Notes in MBBS IASM M30_Jaden:)::SE IHD MC

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Published	11/20/2024	1. Axons of spinal motor neurons form efferent nerve fibres to the target muscles. Which of the following structures contain only motor fibres? A. Dor…
Published	11/20/2024	2. Which of the following blood vessel has the most prominent internal and external elastic membrane? A. Arterioles B. Capillaries C. Elastic arteries…
Published	11/20/2024	3. A 30 year old male sustained a head injury from a vehicular accident. He experienced clear nasal discharge and loss of sense of smell. How would yo…
Published	11/20/2024	4. What is the type of connective tissue that consists a network of thin collagen type III fibres and cells and support framework of lymphoid organs? …
Published	11/20/2024	5. What does the hill plot of myoglobin and hemoglobin show? A. Both myoglobin and haemoglobin show positive cooperativity B. Myoglobin show positive …
Published	11/20/2024	6. Lactic acidosis could result from production of lactate in excess of its metabolism. Which condition would lead to increase in its level? A. Aerobi…
Published	11/20/2024	7. A patient goes to the doctor and has his fasting blood glucose measured at 7.0 mmol/l. He is then told by the doctor to undergo a glucose tolerance…
Published	11/20/2024	8. Tamoxifen is a FDA approved drug indicated for prevention of breast cancer for women who are at risk. Which receptor does Tamoxifen act on? A. Estr…
Published	11/20/2024	9. Signal transduction: cAMP and 1,2-DAG (diacylglycerol) are second messengers. What would DAG activate? A. Phospholipase A B. Phospholipase C C. Pro…
Published	11/20/2024	10. X-linked recessive disorder is a mode of inheritance in which a mutation in a gene on the X chromosome causes the phenotype to be expressed in hem…
Published	11/20/2024	11. What shows the strength of association between lung cancer and smoking? A. Absolute risk B. Attributable risk C. Excess risk D. Odds E.  Rela…
Published	11/20/2024	12. Norms are one of the ways a social group both communicate and regulate the behaviors of its member. Breaking social norms usually results in disap…
Published	11/20/2024	13. Which of the following antibiotics kills bacteria by interfering with the transpeptidation step of cell wall synthesis? A. Amoxicillin B. Ci…
Published	11/20/2024	14. Which of the following is the MOST COMMON cause of acute cystitis in young women? A. Enterococcus faecalis B. Enterococcus faecium C. Staphylococc…
Published	11/20/2024	15. Which one of the following is MOST LIKELY INHIBITED by 70% ethanol? A. Clostridium difficile spore B.  Influenza B virus C. Mycobacterium ab…
Published	11/20/2024	16. Which model has the least respect for the patient as a moral person? A. Contract model where doctors and patients are equal B. Fiduciary model whe…
Published	11/20/2024	17. Which of the followings allow herpes virus to evade host immunity A. heat resistance B. latency C. reverse transcription D. RNA-dependant-RNA pol…
Published	11/20/2024	18. Which of the following is a foodborne parasite? A. Clonorchis sinensis B. Hookworm C. Plasmodium D. Schistosoma E. Trichomonas vaginalis
Published	11/20/2024	19. A 60-year-old man survived in myocardial infarction but developed progressive shortness of breath and ankle edema. Chest X-Ray showed enlarged hea…
Published	11/20/2024	20. Which of the following is most characteristic of Type E adverse drug reaction? A. It has a high mortality B. It has a low incidence C. It is relat…
Published	11/20/2024	21. Which formulation is best released at the site of absorption? A. Enteric Coated Tablet B. IV Injection C. Controlled-release tablet D. Sustained r…
Published	11/20/2024	22. Which of the following antibacterial drugs inhibit folic acid biosynthesis? A. Chloramphenicol B. Macrolides C. Neomycin D. Penicillin E. Sulfonam…
Published	11/20/2024	23. Resting membrane potential is the potential across the plasma membrane under quiescent conditions. What determines the resting membrane potential?…
Published	11/20/2024	24. Which of the followings block the release of neurotransmitter in the chemical synapse? A. Absence of extracellular Ca ion B. Inactivation of gap …
Published	11/20/2024	25. Which of the following can inhibit platelet aggregation? A. ADP B. Fibrin C. Plasmin D. Prostacyclin E. Thrombin
Published	11/20/2024	26. Drugs with anti-cholinesterase activity can produce which of the following effects? A. It decreases salivary secretion. B. It increases blood pres…
Published	11/20/2024	27. Humans are homeothermic with core body temperature of 37 degrees. When the core body temperature is lower than the thermal set-point of thermoregu…
Published	11/20/2024	28. Different blood vessels serve different functions in the circulatory system. Which of the following is the function of large elastic artery? A. Di…
Published	11/20/2024	29. In basal ganglian dysfunction leading to movement disorder, which of the following neurotransmitters is MOST OFTEN involved? A. Acetylcholine B. D…
Published	11/20/2024	30. The resting membrane potential is the potential difference across the plasma membrane under quiescent condition. Which of following channel determ…
Published	11/20/2024	31. Platelet has a critical role in blood clot formation. Platelet aggregation is inhtbited by which of the following? A. ADP B. Fibrin C. Plasmin D. …
Published	11/20/2024	32. Acute epiglottitis in childhood is MOST OFTEN caused by which of the following? A. Corynebacterium diphtheriae B. Haemophilus influenzae type b C…
Published	11/20/2024	33. A 30-year-old professional marathon runner is trained for the 2012 Olympics. He notices that his breathing rate increases after 20 minutes of exer…
Published	11/20/2024	34. Mutations in the human APC gene often occur early in colorectal cancers. How does the APC protein achieve its tumor suppressor function. A. It act…
Published	11/20/2024	35. A patient with Cushing's syndrome produces excessive amount of cortisol and has hyperglycaemia, which of the following biochemical processes is up…
Published	11/20/2024	36. The recombinant fraction is used to measure the distance between 2 loci. What is the relationship between 2 loci when recombinant fraction is 0? A…
Published	11/20/2024	37. X-linked recessive disorder is a mode of inheritance in which a mutation in a gene on the X chromosome causes the phenotype to be expressed in hem…
Published	11/20/2024	38. TAG are storage lipids. Following form the store, the fatty acyl components are delivered to and oxidized to muscle to generate fuel molecules. Wh…
Published	11/20/2024	39. McArdle's disease is due to deficiency of glucogen phosphorylation in skeletal muscle. During exercise, how may metabolism of fuel molecules in sk…
Published	11/20/2024	40. Different muscle tissues have different regeneration ability. Which of the following has the most regeneration ability? A. Cardiac muscle B. Red m…
Published	11/20/2024	41. A study comparing data from 20 countries has found that the per capita daily amount of meat consumption is positively correlated with the incidenc…
Published	11/20/2024	42. Which of the following equipment requires only a lower level of disinfection? A. Endoscope B. Intravenous catheter C. Stethoscope D. Surgical sca…
Published	11/20/2024	43. One of the main cytotoxic mechanisms used by polymorphs to degrade micro-organisms involves reactive oxygen metabolites. Which of the following en…
Published	11/20/2024	44. What is the most important property of hemopoietic stem cells which enables them to sustain red cell production throughout life? A. apoptosis B. D…
Published	11/20/2024	45. For a disease with a pre-test probability of 0.01, what is the post-test probability for a test with sensitivity of 0.5, specificity of 0.5? A. 0.…
Published	11/20/2024	46. Which drug formulation has the best site specific release? A. Enteric coated tablet B. IV Injection C. Slow release tablet D. Sustained release ca…
Published	11/20/2024	47. What is the effect of pre-synaptic alpha2 adrenoceptor stimulation? A. A decrease in blood pressure B. A decrease in muscle strength C. An increa…
Published	11/20/2024	48. The local anaesthetic agent lidocaine blocks the activity of voltage-gated sodium channels. Which of the following will be increased in the nerve …
Published	11/20/2024	49. The resting membrane potential is the potential difference across the plasma membrane under unstimulated conditions. Which of following channels d…
Published	11/20/2024	50. In attempting to resolve an ethical dilemma or conflict between patients and healthcare providers, paying attention to the medical context of the …
Published	11/20/2024	51. In the China cultural context, it is considered unkind or harmful to patient if "fateful' news is disclosed fully and all at once. A "truth disclo…
Published	11/20/2024	52. Which of the following statement CORRECTLY describe the benefits of smoking cessation on health? A. The benefits will be minimal if the patient ha…
Published	11/20/2024	53. Which of the following respiratory tract pathogens can be prevented by a toxoid vaccine? A. Bordetella Pertussis B. Corynebacterium diphtheriae C…
Published	11/20/2024	54. Humans are homeothermic with core body temperature of 37 degrees. When the thermal set-point of thermoregulatory centre in the hypothalamus is rai…
Published	11/20/2024	55. Which of the following is the MOST IMPORTANT factor which drugs flow through the capillary (except for the brain)? A. the blood flow of the capill…
Published	11/20/2024	56. Regarding the rate of metabolism of drugs, A. it varies with different ethnic background. B. It depends on the lipophilicity of the drug. C. it d…
Published	11/20/2024	57. A new test is developed for the diagnosis of acute myocardial infarction. For 100 AMI patients, 99 are tested positive. For 100 normal people, 98 …
Published	11/20/2024	58. For basal ganglia dysfuction leading to movement disorder, which neurotransmitter is the MOST OFTEN one involved? A. Acetylcholine B. Dopamine C.…
Published	11/20/2024	59. Which of the following will block the release of nerve transmitter in synapse? A. Absence of extracellular calcium concentration B. Inactive gap …
Published	11/20/2024	60. A study comparing data from 20 countries has found that the per capita daily amount of meat consumption is positively correlated with the incidenc…
Published	11/20/2024	61. Someone has a fasting glucose of 7.X mmol/L (FPG.. His blood glucose after meal (OGTT. is 6.5 mmol/L (taken at 0 hour., 15.X at 1 hour, and 11.X a…
Published	11/20/2024	62. Joanne, who is about to take her final MB, has had difficulty sleeping. She claims that she often sweats at night and can feel her own heartbeat. …
Published	11/20/2024	63. Bioethicists and medical lawyers have come up with different models to qualify the patient-physician relationship. Which of the following is the l…
Published	11/20/2024	64. Socioeconomic factors have been found to be associated with incidence of COPD. Which of the following socioeconomic factors is associated with inc…
Published	11/20/2024	65. Which molecule is a direct mediator of acquired (specific) immunity? A. Acute phase protein B. B cell receptor C. Opsonin D. Chemokine E.
Published	11/20/2024	66. What is the definition of reference interval.... A. It always has both upper and lower limits B. It encompasses the central 95% of reference indiv…
Published	11/20/2024	67. A 55y/o female patient has tortuous dilated vessel visible on the posterior aspect of leg (calf). Which vessel is it? What veins are those? A. Gre…
Published	11/20/2024	68. You are examining a cell with an electron microscope and noticed many mitochodria, lysosome, few, if any Golgi, and many ribosome. Which is the MO…
Published	11/20/2024	69. Sensory nerve endings distribution in the body are responsible for afferent sensory input related t toxin, pain, temperature, pressure etc. Which …
Published	11/20/2024	70. The activating of M phase cyclin B Cdk 1 is activated by which of the following mechanism? A. Binding to Cdk 1 activator B. Binding to p53 C. Degr…
Published	11/20/2024	71. Cholera toxin causes diarrhea in part because it can exert an effect on G-protein mediated signal transduction cascade. Which of the following pos…
Published	11/20/2024	72. A 15 year old girl presents to a general practitioner as she has not started her menses yet. On examination, she is short and has lymphoedema, bro…
Published	11/20/2024	73. During starvation, what is the biochemical mechanism that is inhibited? A. Gluconeogenesis B. Ketogenesis C. Glycogenolysis D. Glycolysis E. Glyc…
Published	11/20/2024	74. In enzyme-mediated catalysis, which of the following is a characteristic? A. The process is independent of temperature B. The substrate is stabili…
Published	11/20/2024	75. Mrs Chan had episodes of abdominal pain for several months. She sees the family doctor because her daughter insisted that she should seek medical …
Published	11/20/2024	76. Which of the following occupational risk is an ergonomic factor? A. High level of noise B. Manual handling of heavy objects C. Second-hand smoke …
Published	11/20/2024	77. Legislation underlies most of the important health promotion developments in the past 150 years. Hong Kong has a number of legislative requirement…
Published	11/20/2024	78. Viral infection can be diagnosed by A. Culture on blood agar B. Detection of Ag using immunological test C. Identifying individual particles unde…
Published	11/20/2024	79. Which of the following can be used as a chemical sterilant? A. 60% isopropanol B. 70% ethanol C. Cetrimide D. Chlorhexidine gluconate E. Glutarald…
Published	11/20/2024	80. Which of the following immunological diseases is associated with the recurrent infection of encapsulated bacteria such as Streptococcus pneumoniae…
Published	11/20/2024	81. One of the main cytotoxic mechanism used by polymorphs to degrade micro-organisms involves reactive oxygen metabolites. which of the following enz…
Published	11/20/2024	82. Mrs. Chan has carcinoma of the sigmoid colon. Surgical resection and pathological investigation found there were tumor cells invading into blood v…
Published	11/20/2024	83. Cancer can be caused by environmental or genetic factors. A 36- year-old woman noted blood in the stool and underwent endoscopy examination. The e…
Published	11/20/2024	84. An intravenous drug addict is found dead at a shelter and an autopsy is performed. Histology shows the presence of numerous caseating granulomas w…
Published	11/20/2024	85. Vaccination protects us from infection by which of the following mechanisms? A. Enhancing natural killer cell activity B. Establishing immunologic…
Published	11/20/2024	86. Heroin dependence is characterized by which of the following? A. Allergy B. Carcinogenesis C. Hallucination D. Resistance E. Withdrawal symptoms&n…
Published	11/20/2024	87. If a patient has been stabilized on a highly potent drug of Brand A, it is not advisable to substitute it with Brand B product that contains the s…
Published	11/20/2024	88. Which of the following is important for platelet adhesion? A. Globulin B. Glycoprotein IIb/IIIa C. Iron D. Pasmin E. Transferrin
Published	11/20/2024	89. Which of the following biochemical or physiological changes will occur at the hillock of a membrane generating an action potential? A. An increase…
Published	11/20/2024	90. When a person exercises, blood supply to contracting skeletal muscle increases. What is the mechanism for the local increase in blood supply: A. C…
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