NURSING EXAM QUESTIONS
TOXICOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Oxidative stress
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Cellular respiration
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Effects of toxins on tissues
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Movements of toxins in the body
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Detailed explanation-1: -Toxicokinetics describes how the body handles a chemical, as a function of dose and time, in terms of the concept of ADME (absorption, distribution, metabolism and excretion): The rate of chemical absorption from the site of application into the blood stream.
Detailed explanation-2: -A xenobiotic in small amounts may be non-toxic and even beneficial but when the dose is increased, toxic and lethal effects may result. Toxicology is the study of the adverse effects of chemicals or physical agents on living organisms.
Detailed explanation-3: -Absorption-the substance enters the body. Distribution-the substance moves from the site of entry to other areas of the body. Biotransformation-the body changes (transforms) the substance into new chemicals (metabolites). Excretion-the substance or its metabolites leave the body.