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51.The following appeared in a medical newsletter. "Doctors have long suspected that secondary infections may keep some patients from healing quickly after severe muscle strain. This hypothesis has now been proved by preliminary results of a study of two groups of patients. The first group of patients, all being treated for muscle injuries by Dr. Newland, a doctor who specializes in sports medicine, took antibiotics regularly throughout their treatment. Their recuperation time was, on average, 40 percent quicker than typically expected. Patients in the second group, all being treated by Dr. Alton, a general physician, were given sugar pills, although the patients believed they were taking antibiotics. Their average recuperation time was not significantly reduced. Therefore, all patients who are diagnosed with muscle strain would be well advised to take antibiotics as part of their treatment."
The author in the argument recommends that all patients diagnosed with muscle strain take antibiotics as part of their treatment to prevent the secondary infections. To support his recommendation, the author cites a preliminary result of a study of two groups. Careful scrutiny, however, reveals several significant flaws in the argument, and thus the recommendation needs to be reconsidered.
To begin with, for an experiment to be accurate, samples of the two groups of patients should be comparatively the same in each item. While for this study, this information is unavailable. Whether they are at the same body condition? Or the first groups may be younger than the other in average, and thus result from their quicker healing. Besides, it is crucial to guarantee that the two groups are of the same severity of muscle strain, which is also neglected by the author. Anyway, the sample itself shows the study’s unconvincing points.
Moreover, the doctors in the two groups are different in capability and habit, which probably leads to the different treatments the two groups received. In detailed, the first doctor, who specializes in sports medicine, may be more experienced in treatment to patients and have some special methods to help patients reach the recovery; while the other, the general physician, may not be that excellent as the first one. Furthermore, treated by an experienced doctor, it is possible that the first group of patients receive more mental effects than the second group. To be an accurate one, the study should arrange the same kind of physician running with the same treatment.
Another element to be considered is whether the sugar used in the second group indeed has no effect on patients. If the sugar plays a negative role on the patients, the result that the first group has a quicker healing may be due to the delay in the second group after using sugar, but due to the antibiotics’ active effects.
Before the final conclusion, it is also vital to point out another flaw concerning the common use of antibiotics. Does every patient suffer from the secondary infection after severe muscle strain? If the answer is not, there is no need to force every one of them to take antibiotics. Further, even we assume the antibiotics do have the effect as it is said above, what we should focus on before we put them into use is that whether they have no side-effect on patients, or whether some patients have allergy reflections after taking them, for example. Without a further research in the secondary and the antibiotics, it is unwise to recommend all patients to take antibiotics.
After scrutinizing the evidence as well as the reasoning carefully, it is clear that we cannot safely reach the conclusion as the author draws. To bolster the argument, the experiment should be made under strict circumstances; the detailed information about the secondary infection should be provided; the further characteristics of the antibiotics should also be given out. Otherwise, the recommendation should not be put into practice, considering the safety of the patients. |
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