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  • Question 1 - A 16-year-old boy is brought to the ER by his friends. He fell...

    Incorrect

    • A 16-year-old boy is brought to the ER by his friends. He fell off his quad bike while riding it at a high speed. He complains of neck pain and paraesthesia in his limbs. On examination, there are multiple bleeding contusions on the body. There is a handlebar bruise on his chest. And oxygen saturations are low, but heart rate is normal. Which of the following is the most likely causing his shock?

      Your Answer: Cardiogenic

      Correct Answer: Neurogenic

      Explanation:

      Neurogenic shock is a devastating consequence of spinal cord injury (SCI), also known as vasogenic shock. Injury to the spinal cord results in sudden loss of sympathetic tone, which leads to the autonomic instability that is manifested in hypotension, bradyarrhythmia, and temperature dysregulation. Spinal cord injury is not to be confused with spinal shock, which is a reversible reduction in sensory and motor function following spinal cord injury. Neurogenic shock is associated with cervical and high thoracic spine injury. Early identification and aggressive management are vital in neurogenic shock to prevent secondary spinal injury.

    • This question is part of the following fields:

      • Emergency Medicine
      27.1
      Seconds
  • Question 2 - A 6 year old boy has been taken to his local hospital for...

    Correct

    • A 6 year old boy has been taken to his local hospital for his third sore throat in one month. Doctors have discovered bleeding from his gums and nose. He is also presenting with pale conjunctiva. From the list of options, what is the single cell type most likely to be seen on microscopy?

      Your Answer: Blast cells

      Explanation:

      Many of the symptoms favour blast cells: the patient’s young age| a reoccurring sore throat caused by neutropenia and abnormal lymphoblasts| pale conjunctiva due to reduced production of red blood cells (this is because the marrow has been occupied by blast cells). There are no risk factors present for aplastic anaemia, and congenital aplastic anaemia would present itself earlier in life. A bone marrow aspiration would be needed to confirm the diagnosis.

    • This question is part of the following fields:

      • ENT
      33.3
      Seconds
  • Question 3 - A 15-year-old girl was diagnosed with bacterial meningitis. Gram staining of the spinal...

    Correct

    • A 15-year-old girl was diagnosed with bacterial meningitis. Gram staining of the spinal fluid shows numerous polymorphonuclear neutrophils and Gram-positive cocci. Which is the empiric drug of choice to be given to the patient until the antibiotic sensitivity report is available?

      Your Answer: Methicillin

      Explanation:

      Bacterial meningitis (including meningococcal meningitis, Haemophilus influenzae meningitis, and staphylococcal meningitis) is a neurologic emergency that is associated with significant morbidity and mortality. Initiation of empiric antibacterial therapy is therefore essential for better outcomes. The patient appears to be suffering from meningitis caused by Staphylococcus aureus. Methicillin would be the drug of choice . It is bactericidal and unlike streptomycin and chloramphenicol it is not associated with toxicity

    • This question is part of the following fields:

      • Microbiology
      12.4
      Seconds
  • Question 4 - A clinical trial is conducted to study the benefits of a new oral...

    Incorrect

    • A clinical trial is conducted to study the benefits of a new oral medication to improve the symptoms of patients with asthma. In the trial 400 patients with asthma, half were given the new medication and half a placebo. Three months later they are asked to rate their symptoms using the following scale: much improved, slight improvement, no change, slight worsening, significantly worse. What is the most appropriate statistical test to see whether the new medication is beneficial?

      Your Answer: Chi-squared test

      Correct Answer: Mann-Whitney U test

      Explanation:

      The type of significance test used depends on whether the data is parametric (can be measured, usually normally distributed) or non-parametric.
      Parametric tests:
      Student’s t-test – paired or unpaired*
      Pearson’s product-moment coefficient – correlation

      Non-parametric tests:
      Mann-Whitney U test – unpaired data
      Wilcoxon signed-rank test – compares two sets of observations on a single sample
      chi-squared test – used to compare proportions or percentages
      Spearman, Kendall rank – correlation.

      The outcome measured is not normally distributed, i.e. it is non-parametric. This excludes the Student’s t-tests. We are not comparing percentages/proportions so the chi-squared test is excluded. The Mann–Whitney U test is a nonparametric test of the null hypothesis that it is equally likely that a randomly selected value from one sample will be less than or greater than a randomly selected value from a second sample.
      This test can be used to investigate whether two independent samples were selected from populations having the same distribution.

    • This question is part of the following fields:

      • Epidemiology And Statistics
      39.5
      Seconds
  • Question 5 - A 17-year-old female, who works at a day-care centre presents to the physician...

    Correct

    • A 17-year-old female, who works at a day-care centre presents to the physician with vomiting, joint pains, diarrhoea and crampy abdominal pain. Physical examination reveals a purpuric rash on her legs and over the belt area. She has microscopic haematuria, proteinuria and RBC casts on urine testing. Which of the underlying diagnoses is most likely in this case?

      Your Answer: Henoch–Schönlein purpura (HSP)

      Explanation:

      Henoch–Schönlein purpura (HSP), also known as IgA vasculitis, is a disease of the skin, mucous membranes, and sometimes other organs that most commonly affects children. In the skin, the disease causes palpable purpura (small, raised areas of bleeding underneath the skin), often with joint pain and abdominal pain. It is an acute immunoglobulin A (IgA)–mediated disorder. The tetrad of purpura, arthritis, kidney inflammation, and abdominal pain is often observed.

    • This question is part of the following fields:

      • Nephro-urology
      19.5
      Seconds
  • Question 6 - Which of the following is true of scabies? ...

    Incorrect

    • Which of the following is true of scabies?

      Your Answer: Burrows rather than granulomatous nodules are seen

      Correct Answer: The mite lives in the stratum corneum

      Explanation:

      Scabies is a dermatological condition caused by infestation of the Sarcoptes Scaibie. The tiny mite, often unseen by the naked human eye, is able to burrow into the stratum corneum where it lays its eggs, causing irritation and a rash related to the immune response against the mite and its eggs, saliva and faeces. On examination, the pathognomic small burrows are often seen on the skin along with small red papules and scratch marks| granulomatous nodules may also be seen especially in darker skin types. Other clinical subtypes such as bullous, and Norwegian (crusted) also exist. Common areas of infection include the hands, wrists, and the interdigital spaces. Infestation can also occur on the genital area, the buttocks, feet, ankles, flexor surfaces. First line treatment is with permethrin 5% dermal cream. It is important that all members of the household are also treated at the same time, and that contaminated bedding, clothes and furniture is adequately disinfected. Scabies is usually associated with overcrowded conditions.

    • This question is part of the following fields:

      • Dermatology
      19
      Seconds
  • Question 7 - A 15-year-old male presents complaining of gradually increasing fatigue. He says that he...

    Correct

    • A 15-year-old male presents complaining of gradually increasing fatigue. He says that he turned vegan a year ago. He explains that he takes vitamin B12 supplements every day. Considering iron deficiency anaemia as a possible cause, you order some blood tests to confirm. Which of the following would increase the ability of the body to absorb dietary iron?

      Your Answer: Consuming iron in its ferrous (Fe2+) form

      Explanation:

      Consuming iron in its Fe2+ (ferrous form) form can improve the ability to absorb dietary iron in patients with iron deficiency anaemia (IDA). Clinical features of IDA include:- Koilonychia- Atrophic glossitis- Post-cricoid webs- Angular stomatitisThe peripheral blood smear shows the following abnormal RBC morphologies:- Target cells- Pencil poikilocytes- Microcytic-hypochromic cells

    • This question is part of the following fields:

      • Haematology And Oncology
      48.6
      Seconds
  • Question 8 - Which among the following neurological signs is likely to be present on examination...

    Correct

    • Which among the following neurological signs is likely to be present on examination following the successful administration of a median nerve block?

      Your Answer: Inability to abduct the thumb

      Explanation:

      Successful administration of median nerve block can be confirmed by the inability to abduct the thumb. The median nerve supplies all the muscles in the anterior compartment of the forearm, apart from the flexor carpi ulnaris and the flexor digitorum profundus to the outer two fingers: so these two fingers can still be flexed. There is a sensory loss to the thumb, index, middle and half of the ring fingers. Absence of thumb abduction due to paralysis of abductor pollicis brevis is a good test for median nerve paralysis.Other options:- The radial nerve supplies the extensors – hence wrist drop does not occur in this scenario. – The ulnar nerve supplies the skin of the ulnar side of the hand. Hence anaesthesia will not affect this area. – The ulnar nerve also supplies the interossei muscles of the hand, which affect abduction and adduction of the fingers.

    • This question is part of the following fields:

      • Anatomy
      22.1
      Seconds
  • Question 9 - A 16 year-old boy was stabbed in the right supraclavicular fossa. The sharp...

    Correct

    • A 16 year-old boy was stabbed in the right supraclavicular fossa. The sharp object punctured the portion of the parietal pleura that extends above the first rib. What is the name of this portion of the parietal pleura?

      Your Answer: Cupola

      Explanation:

      Endothoracic fascia: the connective tissue (fascia) that is between the costal parietal pleura and the inner wall of the chest wall.
      Costomediastinal recess: the point where the costal pleura becomes mediastinal pleura.
      Costodiaphragmatic recess: is the lowest point of the pleural sac where the costal pleura becomes diaphragmatic pleura.
      Cupola: the part of the parietal pleura that extends above the first rib level into the root of the neck.
      Costocervical recess: this is a made-up term.
      Peritracheal fascia: a layer of connective tissue that invests the trachea.

    • This question is part of the following fields:

      • Anatomy
      8.1
      Seconds
  • Question 10 - A 13-year-old girl presents with a rash in her lower limbs. The rash...

    Correct

    • A 13-year-old girl presents with a rash in her lower limbs. The rash appeared a few days after an upper respiratory infection and was associated with persistent haematuria. Renal biopsy revealed immunoglobulin G (IgG) glomerular immune deposits. What is the most probable diagnosis?

      Your Answer: Henoch-Schonlein purpura (HSP)

      Explanation:

      Immunoglobulin G (IgG) glomerular immune deposits are seen more commonly in HSP compared to IgA nephropathy.The presentation of the child is highly suggestive of Henoch-Schönlein purpura (HSP). It is an IgA-mediated, autoimmune hypersensitivity vasculitis that targets the small vessels of the skin, GI tract, kidneys, and joints.It is most commonly seen in children aged 3 – 6years and is twice as common in boys than girls. Preceding viral URTI with low-grade pyrexia is common. The most common organism associated with HSP is, however, Group A streptococcal infection A.A purpuric rash is seen on the back of the legs and buttocks and can less frequently, affect the arms. Arthralgia is common (usually knees/ankles) in these patients. Abdominal pain and bloody diarrhoea may occur. And half of the children with HSP have renal involvement. Rarely, it can lead to end-stage renal failure.Treatment includes adequate hydration, occasionally steroids, and other immunosuppressants. The disease can recur in 1 in 3 children.

    • This question is part of the following fields:

      • Nephro-urology
      12.4
      Seconds
  • Question 11 - Which is not a variation of lichen planus? ...

    Incorrect

    • Which is not a variation of lichen planus?

      Your Answer: Planopilaris

      Correct Answer: Sclerotic

      Explanation:

      The clinical presentation of lichen planus has several variations, as follows:- Hypertrophic lichen planus- Atrophic lichen planus- Erosive/ulcerative lichen planus- Follicular lichen planus (lichen planopilaris)- Annular lichen planus- Linear lichen planus- Vesicular and bullous lichen planus- Actinic lichen planus- Lichen planus pigmentosus- Lichen planus pemphigoides

    • This question is part of the following fields:

      • Dermatology
      9.9
      Seconds
  • Question 12 - A 16-year-old man presents with fever and extensive pre-auricular swelling on the right...

    Correct

    • A 16-year-old man presents with fever and extensive pre-auricular swelling on the right side of his face. However, tenderness is present bilaterally. He also complains of acute pain and otalgia on the right aspect of the face. What is the most likely diagnosis?

      Your Answer: Mumps

      Explanation:

      Mumps presents with a prodromal phase of general malaise and fever. On examination there is usually painful parotid swelling which has high chances of becoming bilateral. In OM with effusion there are no signs of infection and the only symptom is usually hearing loss. Acute otitis externa produces otalgia as well as ear discharge and itching. Acute OM produces otalgia and specific findings upon otoscopy. In acute mastoiditis the patient experiences ear discharge, otalgia, headache, hearing loss and other general signs of inflammation.

    • This question is part of the following fields:

      • Infectious Diseases
      16.9
      Seconds
  • Question 13 - This equation links lung function measurement to height: Lung function = 2.3 +...

    Correct

    • This equation links lung function measurement to height: Lung function = 2.3 + (1.5 × height), R = 0.75Which of the following statements is true?

      Your Answer: Taller individuals have higher lung functions

      Explanation:

      The equation, lung function = 3.2 + (1.7 x height) is linear, but this does not necessarily mean that the relationship itself is linear. The equation is able to predict that taller individuals are more likely to have greater lung functions. No information is given on whether the coefficients and the R value are statistically significant.

    • This question is part of the following fields:

      • Epidemiology And Statistics
      7.3
      Seconds
  • Question 14 - A 5 month old boy presents with pallor but otherwise appears well and...

    Correct

    • A 5 month old boy presents with pallor but otherwise appears well and healthy. The clinical examination was normal and his mother reported a good appetite. His blood results showed: Hb: 9.0 g/dl (11 – 16 g/dl)MCV: 66fl (76 – 96 fl)WBC : 5x109/L (4 – 11x109/L)Ferritin : 9ug/L (12 – 200ug/L)Serum iron : 7umol/l (14 – 31umol/l)What is the most likely diagnosis?

      Your Answer: Iron deficiency anaemia

      Explanation:

      Iron deficiency anaemia has the following laboratory characteristics: low haemoglobin, a low serum iron, a low serum ferritin, a low transferrin saturation, and a high total iron-binding capacity.

    • This question is part of the following fields:

      • Nutrition
      53.6
      Seconds
  • Question 15 - Which of these developmental milestones would be advanced for a 3-year-old? ...

    Incorrect

    • Which of these developmental milestones would be advanced for a 3-year-old?

      Your Answer: Balancing on one foot

      Correct Answer: Doing up buttons unaided

      Explanation:

      3-year-old milestones:Social and Emotional:- Copies adults and friends – Shows affection for friends without prompting – Takes turns in games – Shows concern for crying friend – Understands the idea of “mine” and “his” or “hers” – Shows a wide range of emotions – Separates easily from mom and dad – May get upset with major changes in routine- Dresses and undresses self Language/Communication- Follows instructions with 2 or 3 steps – Can name most familiar things – Understands words like “in,” “on,” and “under” – Says first name, age, and sex- Names a friend – Says words like “I,” “me,” “we,” and “you” and some plurals (cars, dogs, cats) – Talks well enough for strangers to understand most of the time – Carries on a conversation using 2 to 3 sentencesCognitive (learning, thinking, problem-solving)- Can work toys with buttons, levers, and moving parts – Plays make-believe with dolls, animals, and people – Does puzzles with 3 or 4 pieces – Understands what “two” means – Copies a circle with a pencil or crayon – Turns book pages one at a time – Builds towers of more than 6 blocks – Screws and unscrews jar lids or turns the door handleMovement/Physical Development- Climbs well – Runs easily – Pedals a tricycle (3-wheel bike) – Walks up and downstairs, one foot on each stepDoing up buttons is a skill more usually seen in 5-year-olds.

    • This question is part of the following fields:

      • Child Development
      12.3
      Seconds
  • Question 16 - Advanced paternal age is a risk factor for which of the following diseases?...

    Incorrect

    • Advanced paternal age is a risk factor for which of the following diseases?

      Your Answer: Trisomy 13

      Correct Answer: Retinoblastoma

      Explanation:

      Advancing paternal age has been linked with lower quality sperm leading to a reduction in overall fertility and an increase in the occurrence of various medical disorders in the fetus. Advanced paternal age has been implicated as a risk factor for diseases like retinoblastoma, achondroplasia, autism spectrum disorders, schizophrenia, and acute lymphoblastic leukaemia. Down’s syndrome is mostly considered a consequence of advanced maternal age, but advanced paternal age has also been implicated as a risk factor.

    • This question is part of the following fields:

      • Genetics And Dysmorphology
      8.1
      Seconds
  • Question 17 - What is the optimal pressure to be used when providing inflation breaths to...

    Correct

    • What is the optimal pressure to be used when providing inflation breaths to a term new-born who is unable to breathe spontaneously?

      Your Answer: 30 cmH2O

      Explanation:

      According per the national guidelines, 5 inflation breaths should be given with a gas pressure of 30cmH2O for term babies. Each breath should be given for 2-3 seconds. Pre-term babies should be aerated with a lower pressure of 20-25cmH2O.

    • This question is part of the following fields:

      • Neonatology
      16.4
      Seconds
  • Question 18 - An 8-year-old boy is presented with arthritis, cough and non-blanching purpura. His coagulation...

    Correct

    • An 8-year-old boy is presented with arthritis, cough and non-blanching purpura. His coagulation profile is normal. His CBC: Hb 11.8 TLC 7.2*10^9 Plt 286*10^9. What is the most likely diagnosis?

      Your Answer: Henoch-Schönlein Purpura (HSP)

      Explanation:

      The best answer is Henoch-Schönlein Purpura (HSP). This patient has a characteristic rash and the labs are consistent with this diagnosis.

    • This question is part of the following fields:

      • Cardiovascular
      29.1
      Seconds
  • Question 19 - Baby Jasmine is 3 months old. At this age she should be exhibiting...

    Incorrect

    • Baby Jasmine is 3 months old. At this age she should be exhibiting which of the following hearing and speech milestones?

      Your Answer: Babbling loudly and tunefully with repetitive strings of syllables, e.g. ba-ba

      Correct Answer: Crying when uncomfortable and annoyed

      Explanation:

      By the age of 3 months Jasmine should startle to loud noises, recognise her parents voices and turn to them when they are speaking, and should quiet down or smile at the sound of a familiar voice when crying. She should also cry when she is uncomfortable or irritated. By the time Jasmine is 9 months old she would begin to understand and respond to the word ‘no’ as well as other easy commands. She would be able vocalise and babble with repetitive sounds, and imitate adults’ playful sounds. She would be much less likely startled by loud noises.

    • This question is part of the following fields:

      • Child Development
      35.3
      Seconds
  • Question 20 - Which of the given clinical features is found in multiple endocrine neoplasia (MEN)...

    Correct

    • Which of the given clinical features is found in multiple endocrine neoplasia (MEN) type 1?

      Your Answer: Carcinoid tumours

      Explanation:

      Multiple endocrine neoplasia type 1 is a rare, autosomal dominant disorder characterized by a higher propensity to develop various endocrine and nonendocrine tumours. The primary endocrine tumours that are a part of this disorder include carcinoid tumours and tumours of parathyroid, enteropancreatic, and anterior pituitary origin. Carcinoid tumours encountered in MEN type 1 are mostly of the foregut region. Non-endocrine tumours found in MEN type 1 include meningiomas and ependymomas, lipomas, angiofibromas, collagenomas, and leiomyomas. The pathogenesis of MEN type 1 is the inactivating mutation of the tumour suppressor gene MEN 1, which encodes the protein menin.

    • This question is part of the following fields:

      • Endocrinology
      8.6
      Seconds

SESSION STATS - PERFORMANCE PER SPECIALTY

Emergency Medicine (0/1) 0%
ENT (1/1) 100%
Microbiology (1/1) 100%
Epidemiology And Statistics (1/2) 50%
Nephro-urology (2/2) 100%
Dermatology (0/2) 0%
Haematology And Oncology (1/1) 100%
Anatomy (2/2) 100%
Infectious Diseases (1/1) 100%
Nutrition (1/1) 100%
Child Development (0/2) 0%
Genetics And Dysmorphology (0/1) 0%
Neonatology (1/1) 100%
Cardiovascular (1/1) 100%
Endocrinology (1/1) 100%
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