prakhar992
please give solutions of question number 2,3 and 5
Official Explanation
2. According to the passage, an unlabeled use of a drug is any use that
Explanation
This is an explicit idea question. The reference we need is to be found in the first paragraph. There the author explains that the term “unlabeled use” is used to refer to any medically valuable use of any already approved drug that has not yet been specifically recognized by the FDA.
(A) is incorrect because this is a prohibited use, as that term is used in the text.
(B) is incorrect because an unlabeled use is one that was not considered when the drug was originally labeled; it is one discovered later, not one proposed, tested, and rejected.
(D) is incorrect because the author would term this a labeled use.
Finally, (E) is incorrect since this refers to research designed to determine whether a drug has labeled uses because it meets the legal standard of substantial evidence of such uses.
The correct answer is (C)
3. It can be inferred from the passage that the intransigent physician (Highlighted)
Explanation
This is an inference question that requires that we collate information from two parts of the passage. In paragraph two the author refers to physicians who persist in prohibited use for one of two reasons: ignorance or refusal to accept evidence. Then, in the third paragraph, the author refers to physicians who use drugs in violation of labeling instructions as either uninformed or intransigent. The parallelism here tells us that the intransigent physician is the one who rejects the evidence that the drug is ineffective. This is neatly captured by (C).
(A) is incorrect since the intransigent physician prescribes the drug in violation of the labeling provision because he believes that the drug is effective.
(B) is incorrect, for this would be a physician who is anything but intransigent.
As for (D), an intransigent physician might take such actions, but this is not the defining characteristic of an intransigent physician.
Finally, (E) can be eliminated since the author specifically expresses reservations as to whether such behavior is illegal.
The correct answer is (C)
5. With which of the following statements about the distinction between approved and unlabeled uses would the author most likely agree?
Explanation
This is an application, and we must find the statement that is most likely to be acceptable to the author. (E) would likely be embraced by the author since it is in agreement with the first paragraph of the passage, which explains that unlabeled uses are created by the time lag between the discovery of the use and the accumulation of data needed to prove that use effective.
(A) is an attractive answer, but it fails upon careful reading. The distinction referred to there is that between approved and unlabeled uses. The distinction that the author attempts to draw is between two types of unapproved uses: unlabeled and prohibited. This is the distinction that has been blurred, says the author, not the distinction between approved and unlabeled.
(B) is incorrect for the same reason. The blurred distinction is between unlabeled and prohibited uses (both types of unapproved uses), not between approved and unlabeled uses.
(C) is incorrect since the distinction between unlabeled and approved uses is a matter of practice, not categorization. The unlabeled use exists because a physician uses the drug in a beneficial but not yet approved way, not because the physician or government decides that the use is unlabeled versus approved.
(D) is incorrect since the author calls for caution in unlabeled use in the final paragraph.
The correct answer is (E).
Hope it helps