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  • Question 1 - A 60-year-old male smoker and a known hypertensive presented with central chest pain...

    Correct

    • A 60-year-old male smoker and a known hypertensive presented with central chest pain radiating to the back. On examination he was tachycardic and hypotensive. His ECG showed inferior ST elevation and his transoesophageal echocardiogram showed a double lumen in the ascending aorta. Which of the following is the most probable diagnosis?

      Your Answer: Dissecting aortic aneurysm

      Explanation:

      The classic history in this high risk patient is suggestive of a dissecting aortic aneurysm. His transoesophageal echocardiogram confirms the diagnosis. ST elevation in ECG is probably due to the extension of the dissection of the aorta which results in compromised coronary blood supply.

    • This question is part of the following fields:

      • Cardiovascular System
      42.9
      Seconds
  • Question 2 - A 32-year-old man complains of fever, rash and photophobia. The physician suspects this...

    Correct

    • A 32-year-old man complains of fever, rash and photophobia. The physician suspects this to be a case of meningitis. Which of the following medication would be ideally used in this patient?

      Your Answer: Cefotaxime

      Explanation:

      Broad-spectrum cephalosporins, especially cefotaxime and ceftriaxone, are widely used in the treatment of suspected pneumococcal meningitis and are considered the treatment of choice for meningitis caused by partially penicillin-resistant pneumococcal strains.

    • This question is part of the following fields:

      • Pharmacology
      12.7
      Seconds
  • Question 3 - A 75-year-old gentleman sustained an injury to his arm after falling on outstretched...

    Incorrect

    • A 75-year-old gentleman sustained an injury to his arm after falling on outstretched hands. An X-ray confirms the fracture of the distal radius with backward shift of the distal fragment. The name given to this kind of deformity is?

      Your Answer: Garden spade deformity

      Correct Answer: Dinner fork deformity

      Explanation:

      Dinner fork deformity is the name given to the fracture of distal radius, in which the distal fragment is dorsally angulated, displaced and sometimes impacted. Coxa vara is the hip deformity when angle between the head and shaft of the femur is reduced to more than 120 degree. A garden fork deformity is a reversed Colles fracture.

    • This question is part of the following fields:

      • Musculoskeletal System
      19.6
      Seconds
  • Question 4 - In a patient with cardiomyopathy, which one of the following statements would be...

    Correct

    • In a patient with cardiomyopathy, which one of the following statements would be aetiologically significant?

      Your Answer: The presence of diabetes mellitus in a tanned patient

      Explanation:

      Hemochromatosis is a condition that leads to abnormal iron deposition in specific organs. There are two main types: primary (hereditary) and secondary (e.g., transfusion-related). The most common form is hereditary autosomal recessive hemochromatosis type 1, which is caused by an underlying genetic defect that results in partially uninhibited absorption of iron in the small intestine.
      Hemochromatosis is mostly asymptomatic but can become symptomatic, usually between the third and fifth decade of life, when poisonous levels of iron have had time to accumulate in the body. Symptoms include fatigue, hyperpigmentation, diabetes mellitus (bronze diabetes), and arthralgia. The deposits may lead to various organ diseases, the most typical being the development of liver cirrhosis, which is accompanied by an increased risk of hepatocellular carcinoma (HCC). Serum ferritin and transferrin saturation levels are typically elevated. Molecular genetic testing or a liver biopsy may be used to confirm the diagnosis. Treatment primarily consists of repeated phlebotomy to reduce iron levels. In addition, dietary changes and drug therapy (chelating agents such as deferoxamine) may be used to influence the amount of iron in the body.

    • This question is part of the following fields:

      • Cardiovascular System
      31.9
      Seconds
  • Question 5 - A 70-year-old male patient presented with chronic congestive heart failure. Which of the...

    Correct

    • A 70-year-old male patient presented with chronic congestive heart failure. Which of the following is the most important factor to consider when prescribing drugs for this patient?

      Your Answer: Administration of a B-blocker reduces the time spent in hospital

      Explanation:

      It is proven that spironolactone has survival benefits and loop diuretics only give symptomatic relief. Beta blockers are however, known to improve exercise tolerance, left ventricular function and reduce symptoms. They also reduce the mortality associated with heart failure. So administration of beta blockers will reduce the time spent in hospital by improving symptoms.

    • This question is part of the following fields:

      • Cardiovascular System
      29.2
      Seconds
  • Question 6 - A 15-year-old girl presents with vomiting and her investigations show:

    Sodium 115 mmol/L (137-144)
    Potassium...

    Correct

    • A 15-year-old girl presents with vomiting and her investigations show:

      Sodium 115 mmol/L (137-144)
      Potassium 3.0 mmol/L (3.5-4.9)
      Urea 2.1 mmol/L (2.5-7.5)
      Urine sodium 2 mmol/L
      Urine osmolality 750 mosmol/kg (350-1000)

      What is the most likely diagnosis?

      Your Answer: Bulimia nervosa

      Explanation:

      The patient is most likely to have Bulimia nervosa. A young girl with a low body mass contributes to the low urea. Hypokalaemia and hyponatraemia are due to vomiting. Her urine sodium is also low.
      – In Addison’s diseases, there are low levels of sodium and high levels of potassium in the blood. In acute adrenal crisis: The most consistent finding is elevated blood urea nitrogen (BUN) and creatinine. Urinary and sweat sodium also may be elevated.
      – In Syndrome of Inappropriate Antidiuretic Hormone Secretion (SIADH) there is hyponatremia with corresponding hypo-osmolality, continued renal excretion of sodium, urine less than maximally dilute and absence of clinical evidence of volume depletion.

    • This question is part of the following fields:

      • Endocrine System & Metabolism
      8.9
      Seconds
  • Question 7 - A 77-year-old mail carrier presents to the emergency department with severe flinging movements...

    Incorrect

    • A 77-year-old mail carrier presents to the emergency department with severe flinging movements of his right arm. Where would the causative lesion be located?

      Your Answer: Globus pallidus

      Correct Answer: Right subthalamic nucleus

      Explanation:

      Hemiballismus is a movement disorder which manifests as unilateral involuntary flinging movements of the proximal upper limbs. The lesion is located in the ipsilateral subthalamic nucleus.

    • This question is part of the following fields:

      • Nervous System
      6.9
      Seconds
  • Question 8 - Which one of the following is least associated with photosensitivity? ...

    Correct

    • Which one of the following is least associated with photosensitivity?

      Your Answer: Acute intermittent porphyria

      Explanation:

      Sunlight, especially its ultraviolet radiation component, can cause increased or additional types of damage in predisposed individuals, such as those taking certain phototoxic drugs, or those with certain conditions associated with photosensitivity, including:
      – Psoriasis
      – Atopic eczema
      – Erythema multiforme
      – Seborrheic dermatitis
      – Autoimmune bullous diseases (immunobullous diseases)
      – Mycosis fungoides
      – Smith-Lemli-Opitz syndrome
      – Porphyria cutanea tarda
      Also, many conditions are aggravated by strong light, including:
      – Systemic lupus erythematosus
      – Sjögren’s syndrome
      – Sinear Usher syndrome
      – Rosacea
      – Dermatomyositis
      – Darier’s disease
      – Kindler-Weary syndrome
      Acute intermittent porphyria (AIP) belongs to the group inborn errors of metabolism and most patients with AIP are not light sensitive.

    • This question is part of the following fields:

      • The Skin
      16.1
      Seconds
  • Question 9 - A 28-year-old female with a history of psoriatic arthritis would most likely have...

    Incorrect

    • A 28-year-old female with a history of psoriatic arthritis would most likely have which of the following hand conditions?

      Your Answer: Arthritis mutilans

      Correct Answer: Nail dystrophy

      Explanation:

      Nail dystrophy (pitting of nails, onycholysis, subungual hyperkeratosis), dactylitis, sausage shaped fingers are most commonly seen with psoriatic arthropathy. There is asymmetric joint involvement most commonly distal interphalangeal joints. Uveitis and sacroiliitis may also occur. Arthritis mutilans may occur but is very rare. Cutaneous lesions may or may not develop. When they do, its usually much after the symptoms of arthritis.

    • This question is part of the following fields:

      • Musculoskeletal System
      14.5
      Seconds
  • Question 10 - A 55-year-old woman admitted to the hospital with her third urinary tract infection...

    Correct

    • A 55-year-old woman admitted to the hospital with her third urinary tract infection in as many months. She has type-2 diabetes and started Empagliflozin (a sodium glucose co-transporter 2 inhibitor) 4 months ago. You suspect recurrent urinary tract infections secondary to her empagliflozin.
      Where is the main site of action of the drug?

      Your Answer: Early proximal convoluted tubule

      Explanation:

      Selective sodium-glucose transporter-2 (SGLT2) is expressed in the proximal renal tubules and is responsible for the majority of the reabsorption of filtered glucose from the tubular lumen.
      Empagliflozin; SGLT2 inhibitors reduce glucose reabsorption and lower the renal threshold for glucose, thereby increasing urinary glucose excretion, thus increasing the risk of urinary tract infections.

    • This question is part of the following fields:

      • Endocrine System & Metabolism
      10.6
      Seconds

SESSION STATS - PERFORMANCE PER SPECIALTY

Cardiovascular System (3/3) 100%
Pharmacology (1/1) 100%
Musculoskeletal System (0/2) 0%
Endocrine System & Metabolism (2/2) 100%
Nervous System (0/1) 0%
The Skin (1/1) 100%
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