Toxicology — MCQs

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1. The study of harmful effects of chemicals on living organisms is called:





2. The dose at which 50% of test animals die is called:





3. The highest dose at which no adverse effect is observed is:





4. The lowest dose at which an adverse effect is observed is:





5. The antidote for organophosphate poisoning is:





6. The antidote for cyanide poisoning is:





7. The antidote for iron poisoning is:





8. The antidote for lead poisoning is:





9. The antidote for mercury poisoning is:





10. The antidote for paracetamol overdose is:





11. The antidote for benzodiazepine overdose is:





12. The antidote for opioid overdose is:





13. The antidote for heparin overdose is:





14. The antidote for warfarin overdose is:





15. The term “toxin” usually refers to:





16. Which organ is the primary site of detoxification?





17. Which organ is the primary site of toxic excretion?





18. Carbon monoxide poisoning primarily affects:





19. The treatment for carbon monoxide poisoning is:





20. Chronic exposure to asbestos causes:





21. Chronic arsenic poisoning leads to:





22. Methanol poisoning leads to:





23. Ethylene glycol poisoning primarily damages:





24. The antidote for methanol or ethylene glycol poisoning is:





25. Which gas causes cherry-red coloration of skin in poisoning?





26. The poisonous substance in puffer fish is:





27. The toxin produced by Clostridium botulinum is:





28. The poison that inhibits cytochrome oxidase in mitochondria is:





29. The poison that causes blue lines on gums (Burton’s line) is:





30. Minamata disease is caused by poisoning with:





31. Itai-itai disease is caused by poisoning with:





32. The poison that smells like bitter almonds is:





33. Snake venom primarily contains:





34. The venom of cobra is mainly:





35. The venom of viper is mainly:





36. Aflatoxins are produced by:





37. Amanita phalloides mushroom contains:





38. Chronic alcohol consumption primarily damages:





39. Acute salicylate poisoning may cause:





40. The antidote for digoxin toxicity is:





41. The antidote for snake bite is:





42. The toxic compound in castor beans is:





43. The toxic compound in apple seeds is:





44. The most toxic natural substance known is:





45. The poison that causes pinpoint pupils (miosis) is:





46. The poison that causes dilated pupils (mydriasis) is:





47. The most common poisoning worldwide is due to:





48. Chronic fluoride poisoning causes:





49. The poison causing garlic odor in breath is:





50. The field of toxicology that studies poisons in the environment is:





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