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Blood banks will shortly start to screen all donors for NANB hepatitis. Although the new screening tests are estimated to disqualify up to 5 percent of all prospective blood donors, they will still miss two-thirds of donors carrying NANB hepatitis. Therefore, about 10 percent of actual donors will still supply NANB-contaminated blood.
Which of the following inferences about the consequences of instituting the new tests is best supported by the passage above?
  • a)
    The incidence of new cases of NANB hepatitis is likely to go up by 10 percent.
  • b)
    Donations made by patients specifically for their own use are likely to become less frequent.
  • c)
    The demand for blood from blood banks is likely to fluctuate more strongly.
  • d)
    The blood supplies available from blood banks are likely to go down.
  • e)
    The number of prospective first-time donors is likely to go up by 5 percent.
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Blood banks will shortly start to screen all donors for NANB hepatitis...
The passage states that even with the new screening tests, about 10 percent of actual donors will still supply NANB-contaminated blood. This implies that the blood supplies available from blood banks are likely to decrease because a portion of the donors will be disqualified due to the screening tests. Therefore, option (D) is the best-supported inference based on the passage.
Let's briefly examine the other options and explain why they are not as strongly supported:
(A) The incidence of new cases of NANB hepatitis is likely to go up by 10 percent.
  • There is no information in the passage that suggests an increase in the incidence of new cases of NANB hepatitis. The passage only talks about the screening tests and their effectiveness in identifying contaminated blood, not the overall incidence of the disease.
(B) Donations made by patients specifically for their own use are likely to become less frequent.
  • The passage does not mention anything about donations made by patients specifically for their own use. It focuses on blood donors and the screening tests used to detect NANB hepatitis.
(C) The demand for blood from blood banks is likely to fluctuate more strongly.
  • There is no information in the passage to support the claim that the demand for blood from blood banks will fluctuate more strongly. The passage primarily discusses the screening tests and the potential impact on blood supplies.
(E) The number of prospective first-time donors is likely to go up by 5 percent.
  • The passage does not provide any information about an increase in the number of prospective first-time donors. It only mentions that up to 5 percent of all prospective blood donors may be disqualified due to the screening tests.
In summary, option (D) is the best-supported inference based on the passage, as it aligns with the information provided about the potential decrease in blood supplies from blood banks
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Community Answer
Blood banks will shortly start to screen all donors for NANB hepatitis...
Introduction:
The passage states that blood banks will soon start screening all donors for NANB hepatitis. While the new screening tests will disqualify up to 5 percent of prospective donors, they will still miss two-thirds of donors carrying NANB hepatitis. As a result, it is estimated that about 10 percent of actual donors will still provide NANB-contaminated blood. Based on this information, we need to infer the consequences of instituting the new tests.

Inference:
The best-supported inference about the consequences of instituting the new tests is that the blood supplies available from blood banks are likely to go down.

Explanation:
- The passage mentions that the new screening tests will disqualify up to 5 percent of prospective blood donors. This indicates that a certain percentage of potential donors will be ineligible to donate blood due to the presence of NANB hepatitis.
- Additionally, the passage also states that the new tests will still miss two-thirds of donors carrying NANB hepatitis. This means that even though the screening tests are implemented, a significant number of donors with NANB hepatitis will still be able to donate blood.
- Combining these two pieces of information, it can be inferred that the implementation of the new tests will result in a decrease in the overall blood supplies available from blood banks. This is because a portion of potential donors will be disqualified, and the screening tests will not be able to identify all donors with NANB hepatitis.
- The passage further mentions that about 10 percent of actual donors will still supply NANB-contaminated blood. This reinforces the idea that the new tests will not be completely effective in preventing the supply of contaminated blood.
- Therefore, the best-supported inference is that the blood supplies available from blood banks are likely to go down as a consequence of instituting the new tests. This conclusion is based on the fact that a percentage of potential donors will be disqualified, and the screening tests will not identify all donors with NANB hepatitis.
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Blood banks will shortly start to screen all donors for NANB hepatitis. Although the new screening tests are estimated to disqualify up to 5 percent of all prospective blood donors, they will still miss two-thirds of donors carrying NANB hepatitis. Therefore, about 10 percent of actual donors will still supply NANB-contaminated blood.Which of the following inferences about the consequences of instituting the new tests is best supported by the passage above?a)The incidence of new cases of NANB hepatitis is likely to go up by 10 percent.b)Donations made by patients specifically for their own use are likely to become less frequent.c)The demand for blood from blood banks is likely to fluctuate more strongly.d)The blood supplies available from blood banks are likely to go down.e)The number of prospective first-time donors is likely to go up by 5 percent.Correct answer is option 'D'. Can you explain this answer? for GMAT 2025 is part of GMAT preparation. The Question and answers have been prepared according to the GMAT exam syllabus. Information about Blood banks will shortly start to screen all donors for NANB hepatitis. Although the new screening tests are estimated to disqualify up to 5 percent of all prospective blood donors, they will still miss two-thirds of donors carrying NANB hepatitis. Therefore, about 10 percent of actual donors will still supply NANB-contaminated blood.Which of the following inferences about the consequences of instituting the new tests is best supported by the passage above?a)The incidence of new cases of NANB hepatitis is likely to go up by 10 percent.b)Donations made by patients specifically for their own use are likely to become less frequent.c)The demand for blood from blood banks is likely to fluctuate more strongly.d)The blood supplies available from blood banks are likely to go down.e)The number of prospective first-time donors is likely to go up by 5 percent.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for GMAT 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Blood banks will shortly start to screen all donors for NANB hepatitis. Although the new screening tests are estimated to disqualify up to 5 percent of all prospective blood donors, they will still miss two-thirds of donors carrying NANB hepatitis. Therefore, about 10 percent of actual donors will still supply NANB-contaminated blood.Which of the following inferences about the consequences of instituting the new tests is best supported by the passage above?a)The incidence of new cases of NANB hepatitis is likely to go up by 10 percent.b)Donations made by patients specifically for their own use are likely to become less frequent.c)The demand for blood from blood banks is likely to fluctuate more strongly.d)The blood supplies available from blood banks are likely to go down.e)The number of prospective first-time donors is likely to go up by 5 percent.Correct answer is option 'D'. Can you explain this answer?.
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