Toxicology Final Exam Questions With Correct Verified Answers | 100% Pass (A+ Certified)

The first affected zone of the liver by toxicants is? Zone i zone ii zone iii zone i Fatty liver is the? abnormal accumulation of fat in hepatocytes Acetaminophen (tylenol) toxicity may result in? Fatty liver liver necrosis liver cancer liver necrosis One of the most common causes of live scarring is? Chronic alcohol use morphine addiction lead toxicity all of the above chronic alcohol use Which one of the following can cause bile flow stoppage? Lead toxicity pesticides toxicity Tylenol toxicity pesticides toxicity All of the following are mechanisms by which toxins induce liver damage except Fatty liver liver apoptosis liver scarring (cirrhosis) hepatitis (liver inflammation) none of the above none of the above All of the following are hepatotoxins except carbon tetrachloride tylenol 2 / 15 Bromobenzene None of the above none of the above Cigarette smoking is one of the major causes of chronic bronchitis true 9. Which one of the following might cause occupational asthma? Animal dander health care latex Formaldehyde All of the above all of the above Pheumoconiosis is a group of lung diseases caused by inhaling certain dust leading to lung fibrosis and scarring true Asbestosis is associated with lung cancer true 12. All of the following are respiratory hazards except Carbon monoxide hydrogen cyanide ammonia, sulfer dioxide None of the above none of the above All of the following are mechanisms by which toxins induce kidney damage? Crystal deposition High interglomerular pressure tubular damage all of the above all of the above Which one of the following is not nephrotoxin? Lead cocaine heroin pesticides 3 / 15 None of the above none of the above Nsaid users without previous kidney disorders have 3 folds greater risk for developing acute kidney failure true All of the following are risk factors for nephrotoxicity except? Chronic exposure to toxic agents underlying kidney disease severe dehydration none of the above non of the above The mechanism of cocaine-induce nephrotoxicity is? High interglomerular pressure Inflammation tubular damage none of the above tubular damage All of the following are neurotoxins except? Alcohol lead pesticides cyanide None of the above none of the above Cyanide binds reversibly with ferric ion of cytochrome oxidase a3 resulting in enzyme inhibition and no atp production in the mitochondria true Tetrodotoxin (from puffer fish) blocks sodium ion channels resulting in difficult neuromuscular coordination, difficulty in speaking and swallowing, and respiratory paralysis true 4 / 15 What is the effect of cocaine on the nervous system? Cocaine disrupts neurotransmitter transmission cocaine induces myelin sheath damage Cocaine induces neuro death cocaine disrupts neurotransmitter transmission 22. Pesticides inhibit ach esterase resulting in high ach levels true 23. We get exposed to lead via the exposure to? Sweating agents lead pipes (plumbing) house paint All of the above all of the above Organic mercury is the most common source of human exposure to mercury true All of the following are reproductive toxicants except alkylating agents Polycyclic aromatic hydrocarbons lead Cigarette smoking none of the above none of the above A toxin produced by certain types of animals is the definition of? Toxicant toxoid venom venom (chemically modified toxin that is no longer toxic, but antigenic ) that is the correct definition for? Poison toxicants venom