lead you to conclude that she is suffering from cluster headaches.

      Which of the following is NOT an effective treatment for cluster headaches?

      Your Answer: Oral codeine phosphate

      Explanation:

      Standard pain relievers are generally not effective in treating cluster headaches. They take too long to work, and by the time they start to relieve the pain, the headache has usually already gone away. It is not recommended to use opioids for cluster headaches as they may actually make the headaches worse, and using them for a long time can lead to dependency.

      However, there are other options that can be effective in treating cluster headaches. One option is to use subcutaneous sumatriptan, which is a medication that works by stimulating a specific receptor in the brain. This can help reduce the inflammation in the blood vessels that is associated with migraines and cluster headaches. Most people find that subcutaneous sumatriptan starts to work within 10-15 minutes of being administered.

      Another option is to use zolmitriptan nasal spray, which is also a medication that works in a similar way to sumatriptan. However, it may take a bit longer for the nasal spray to start working compared to the subcutaneous injection.

      In addition to medication, high-flow oxygen can also be used as an alternative therapy for cluster headaches. This involves breathing in oxygen at a high flow rate, which can help relieve the pain and other symptoms of a cluster headache.

      Lastly, octreotide can be administered subcutaneously and has been shown to be more effective than a placebo in treating acute cluster headache attacks.

    • This question is part of the following fields:

      • Neurology
      12.7
      Seconds
  • Question 28 - A 45-year-old individual presents with a swollen and painful left knee. The symptoms...

    Incorrect

    • A 45-year-old individual presents with a swollen and painful left knee. The symptoms started three days ago. There is no history of any injury, and a joint aspirate is sent for laboratory analysis. The aspirate reveals the presence of pus cells, positively birefringent crystals, and no organisms.
      What is the SINGLE most probable diagnosis?

      Your Answer: Gout

      Correct Answer: Pseudogout

      Explanation:

      Gout and pseudogout are both characterized by the presence of crystal deposits in the joints that are affected. Gout occurs when urate crystals are deposited, while pseudogout occurs when calcium pyrophosphate crystals are deposited. Under a microscope, these crystals can be distinguished by their appearance. Urate crystals are needle-shaped and negatively birefringent, while calcium pyrophosphate crystals are brick-shaped and positively birefringent.

      Gout can affect any joint in the body, but it most commonly manifests in the hallux metatarsophalangeal joint, which is the joint at the base of the big toe. This joint is affected in approximately 50% of gout cases. On the other hand, pseudogout primarily affects the larger joints, such as the knee.

    • This question is part of the following fields:

      • Musculoskeletal (non-traumatic)
      10.3
      Seconds
  • Question 29 - A 9-year-old girl comes in with a painful, red, swollen right eye. She...

    Correct

    • A 9-year-old girl comes in with a painful, red, swollen right eye. She recently had a sinus infection but has no other significant medical history. Her temperature is 38.2°C. She experiences pain when moving her eye and complains of seeing double.
      What ONE clinical feature would be most helpful in differentiating between orbital and peri-orbital cellulitis?

      Your Answer: Red desaturation

      Explanation:

      Peri-orbital cellulitis, also known as preseptal cellulitis, is an infection that affects the eyelid and the skin surrounding the eye in front of the orbital septal. On the other hand, orbital cellulitis is a medical emergency that occurs when there is an infection in the tissues of the eye located behind the orbital septum.

      The most common organisms that cause these infections include Streptococcus pneumoniae, Staphylococcus aureus, Streptococcus pyogenes, and Haemophilus influenzae.

      Peri-orbital cellulitis may present with various symptoms, such as swelling of the eyelid, redness around the eye, discharge, difficulty closing the eye, conjunctival injection, mild fever, teary eyes, and discomfort.

      To distinguish orbital cellulitis from peri-orbital cellulitis, it is important to look out for additional symptoms, including pain when moving the eye, protrusion of the eye (proptosis), redness of the eye (red desaturation), vision loss, eye muscle paralysis (ophthalmoplegia), double vision (diplopia), and optic nerve damage (optic neuropathy). These symptoms indicate a more severe condition that requires immediate medical attention.

    • This question is part of the following fields:

      • Ophthalmology
      7
      Seconds
  • Question 30 - A 37 year old woman presents to the emergency department with complaints of...

    Incorrect

    • A 37 year old woman presents to the emergency department with complaints of headache, profuse sweating, and heart palpitations. Upon examination, her blood pressure is measured at 228/114 mmHg. The possibility of phaeochromocytoma crosses your mind. Where do phaeochromocytomas typically originate within the adrenal tissue?

      Your Answer: Zona fasciculata

      Correct Answer: Medulla

      Explanation:

      Phaeochromocytoma is a rare neuroendocrine tumor that secretes catecholamines. It typically arises from chromaffin tissue in the adrenal medulla, but can also occur in extra-adrenal chromaffin tissue. The majority of cases are spontaneous and occur in individuals aged 40-50 years. However, up to 30% of cases are hereditary and associated with genetic mutations. About 10% of phaeochromocytomas are metastatic, with extra-adrenal tumors more likely to be metastatic.

      The clinical features of phaeochromocytoma are a result of excessive catecholamine production. Symptoms are typically paroxysmal and include hypertension, headaches, palpitations, sweating, anxiety, tremor, abdominal and flank pain, and nausea. Catecholamines have various metabolic effects, including glycogenolysis, mobilization of free fatty acids, increased serum lactate, increased metabolic rate, increased myocardial force and rate of contraction, and decreased systemic vascular resistance.

      Diagnosis of phaeochromocytoma involves measuring plasma and urine levels of metanephrines, catecholamines, and urine vanillylmandelic acid. Imaging studies such as abdominal CT or MRI are used to determine the location of the tumor. If these fail to find the site, a scan with metaiodobenzylguanidine (MIBG) labeled with radioactive iodine is performed. The highest sensitivity and specificity for diagnosis is achieved with plasma metanephrine assay.

      The definitive treatment for phaeochromocytoma is surgery. However, before surgery, the patient must be stabilized with medical management. This typically involves alpha-blockade with medications such as phenoxybenzamine or phentolamine, followed by beta-blockade with medications like propranolol. Alpha blockade is started before beta blockade to allow for expansion of blood volume and to prevent a hypertensive crisis.

    • This question is part of the following fields:

      • Endocrinology
      8.2
      Seconds

SESSION STATS - PERFORMANCE PER SPECIALTY

Sexual Health (1/1) 100%
Respiratory (2/3) 67%
Musculoskeletal (non-traumatic) (0/2) 0%
Haematology (2/3) 67%
Trauma (0/1) 0%
Mental Health (0/1) 0%
Pharmacology & Poisoning (0/1) 0%
Nephrology (0/2) 0%
Endocrinology (1/3) 33%
Environmental Emergencies (0/1) 0%
Gastroenterology & Hepatology (0/3) 0%
Infectious Diseases (1/1) 100%
Obstetrics & Gynaecology (1/1) 100%
Dermatology (0/2) 0%
Ear, Nose & Throat (1/2) 50%
Palliative & End Of Life Care (1/1) 100%
Neurology (1/1) 100%
Ophthalmology (1/1) 100%
Passmed