It is currently 22 Oct 2017, 19:37

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# CR: BLOOD BANKS

Author Message
Intern
Joined: 27 Nov 2004
Posts: 30

Kudos [?]: 19 [0], given: 0

Location: Vienna, Austria

### Show Tags

19 Jan 2005, 10:16
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

### HideShow timer Statistics

THANKS,F.

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.

The argument above depends on which of the following assumptions?

(A) Donors carrying NANB hepatitis do not, in a large percentage of cases, carry other infections for which reliable screening tests are routinely performed.
(B) Donors carrying NANB hepatitis do not, in a large percentage of cases, develop the disease themselves at any point.
(C) The estimate of the number of donors who would be disqualified by tests for NANB hepatitis is an underestimate.
(D) The incidence of NANB hepatitis is lower among the potential blood donors than it is in the population at large.
(E) The donors who will still supply NANB-contaminated blood will donate blood at the average frequency for all donors.

Kudos [?]: 19 [0], given: 0

Current Student
Joined: 28 Dec 2004
Posts: 3350

Kudos [?]: 319 [0], given: 2

Location: New York City
Schools: Wharton'11 HBS'12

### Show Tags

19 Jan 2005, 10:48
E....

I think the assumption is that DONORS with hepatitis will continue to donate at same frequency therefor test will need to be put in place to filter out....

A also looks plausible, but E seems better..

Kudos [?]: 319 [0], given: 2

Director
Joined: 03 Nov 2004
Posts: 850

Kudos [?]: 57 [0], given: 0

### Show Tags

19 Jan 2005, 10:50
I will go with 'A'
About 10% of the actual donors supply NANB contaminated blood - the new test is not very effective and on the other hand A mentions that there are other reliable tests that are routinely performed which are effective, so if those people who had NANB hepatitis had also had other infections these people would have been identified by these other reliable tests.

Kudos [?]: 57 [0], given: 0

19 Jan 2005, 10:50
Display posts from previous: Sort by