Answer :

When assessing a patient who has been exposed to a poisonous substance, it is essential to understand the signs and symptoms of poisonous or toxic exposure will vary depending on the specific poison or toxic.

A poisonous substance or toxic substance is a kind of substance which can be poisonous or cause bad health effects. Peoples are generally concerned about chemicals like polychlorinated biphenyls (PCBs) and dioxin that can be found at some hazardous waste sites.

Polychlorinated biphenyls (PCBs) are the group of manmade chemicals which are generally found in oily liquids or solids states, and these are very clear to yellow in colour with no smell or taste. Polychlorinated biphenyls are stable mixtures which are resistant to high pressure and extreme temperature.

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