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# The human body s blood vessels and veins are designed to

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Manager
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The human body s blood vessels and veins are designed to [#permalink]

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04 Nov 2010, 08:03
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The human body’s blood vessels and veins are designed to keep fluid inside of them and out of the skin. A person can have a hive outbreak when the fluid escapes the blood vessels or veins and pools under the skin causing swelling. Hives can occur due to allergic reactions to common items.

Which of the following, if true, points to the most serious flaw of a plan to develop a medication that would prevent hive attacks by blocking receipt of any messages of histamine to blood vessels?

(A) Researchers do not yet know how the body produces the message that histamine is present and triggers hive attacks.
(B) Researchers do not yet know what makes one person break out in hives from a histamine attack when another person does not
(C) Such a medication would not become available for several years, because of long lead times in both development and manufacture.
(D) Such a medication would be unable to distinguish between messages trigged by different allergens
(E) Such a medication would be a preventive and would be unable to alleviate hives that had already started

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If You like my question KUDOS pls.
[Reveal] Spoiler: OA
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Senior Manager
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04 Nov 2010, 13:10
(D) Such a medication would be unable to distinguish between messages trigged by different allergens - the medication will not stop trigger when an individual is exposed to any allergen which is not harmful too.
Manager
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09 Dec 2010, 05:43
In order to work the medicine properly, it should take care of all the effects of it.
If a medication can not distinguish between different responses, it is a clear failure.

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Re: The human body s blood vessels and veins are designed to [#permalink]

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05 Oct 2016, 19:38
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Manager
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Re: The human body s blood vessels and veins are designed to [#permalink]

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09 Oct 2016, 01:48
feruz77 wrote:
The human body’s blood vessels and veins are designed to keep fluid inside of them and out of the skin. A person can have a hive outbreak when the fluid escapes the blood vessels or veins and pools under the skin causing swelling. Hives can occur due to allergic reactions to common items.

Which of the following, if true, points to the most serious flaw of a plan to develop a medication that would prevent hive attacks by blocking receipt of any messages of histamine to blood vessels?

(A) Researchers do not yet know how the body produces the message that histamine is present and triggers hive attacks.
(B) Researchers do not yet know what makes one person break out in hives from a histamine attack when another person does not
(C) Such a medication would not become available for several years, because of long lead times in both development and manufacture.
(D) Such a medication would be unable to distinguish between messages trigged by different allergens
(E) Such a medication would be a preventive and would be unable to alleviate hives that had already started

----------
If You like my question KUDOS pls.

" Hives can occur due to allergic reactions to common items." or maybe it can occur by some other factor. If it does allergens are not the cause and medication that blocks will not help. In B different person has different tendencies to break out hive. I guess B and D are competitors. D is weakened because allergens cause hive and it represents a negative phenomenon that causes hive formation,so whatever the message be, it will always block and therefore no hive formation.
I guess B is right.
Manager
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Re: The human body s blood vessels and veins are designed to [#permalink]

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10 Oct 2016, 04:10
A and B say that "Researchers do not yet know" which means they might know in the future whatever they don't know yet. So, I discarded these choices without reading further. Can such choice be correct?
Re: The human body s blood vessels and veins are designed to   [#permalink] 10 Oct 2016, 04:10
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