NURSING EXAM QUESTIONS
TOXICOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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abuse, dependence, medical value
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acute, chronic, overdose
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intentionally, accidentally, deliberately
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dosage, duration, interactions with other medicines
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Detailed explanation-1: -The different ways a person can come into contact with hazardous chemicals are called exposure pathways. There are three basic exposure pathways: inhalation, ingestion, and skin contact.
Detailed explanation-2: -Routes of Exposure: Exposure to a substance can occur by inhalation, ingestion or direct contact. Inhalation (breathing) of gases, vapors, dusts or mists is a common route of exposure. Chemicals can enter and irritate the nose, air passages and lungs.
Detailed explanation-3: -Toxicity can be measured by the effect the substance has on an organism, a tissue or a cell. We know that individuals will respond differently to the same dose of a substance because of a number of factors including their gender, age and body weight. Therefore a population-level measure of toxicity is often used.