Probing

Probing, the application of a probe for purposes of diagnosis and treatment, requires skill. Methods for probing separate body cavities (Eustachian tube, uterus, lacrimal canal, etc.) are indicated in special sections. Probing of wound channels must be performed under conditions of strict asepsis. At present, probing of wounds for diagnostic purposes is not often used due to the possibility of applying other diagnostic methods (radiological examination) and the fear of introducing infection from superficial layers into deep tissues with the probe. The patient is placed in the appropriate position during probing. The disinfected probe is taken with the thumb and index finger and is slowly, without effort, passed through the wound channel until this can be done without obstruction. When the probe encounters an obstacle, it should not be overcome by pressure, so as not to cause damage and not to create a false passage. On the contrary, the probe is withdrawn slightly back and an attempt is made carefully to pass forward in a different direction. If necessary, the wound channel is incised or drained along the introduced probe. For probing of separate organs, see the respective organs. Lit.: Kaulmann H., "Ober den Nachweis metallischer Fremdkorper 1m menschlichen Körper, Wiesbaden, 1891."