. A manual of electro-static modes of application, therapeutics, radiography, and radiotherapy . mployed in making the skiagraph upon the sensitizedplate. The accompanying cut will show the appearance of theskiagraph when taken in this manner. When the skiagraph upon sensitized paper has been de-veloped, it may be immediately mounted upon the cardboardbacking. This advantage, and the fact that the print is a cor-rect representation of the parts and not a negative, are twovaluable features of its employment. The process of making a skiagraph includes several signif-icant steps if the result is
. A manual of electro-static modes of application, therapeutics, radiography, and radiotherapy . mployed in making the skiagraph upon the sensitizedplate. The accompanying cut will show the appearance of theskiagraph when taken in this manner. When the skiagraph upon sensitized paper has been de-veloped, it may be immediately mounted upon the cardboardbacking. This advantage, and the fact that the print is a cor-rect representation of the parts and not a negative, are twovaluable features of its employment. The process of making a skiagraph includes several signif-icant steps if the result is to be satisfactory. Before arrang-ing the patient and apparatus for making the exposure, it isalwavs best to select the tube to be used and test it with afluoroscope, to be certain that the apparatus and tube are inorder. I. Posture the subject in the position which will best show 190 STATIC ELECTRICITY. the object sought. It will often be well to make a fluoroscopicexamination before placing the object in position. If one ofthe extremities of the body is the object, it will rarely be neces-. Fig. 17.—Skiagraph Taken upon Sensitized Taper. sary to place the patient in a recumbent position. In othercases, however, a table should be provided, which will permitthe patient to rest in a comfortable position during the expo- METHOD OF MAKING THE SKIAGRAPH. I91 sure. It is not desirable to undertake an exposure for a skia-graph of the trunk with the patient in a sitting posture, exceptfor good reasons, as in cases of pleurisy with effusion, when itis done to show the level of the fluid in the chest cavity. When taking an abdominal skiagraph, it is always desirableto place the patient in a position in which the object to belocalized shall lie nearest the sensitized plate. II. Place the sensitized plate beneath the object in a posi-tion which shall show the part in good relation to the plate andwhen possible, except when locating a foreign body, place thecorresponding part of the oppo
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