Physical diagnosis, including diseases of the thoracic and abdominal organs : a manual for students and physicians .. . percussing in different positions. The rapidity with which the blow is struck has amarked influence upon the amount of sound certain cases single blows, with long intervals be-tween, are used for the purpose of determining the easewith which the thorax is thrown into vibration. Whenthey are struck with medium rapidity (but not less thanforty to the minute), the vibrations reach the deeperportion of the lung with equal strength and a clear note PERCUSSION. 83 is ob
Physical diagnosis, including diseases of the thoracic and abdominal organs : a manual for students and physicians .. . percussing in different positions. The rapidity with which the blow is struck has amarked influence upon the amount of sound certain cases single blows, with long intervals be-tween, are used for the purpose of determining the easewith which the thorax is thrown into vibration. Whenthey are struck with medium rapidity (but not less thanforty to the minute), the vibrations reach the deeperportion of the lung with equal strength and a clear note PERCUSSION. 83 is obtained. When the blows are struck too rapidlythere is an accumulation, so to speak, of vibrations andthere occurs an interference of the sound waves. The force of the blow should be the same over corre-sponding portions of the two sides. A correct position for the patient is almost as impor-tant as the technique of the operator. The surfaceshould be bare, but if this is undesirable then the cover-ing should be as thin and soft as possible Males donot object to being stripped to the waist for examination, Fig. but in the female, and especially the young, it is best tohave the surface protected by a soft, thin, smooth dress,sack or shawl. Whether standing, sitting or lying, the patient shouldassume a perfectly easy and natural position, with themuscles relaxed and the positions of the two sides sym-metrical. While the standing posture is the most conve-nient for the examiner, it is best to examine patientswho are weak in either the sitting or lying position, asthe pressure of the finger on the chest is apt to causethem to sway, or to prevent this they brace themselves 84 THE RESPIRATORY SYSTEM. and so cause uneven tension of the muscles of the twosides. In examining patients in bed, care should betaken that the body is straight and the shoulders not un-evenly placed. . It should be remembered that when the patient is mbed and surrounded by pillows the character of the per-cu
Size: 2261px × 1106px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookidphys, booksubjectdiagnosis
