Sodium Intake--LSAT

Expert replies

ssgmatter: Legendary Member; Posts: 549; Joined: Wed Jan 06, 2010 7:00 amFollowed by: 3 members; Thanked: 16 times

by ssgmatter » Wed Mar 31, 2010 8:18 am

Studies suggest that, for the vast majority of people
who have normal blood pressure, any amount of
sodium greater than that required by the body is simply
excreted and does not significantly raise blood pressure.
So only persons who have high blood pressure and
whose bodies are incapable of safely processing excess
sodium need to restrict their sodium intake.
Which one of the following, if true, would most
seriously weaken the argument?
(A) High blood pressure is more harmful than was
previously believed.
(B) High blood pressure is sometimes exacerbated
by intake of more sodium than the body
requires.
(C) Excess sodium intake over time often destroys
the body's ability to process excess sodium.
(D) Every human being has a physiological need for
at least some sodium.
(E) Any sodium not used by the body will incr

May I request Gurus to pitch in for this one...

Regards,
Philease
blood pressure unless it is excreted.

Source: Beat The GMAT — Critical Reasoning | Wed Mar 31, 2010 8:18 am

thephoenix: Legendary Member; Posts: 1560; Joined: Tue Nov 17, 2009 2:38 amFollowed by: 5 members; Thanked: 137 times

by thephoenix » Wed Mar 31, 2010 8:56 am

IMO C

ssgmatter: Legendary Member; Posts: 549; Joined: Wed Jan 06, 2010 7:00 amFollowed by: 3 members; Thanked: 16 times

by ssgmatter » Wed Mar 31, 2010 9:07 am

Please explain....

Regards,
Phil

outreach: Legendary Member; Posts: 748; Joined: Sun Jan 31, 2010 7:54 amFollowed by: 3 members; Thanked: 46 times

by outreach » Wed Mar 31, 2010 10:39 am

conclusion- "only persons who have high blood pressure and
whose bodies are incapable of safely processing excess
sodium need to restrict their sodium intake."
A.out of scope.we are talkig abt effects of sodium and not harmflness of BP
B.support the conclusion
C. weakens the conclusion by saying that people without BP but excess intake of sodium can fall in trouble
D. Out of scope
E. supports the conclusion

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ssgmatter: Legendary Member; Posts: 549; Joined: Wed Jan 06, 2010 7:00 amFollowed by: 3 members; Thanked: 16 times

by ssgmatter » Sat Apr 03, 2010 9:05 pm

Not clear....need more detailed explanation....

Regards,
Phil

deepak4mba: Senior | Next Rank: 100 Posts; Posts: 56; Joined: Thu Jul 16, 2009 9:42 am; Location: London

by deepak4mba » Sat Apr 03, 2010 11:03 pm

IMO C.

The conclusion of the statement cautions HIGH BP people only but C presents the case in which normal BP people can also fall into the trap.

Time: 01:35

Whats OA?

sumanr84: Legendary Member; Posts: 758; Joined: Sat Aug 29, 2009 9:32 pmFollowed by: 2 members; Location: Bangalore,India; Thanked: 67 times

by sumanr84 » Sat Apr 03, 2010 11:58 pm

IMO : C
C states that its not HBP rather excess intake of sodium over time that causes indigestion of sodium and thus HBP.
This clearly states an alternate cause and undermines the argument.

I am on a break !!

paddle_sweep: Master | Next Rank: 500 Posts; Posts: 379; Joined: Wed Apr 07, 2010 12:53 am; Location: Chennai,India; Thanked: 3 times

by paddle_sweep » Sun Apr 18, 2010 9:55 pm

What is the OA?

reply2spg: Legendary Member; Posts: 1261; Joined: Sun Sep 14, 2008 3:46 am; Thanked: 27 times; GMAT Score:570

by reply2spg » Wed Apr 21, 2010 1:06 pm

The answer must be C. I think E is not mentioned clearly here. I prephrase the answer. One thing is that people are eating more salt but do not have high BP. But there are people who eat less salt but have high BP (This is my assumption). I tried to find out something, which leads high salt intake in high BP in future. C does the same.

ssgmatter wrote:Studies suggest that, for the vast majority of people
who have normal blood pressure, any amount of
sodium greater than that required by the body is simply
excreted and does not significantly raise blood pressure.
So only persons who have high blood pressure and
whose bodies are incapable of safely processing excess
sodium need to restrict their sodium intake.
Which one of the following, if true, would most
seriously weaken the argument?
(A) High blood pressure is more harmful than was
previously believed.
(B) High blood pressure is sometimes exacerbated
by intake of more sodium than the body
requires.
(C) Excess sodium intake over time often destroys
the body's ability to process excess sodium.
(D) Every human being has a physiological need for
at least some sodium.
(E) Any sodium not used by the body will incr

May I request Gurus to pitch in for this one...

Regards,
Philease
blood pressure unless it is excreted.

reply2spg: Legendary Member; Posts: 1261; Joined: Sun Sep 14, 2008 3:46 am; Thanked: 27 times; GMAT Score:570

by reply2spg » Wed Apr 21, 2010 1:06 pm

ssgmatter wrote:Studies suggest that, for the vast majority of people
who have normal blood pressure, any amount of
sodium greater than that required by the body is simply
excreted and does not significantly raise blood pressure.
So only persons who have high blood pressure and
whose bodies are incapable of safely processing excess
sodium need to restrict their sodium intake.
Which one of the following, if true, would most
seriously weaken the argument?
(A) High blood pressure is more harmful than was
previously believed.
(B) High blood pressure is sometimes exacerbated
by intake of more sodium than the body
requires.
(C) Excess sodium intake over time often destroys
the body's ability to process excess sodium.
(D) Every human being has a physiological need for
at least some sodium.
(E) Any sodium not used by the body will incr

May I request Gurus to pitch in for this one...

Regards,
Philease
blood pressure unless it is excreted.

bichoo: Senior | Next Rank: 100 Posts; Posts: 48; Joined: Mon Dec 07, 2009 3:18 pm

by bichoo » Thu Apr 22, 2010 8:04 am

C for sure

gmatmachoman: Legendary Member; Posts: 2326; Joined: Mon Jul 28, 2008 3:54 amFollowed by: 2 members; Thanked: 173 times; GMAT Score:710

by gmatmachoman » Thu Apr 22, 2010 8:37 am

sumanr84 wrote:IMO : C
C states that its not HBP rather excess intake of sodium over time that causes indigestion of sodium and thus HBP.
This clearly states an alternate cause and undermines the argument.

@suman bhai,

I would call this kind of weakening as "causal reversal" rather than " alternate reasoning typos". Please chk out PSCR bible.

R&D on GMAT algorithm:

https://www.beatthegmat.com/r-d-on-gmat- ... tml#305739

frank1: Legendary Member; Posts: 537; Joined: Fri Jan 22, 2010 10:06 pmFollowed by: 1 member; Thanked: 14 times

by frank1 » Thu Apr 22, 2010 10:31 am

C as it is chained logic...

As it will create problem in body's ability to process sodium which will eventually cause the same result
"bodies are incapable of safely processing excess sodium need to restrict their sodium intake."

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