NURSING ANM AND GNM

NURSING EXAM QUESTIONS

TOXICOLOGY

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Which chemical is often found in plastic water bottles and is known as a probable endocrine disruptor?

A	Aldicarb
B	DDT
C	Mercury
D	BPA

Explanation:

Detailed explanation-1: -Introduction. Bisphenol A (BPA) is a chemical produced in large quantities for use primarily in the production of polycarbonate plastics. It is found in various products including shatterproof windows, eyewear, water bottles, and epoxy resins that coat some metal food cans, bottle tops, and water supply pipes.

Detailed explanation-2: -BPA is classified as an Endocrine Disrupting Chemical (EDC) because it can act as a xenoestrogen. EDCs interfere and prevent the binding of natural hormones to their receptors and/or can act as a hormone mimics; consequently, they exaggerate the effects of endogenous hormones [2, 8].

Detailed explanation-3: -About BPA. BPA is an industrial chemical used to make a hard, clear plastic known as polycarbonate. It may also be used as an ingredient in some resins, which can act as a lining on the inside of some metal food and drink cans.

There is 1 question to complete.