MCQs in TOXICOLOGY

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MCQs in TOXICOLOGY

  1. 1. Why is it important to know the toxic mechanism of apoison?a) To know what vital function will be affected.b) To know the potential severity of the case.c) It helps to decide what course of action will be taken.d) All of the above.
  2. 2. A classical example of a poison that can give both systemic and local effects is:a) Oxalic acid.b) Sulfuric acid.c) Alkalid) All of the above.
  3. 3. Types of hypoxia includea) Hypoxic hypoxiab) Anemic hypoxicc) Cytotoxic hypoxiad) Stagnant hypoxiae) All of the above
  4. 4. Which of the following is a direct toxic mechanism:a) Binding of the poison to cellular protein.b) Inhibition of an enzyme.c) Burning of the skin by a mineral acid.d) Formation of a toxic metabolites.
  5. 5. Which of the following indicators is most helpful to you in deciding whether you have a case of poisoning or not?a) Signs and symptoms.b) Laboratory analysis.c) A witness saw the incidence.d) Presence of the poison with poisoned person.
  6. 6. In general, which of the following factors is the most importantregarding the expected severity of a case of poisoning? a) Dose of the poison. b) Age of the person. c) Sex of the person. d) Form of the substance. e) Route of exposure.
  7. 7. Why is it important to know the toxic mechanism of a poison?a) To know what vital function will be affected.b) To know the potential severity of the case.c) It helps to decide what course of action will be taken.d) All of the above.e) Only A & C.
  8. 8. The source of poison that give least frequent number of casesbut most serious is:A. Animal source.B. Plant source.C. Chemical source.D. All of the above give almost the same frequency of cases.
  9. 9. When a poison is inhaled what methods you will be thinking of to manage the case?a) Induction of emesis.b) Carrying out a gastric lavage.c) Thinking of an active elimination technique.d) Administration of a suitable antidote.e) Both (C) & (D) are possible.
  10. 10. The following is a good example of direct toxic mechanism:a) A burn of student hand in the lab by a sulfuric acid.b) Inhibition of AchE in a case of organophosphate poisoning.c) Death due to asphyxia by CO poisoning.d) Interruption of protein synthesis by a heavy metal.e) Depletion of liver glutathione by paracetamol poisoning.
  11. 11. Absorption of the poison is more by:A) inhalationB) ingestionC) Skin contactD) Absorption is similar in all routes
  12. 12. Absorption of the poison meansA) Poison reaches circulationB) Poison leaves blood to tissuesD) Effect of the poison on receptorsE) none of the above
  13. 13. Which of the following poisons can beidentified by smell?A. parathion.B. Alcohol.C. Hashish.D. All of the above.E. None of the above.
  14. 14. • Which of the following corrosive acids can cause both local and systemic action?A. Oxalic acid.B. Hydrochloric acid.C. Sulfuric acid.D. All of the above.
  15. 15. Select the wrong statementa) Toxicology is the science of poisonsb) Forensic toxicology deals with the identification of legal aspects of poisoningc) The poison is the substance that causes harmful effects to the living organismd) All poisons are toxins

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