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Unlike the lungs and the kidneys, the liver is an organ well suited [o

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Unlike the lungs and the kidneys, the liver is an organ well suited [o  [#permalink]

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New post 23 Oct 2019, 00:53
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Unlike the lungs and the kidneys, the liver is an organ well suited for living-donor transplants to children because the portion of the liver must be removed from a healthy adult to replace the diseased liver of a child will be regenerated in the healthy adult within a few months.

Which of the following, if true, provides the most additional support for the conclusion drawn above?

(A) The success rate of liver transplants is slightly lower in children than in adults.
(B) In removing the portion of liver for transplant there is danger of causing damage to the spleen of the donor, and that could necessitate the removal of the spleen.
(C) There is less danger that a transplanted organ will be rejected when the organ donor is a close relative of the recipient.
(D) There are so few suitable donors that about one-half of the babies with liver disease born in the United States each year die before they can receive a liver transplant.
(E) Each lobe of the liver functions separately, and it is possible to extract a portion of one lobe without disrupting critical liver functions.

Kudos for the oA and explanation

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Re: Unlike the lungs and the kidneys, the liver is an organ well suited [o  [#permalink]

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New post 23 Oct 2019, 10:09
Conclusion-> Liver is suited for living donor transplants.

Evidence -> Regeneration of the portion of the liver in the donor happens within few months.

Prethink -> Can the individual survive until the portion of the liver gets regenerated?

(A) The success rate of liver transplants is slightly lower in children than in adults. - Weakens the argument.
(B) In removing the portion of liver for transplant there is danger of causing damage to the spleen of the donor, and that could necessitate the removal of the spleen. - Weakens the argument by providing a reason to not transplant
(C) There is less danger that a transplanted organ will be rejected when the organ donor is a close relative of the recipient. - Out of scope. Compatibility is not even a point of discussion.
(D) There are so few suitable donors that about one-half of the babies with liver disease born in the United States each year die before they can receive a liver transplant. - Out of scope. Number of available donors is not a point to discuss in the argument.
(E) Each lobe of the liver functions separately, and it is possible to extract a portion of one lobe without disrupting critical liver functions. - Correct. A part of the organ is redundant - means if one is unavailable, there is another one with the same functionality. So the person can survive without it.
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Re: Unlike the lungs and the kidneys, the liver is an organ well suited [o  [#permalink]

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New post 23 Oct 2019, 10:50
carcass wrote:
Unlike the lungs and the kidneys, the liver is an organ well suited for living-donor transplants to children because the portion of the liver must be removed from a healthy adult to replace the diseased liver of a child will be regenerated in the healthy adult within a few months.

Which of the following, if true, provides the most additional support for the conclusion drawn above?


Pre-thinking: We need to reinforce the statement that "Liver will be regenerated in the healthy adult within a few months"

(A) The success rate of liver transplants is slightly lower in children than in adults.
This option is comparing success rates in Children and Adults. so out of scope

(B) In removing the portion of liver for transplant there is danger of causing damage to the spleen of the donor, and that could necessitate the removal of the spleen.
Spleen removal is none of our concern but in any case, this statement some what weakens the conclusion. hence incorrect

(C) There is less danger that a transplanted organ will be rejected when the organ donor is a close relative of the recipient.
Doesnt add any additional weight to the statement "Liver will be regenerated in the healthy adult within a few months"

(D) There are so few suitable donors that about one-half of the babies with liver disease born in the United States each year die before they can receive a liver transplant.
Doesnt add any additional weight to the statement "Liver will be regenerated in the healthy adult within a few months"

(E) Each lobe of the liver functions separately, and it is possible to extract a portion of one lobe without disrupting critical liver functions.
This statement clearly complements the statement that "Liver will be regenerated in the healthy adult within a few months". So we have additional support and hence this strengthens our argument

IMO E is the correct answer as per the explanation above.
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Re: Unlike the lungs and the kidneys, the liver is an organ well suited [o   [#permalink] 23 Oct 2019, 10:50
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Unlike the lungs and the kidneys, the liver is an organ well suited [o

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