Which of the following statements about the potency (strength) of toxic substances is true?Multiple choice question.For some toxic substances, a millionth of a gram (an amount invisible to the naked eye) can be lethal.If something is toxic, it is by definition lethal at minute doses.The potency of toxic substances varies, but minute doses are never lethal.Potency is predictable because all people respond similarly to a given dose.

Which of the statements below accurately captures the relationship between toxicity and potency?Multiple choice question.The potency of toxins varies, but knowing the level at which a substance is directly toxic makes it possible to establish safe levels for exposure.Though categorizing toxins based on potency is useful, it is complicated by differences in individual and species reactions to particular chemicals.Studies of relative toxicity show that while synthetic toxins are very potent, natural toxins have low potency and are toxic only in large doses.Need help? Review these concept resources.

Select all that applyIn assessing the danger of toxic substances, which of these statements are true?Multiple select question.Any exposure to toxic substances is unjustifiable.The dose makes the poison.Our increasing ability to detect traces of a substance sometimes means that though we can detect it, the level may be too low to cause harm.If a toxin can be detected, it is dangerous, no matter how low the level.Need help? Review these concept resources.

Which one of the following statements regarding paracetamol overdose is false?Question 4Answera.Kidney injury occurs by metabolite other than NAPQIb.The toxic metabolite in paracetamol overdose is NAPQIc.Patients getting anticonvulsant like phenytoin is high risk of liver injury from paracetamol overdosed.NAC is the antidote to paracetamol overdose

Which of the following parameters is used to indicate the ability of a drug to produce the desired therapeutic effect relative to a toxic effect? * (a) Potency (B) Intrinsic activity (C) Therapeutic Index (D) Efficacy (e) Bioavailability

What does the saying "the dose makes the poison" mean?Multiple choice question.All substances have equivalent potential for harm, so exposure to any of them is risky.Any amount of a dangerous substance is unacceptable and counting the numbers of compounds detected is a reliable way to establish danger.Most substances are toxic at some level of exposure depending on the substance and the nature of the exposure.What matters is the amount of a toxic substance present; whether or not we are exposed to the toxin is not relevant.Need help? Review these concept resources.