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The rate of health complications of patients on intravenous (IV)

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The rate of health complications of patients on intravenous (IV)  [#permalink]

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New post 30 Aug 2015, 13:57
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The rate of health complications of patients on intravenous (IV) therapy at a particular hospital was higher than usual. Government inspectors found that the typical IV solutions used in this hospital had somewhat high concentrations of sodium and potassium, which were raising patients' blood pressure and taxing their kidneys. The government inspectors mandated lowering the sodium and potassium in these IV preparations, and threatened with a possible government fine. In compliance, the hospital lowered the sodium and potassium levels in the IV solutions to the correct levels. Nevertheless, patients on IV therapy at that hospital continued to have a high rate of health complications.

Which of the following, if true, most helps to explain why acting on the government inspectors' recommendations failed to achieve its goal?

A) The change in IV solution procedure meant a number of related legal documents had to be renegotiated and rewritten, at great cost.
B) When sodium and potassium levels in the blood fall below their baseline level, it can damage cells throughout the body by reverse osmosis.
C) It is typical for a patient's appetite to increase to healthy levels once they have completed a course of IV therapy.
D) A high proportion of patients at this hospital are older, and older patients are more vulnerable to infections that can accompany IVs.
E) Because the findings were published in the news, some patients have chosen to use another hospital in the region.

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Re: The rate of health complications of patients on intravenous (IV)  [#permalink]

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New post 31 Aug 2015, 03:56
Please explain why choice B is wrong?
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Re: The rate of health complications of patients on intravenous (IV)  [#permalink]

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New post 31 Aug 2015, 04:06
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raj44 wrote:
Please explain why choice B is wrong?


Hello raj44

The B is wrong because the argument says that "The government inspectors mandated lowering the sodium and potassium in these IV preparations"
Lowering does not mean that they make low levels. They just make normal levels.

And answer B talks about low level.

The answer D gives us alternate explanation why these patiens have a high rate of health complications.
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Re: The rate of health complications of patients on intravenous (IV)  [#permalink]

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New post 31 Aug 2015, 04:19
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When sodium and potassium levels in the blood fall below their baseline level, it can damage cells throughout the body by reverse osmosis.
firstly, government ofiicial's recommendation was to lower the sodium and potassium levels in the IVs not blood. and secondly it has already mentioned that the levels have been lowered to correct level.

answer should mention some other reason why these correct levels of salts didn't achieve officials goal.
only D mentions it.

please comment on my reasoning.
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Re: The rate of health complications of patients on intravenous (IV)  [#permalink]

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New post 05 Sep 2016, 20:16
Explanation of the premise
Too many complications.
People identified IV to be the cause.
Investigation was done.
Errors were found.
The hospital was asked to correct the errors or face fine.
The hospital corrected the errors.
But, the patients were still having complications.

Is something wrong with the patients? Is some other infection troubling people?

Only D identifies the same. Hence. D
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Re: The rate of health complications of patients on intravenous (IV)  [#permalink]

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New post 19 May 2018, 07:00
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A higher proportion is older, some some are not. So, the rate should decrease at least a little. Please correct me if I am wrong.
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Re: The rate of health complications of patients on intravenous (IV)  [#permalink]

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New post 22 May 2018, 06:54
Quote:
Nevertheless, patients on IV therapy at that hospital continued to have a high rate of health complications.


After the lowering the levels, the patients continued to have a high rate of health complications. if ~70% patients were affected before, then after the lowering the levels we still have ~70% of patients affected by heath complications

Bottom line - there is no change

Quote:
B) When sodium and potassium levels in the blood fall below their baseline level, it can damage cells throughout the body by reverse osmosis.


but if option B is true, then all patients must be affected which contradicts the conclusion

Hence, option D is right choice
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Re: The rate of health complications of patients on intravenous (IV)  [#permalink]

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New post 06 Aug 2018, 16:28

Official Explanation


There was a problem with IVs at this hospital. The government thought they isolated the cause—high concentrations of sodium & potassium—and the hospital took care of that. Nevertheless, the overall problem remains. This is a paradox. We need something else that would cause patients as this particular hospital to have a higher than normal rate of health complications from IV therapy.

(D) is the credited answer. If this hospital has more old folks, and old folks are more likely to have health complications from IV therapy, this would completely explain why this particular hospital has higher rates.

(A) is irrelevant: how many legal documents had to be processed in one way or another is not going to have any effect on how many patients have health complications from IV therapy.

(B) is irrelevant. The hospital lowered the sodium and potassium to "correct levels," so concentrations below baseline level are not the issue here.

(C) is irrelevant. This statement concerns folks who have completed their course of IV therapy, whereas this paradox to be resolved concerns folks who get complications during their IV therapy.

(E) is ambiguous. Some patients, hearing this news chose to go elsewhere. What does this imply for the rate of health complications among patients receiving IV therapy? That's unclear. Were the patients who still came to this hospital, on average, in better or worse health than the pool that typically would have come? Were there any commonalities among the health conditions of the folks who chose not to come to this hospital? We don't know. It's possible that, if we had more information, this statement could be relevant, but in the absence of clarification, this doesn't explain anything.
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Re: The rate of health complications of patients on intravenous (IV) &nbs [#permalink] 06 Aug 2018, 16:28
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The rate of health complications of patients on intravenous (IV)

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