Medical Diagnosis, With Special Reference to Practical Medicine

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Excerpt from Medical Diagnosis, With Special Reference to Practical Medicine: A Guide to the Knowledge and Discrimination of DiseasesBut an acquaintance with semeiology is not the sole guide to diagnosis, nor does it at once help to a recognition Of the actual malady. There are few symptoms in themselves dis tinctive, and Often a symptom may be due to one Of several causes. Semeiology informs us of these different causes, but to find out the precise meaning of the abnormal manifest ation in. An individual case, we have to draw our inference from all the signs encountered - to compare them with each other, to seek out those that are in the background. We are thus arriving, step by step, at the explanation of the morbid appearances, the starting-point in deduction always being what is known of the affection whose presence is suspected, and whose symptoms we are contrasting with those before us. For the conclusion to be valid and exact, it is of course requi site that each part of the testimony have the proper position assigned to it. In reasoning correctly on symptoms, the same laws apply as in reasoning correctly on any other class of phe nomena: the mental process is the same, the facts have to be sifted and weighed, not merely indiscriminately collected. And while the intellectual act is being performed, much col lateral evidence is to be sought for before a final judgment is given, especially is it necessary to view the symptoms with constant reference to the age, sex, and habits of the patient, and to the circumstances amid which the disorder develops itself.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.