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  • Question 1 - Which selective serotonin reuptake inhibitors listed below has the highest incidence of discontinuation...

    Incorrect

    • Which selective serotonin reuptake inhibitors listed below has the highest incidence of discontinuation symptoms?

      Your Answer: Fluoxetine

      Correct Answer: Paroxetine

      Explanation:

      A couple of papers written by the same authors indicate that children and adolescents taking an SSRI definitely experience discontinuation reactions that can be mild, moderate or severe when the medication is stopped suddenly or high doses are reduced substantially. Among the SSRIs paroxetine seems to be the worst offender and fluoxetine the least while sertraline and fluvoxamine tend to be intermediate. The rate of discontinuation syndrome varies with the particular SSRI involved. It is generally quoted as 25% but is higher for SSRIs with shorter half-lives. Paroxetine has been associated with more frequent discontinuation symptoms than the other SSRIs.

      The use of fluoxetine with its long half-life appears safer in this respect than paroxetine and venlafaxine causing the most concerns.

      Paroxetine has the shortest half-life with 21 hours of all listed SSRIs and as such it would be expected to have a higher incidence or severity (greater number of symptoms) and fluoxetine would have the least since it has a half life of 96 hours. Citalopram has a half-life of 35 hours while escitalopram has a half-life of 30 hours.

      The most common symptoms reported are: dizziness, light-headedness, drowsiness, poor concentration, nausea, headache and fatigue.
      Another common symptom in adults is paraesthesia described as burning, tingling, numbness or electric shock feelings usually in the upper half of the body or proximal lower limbs.

    • This question is part of the following fields:

      • Psychiatry
      10.9
      Seconds
  • Question 2 - Which one of the following statements regarding minimal change glomerulonephritis is incorrect? ...

    Incorrect

    • Which one of the following statements regarding minimal change glomerulonephritis is incorrect?

      Your Answer: The majority of cases are steroid responsive

      Correct Answer: Hypertension is found in approximately 25% of patients

      Explanation:

      Hypertension and haematuria are not common presentations in minimal change glomerulonephritis, all other statements are correct.

    • This question is part of the following fields:

      • Nephrology
      14.8
      Seconds
  • Question 3 - A 57-year-old school teacher is found to have abnormal liver function tests at...

    Incorrect

    • A 57-year-old school teacher is found to have abnormal liver function tests at a health screening. Other than tiredness and occasional gritty eyes that she attributes to age, she is well. She is postmenopausal and takes hormone replacement therapy (HRT) but no other medication. She smokes 12 cigarettes per day but takes no alcohol. There is nothing to find on examination. Some of her blood results are shown below: Albumin 40 g/l (37–49) Alanine aminotransferase(ALT) 14 U/l (5–35) Alkaline Phosphatase 300 U/l (45–105) AMA positive >1:40 Anti-dsDNA weakly positive Bilirubin 12 μmol/l (1–22) High-density lipoprotein (HDL) cholesterol 4.0 mmol/l (>1.55) Liver–kidney microsomal antibody (anti-LKM) negative Liver transaminase (AST) 10 U/l (1–31) Low-density lipoprotein (LDL) cholesterol 4.0 mmol/l (<3.36) Plasma thromboplastin (PT) 12 s (11.5–15.5) Smooth muscle antibody (SMA) negative Which of the following would be an appropriate next step?

      Your Answer: Liver biopsy

      Correct Answer: Ursodeoxycholic acid

      Explanation:

      The patient is AMA+ and weakly + for anti-dsDNA, suggesting an autoimmune process. She also has gritty eyes, which makes you think Sjogren’s syndrome. She has an elevated ALP and normal AST/ ALT. All of these factors, in addition to her middle age and the fact that she is a woman, make the diagnosis of primary biliary cirrhosis (PBC) most likely. It is associated with conditions (autoimmune) such as Sjogren’s syndrome. The treatment for this disease initially is ursodeoxycholic acid. Liver transplantation is the definitive treatment for end-stage disease.

    • This question is part of the following fields:

      • Gastroenterology
      34.8
      Seconds
  • Question 4 - A 56 year old woman taking procainamide develops drug induced erythematosus. Which of...

    Correct

    • A 56 year old woman taking procainamide develops drug induced erythematosus. Which of the following features is the most characteristic of this condition?

      Your Answer: It may occur with chlorpromazine

      Explanation:

      Drug induced lupus is usually positive for antinuclear and antihistone antibodies, typically without renal or neurologic involvement. However, pulmonary involvement is common. Drugs that can induce lupus include isoniazid, hydralazine, procainamide, chlorpromazine, and other anticonvulsants.

    • This question is part of the following fields:

      • Rheumatology
      8.9
      Seconds
  • Question 5 - A patient who has recently been diagnosed with SLE undergoes serum testing. A...

    Correct

    • A patient who has recently been diagnosed with SLE undergoes serum testing. A rise in which of the following antibodies would indicate severe systemic involvement?

      Your Answer: Anti double-stranded DNA antibodies

      Explanation:

      Anti ds-DNA antibodies are very specific for SLE and their presence most often indicates systemic spread of the disease. These antibodies are present in about 30 percent of the total cases of SLE.

    • This question is part of the following fields:

      • Rheumatology
      13.2
      Seconds
  • Question 6 - An 86-year-old male patient has been diagnosed with monoclonal gammopathy of undetermined significance....

    Correct

    • An 86-year-old male patient has been diagnosed with monoclonal gammopathy of undetermined significance. He is eager to know its relation to his future health. Which of the following statements is correct?

      Your Answer: 10% of patients with MGUS go on to develop myeloma over 10 years

      Explanation:

      Monoclonal gammopathy of undetermined significance (MGUS, also known as benign paraproteinemia and monoclonal gammopathy) is a pre-malignant condition not necessarily leading to its malignant form—multiple myeloma. Around 10% of patients eventually develop myeloma over 10 years, with 50% at 15 years. MGUS causes paraproteinemia and is usually asymptomatic. It is not associated with ostealgia or increased risk of infections. It is often mistaken for multiple myeloma, differing from the latter in, no immunosuppression, normal levels of beta-2 microglobulin, and stable lower levels of paraproteinemia.

    • This question is part of the following fields:

      • Haematology & Oncology
      16.7
      Seconds
  • Question 7 - A 20 year old woman presents to the hospital with sharp, left-sided chest...

    Correct

    • A 20 year old woman presents to the hospital with sharp, left-sided chest pain and shortness of breath. On examination her pulse is 101 beats per minute and blood pressure is 124/61 mmHg. She is seen to be mildly breathless at rest but her oxygen saturation on air was 98%. CXR reveals a left pneumothorax with a 4 cm rim of air visible. Which management strategy is appropriate in this patient?

      Your Answer: Needle aspiration

      Explanation:

      Pneumothorax is defined as air in the pleural space and may be classified as spontaneous, traumatic or iatrogenic. Primary spontaneous pneumothorax occurs in patients without clinically apparent lung disease.
      Primary pneumothorax has an incidence of 18-28 per 100,000 per year for men and 1.2-6 per 100,000 per year for women. Most patients present with ipsilateral pleuritic chest pain and acute shortness of breath. Shortness of breath is largely dependent on the size of the pneumothorax and whether there is underlying chronic lung disease.

      Young patients may have chest pain only. Most episodes of pneumothorax occur at rest. Symptoms may resolve within 24 hours in patients with primary spontaneous pneumothorax. The diagnosis of a pneumothorax is confirmed by finding a visceral pleural line displaced from the chest wall, without distal lung markings, on a posterior-anterior chest radiograph.

      Breathless patients should not be left without intervention regardless of the size of pneumothorax. If there is a rim of air >2cm on the chest X-ray, this should be aspirated.
      Aspiration is successful in approximately 70 per cent of patients; the patient may be discharged subsequently. A further attempt at aspiration is recommended if the patient remains symptomatic and a volume of less than 2.5 litres has been aspirated on the first attempt.

      If unsuccessful, an intercostal drain is inserted. This may be removed after 24 hours after full re-expansion or cessation of air leak without clamping and discharge may be considered.

    • This question is part of the following fields:

      • Respiratory
      17.1
      Seconds
  • Question 8 - A 9-year-old girl complains of perioral blisters and a burning sensation of her...

    Incorrect

    • A 9-year-old girl complains of perioral blisters and a burning sensation of her face. Some of the blisters are crusted and some are weeping. What is the most likely diagnosis?

      Your Answer: Acne

      Correct Answer: Impetigo

      Explanation:

      Impetigo appears more commonly on the face than other exposed areas like the limbs. Its blisters are clustered and may have a fluid discharge.

    • This question is part of the following fields:

      • Dermatology
      2.8
      Seconds
  • Question 9 - A 35 year old female, known case of anti phospholipid syndrome, arrives at...

    Correct

    • A 35 year old female, known case of anti phospholipid syndrome, arrives at the clinic due to a swollen and painful left leg. Doppler ultrasonography confirms the diagnosis of a deep vein thrombosis. She was previously diagnosed with DVT 4 months back and was on warfarin therapy (target INR 2-3) when it occurred. How should her anticoagulation be managed?

      Your Answer: Life-long warfarin, increase target INR to 3 - 4

      Explanation:

      If the INR in the range of 2-3 has still resulted in thrombosis, the target INR is increased to 3-4. However, because the risk of bleeding increases as the INR rises, the INR is closely monitored and adjustments are made as needed to maintain the INR within the target range.

    • This question is part of the following fields:

      • Rheumatology
      10.5
      Seconds
  • Question 10 - A 50-year-old woman was investigated following an osteoporotic hip fracture. The following results...

    Correct

    • A 50-year-old woman was investigated following an osteoporotic hip fracture. The following results are obtained: TSH < 0.05 mu/l, Free T4 29 pmol/L. Which of the following autoantibodies is most likely to be present?

      Your Answer: TSH receptor stimulating autoantibodies

      Explanation:

      The patient has hyperthyroidism and its most common cause is Grave’s Disease.
      Grave’s Disease is an autoimmune disease due to circulating autoantibodies known as TSH receptor stimulating autoantibodies or Thyroid-stimulating immunoglobulins (TSIs) that bind to and activate thyrotropin receptors, causing the thyroid gland to grow and the thyroid follicles to increase the synthesis of thyroid hormone.

    • This question is part of the following fields:

      • Endocrinology
      11.8
      Seconds

SESSION STATS - PERFORMANCE PER SPECIALTY

Psychiatry (0/1) 0%
Nephrology (0/1) 0%
Gastroenterology (0/1) 0%
Rheumatology (3/3) 100%
Haematology & Oncology (1/1) 100%
Respiratory (1/1) 100%
Dermatology (0/1) 0%
Endocrinology (1/1) 100%
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