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Device for determining location of an endotracheal catheter tip
Critical Care Medicine
|February 1, 1984
Abstract:
The location of a catheter's tip in the bronchi may be determined using a stethoscope and an audible sound that has a frequency of 558 Hz and a sound pressure of 136 dB for the adult. The device is easy and safe to use, and has been used in a broad range of patients for over 4 yr without sequelae.