A tubing assembly comprising: a catheter having a proximal end and a distal end and extending in a longitudinal direction, wherein the proximal end and the distal end define a lumen therebetween, and wherein the catheter is configured for placement within a digestive tract of a patient; a stimulation electrode assembly, wherein the stimulation electrode assembly is configured to deliver an electrical stimulation to tissue; an electrical connection for delivering a stimulation waveform to the stimulation electrode assembly; and a recording electrode assembly, characterized in that the recording electrode assembly is configured to: (i) monitor for electrical activity elicited by the tissue in response to the stimulation waveform and communicate the electrical activity elicited by the tissue to a processor in real-time, wherein if the electrical activity elicited by the tissue is in the form of one or more evoked potentials, then it is confirmed that the catheter is placed in the digestive tract, and if the electrical activity elicited by the tissue is not in the form of one or more evoked potentials, then the catheter is not placed in the digestive tract; or (ii) monitor for electrical activity elicited by the tissue by measuring an impedance level of tissue via one or more electrical contacts in the stimulation electrode assembly or the recording electrode assembly, wherein a first level of impedance indicates that the catheter is placed in the digestive tract and a second level of impedance indicates that the catheter is not placed in the digestive tract; and communicate the electrical activity elicited by the tissue to a processor in real-time. a catheter having a proximal end and a distal end and extending in a longitudinal direction, wherein the proximal end and the distal end define a lumen therebetween, and wherein the catheter is configured for placement within a digestive tract of a patient; a stimulation electrode assembly, wherein the stimulation electrode assembly is configured to deliver an electrical stimulation to tissue; an electrical connection for delivering a stimulation waveform to the stimulation electrode assembly; and a recording electrode assembly, characterized in that the recording electrode assembly is configured to: (i) monitor for electrical activity elicited by the tissue in response to the stimulation waveform and communicate the electrical activity elicited by the tissue to a processor in real-time, wherein if the electrical activity elicited by the tissue is in the form of one or more evoked potentials, then it is confirmed that the catheter is placed in the digestive tract, and if the electrical activity elicited by the tissue is not in the form of one or more evoked potentials, then the catheter is not placed in the digestive tract; or (ii) monitor for electrical activity elicited by the tissue by measuring an impedance level of tissue via one or more electrical contacts in the stimulation electrode assembly or the recording electrode assembly, wherein a first level of impedance indicates that the catheter is placed in the digestive tract and a second level of impedance indicates that the catheter is not placed in the digestive tract; and (i) monitor for electrical activity elicited by the tissue in response to the stimulation waveform and communicate the electrical activity elicited by the tissue to a processor in real-time, wherein if the electrical activity elicited by the tissue is in the form of one or more evoked potentials, then it is confirmed that the catheter is placed in the digestive tract, and if the electrical activity elicited by the tissue is not in the form of one or more evoked potentials, then the catheter is not placed in the digestive tract; or (ii) monitor for electrical activity elicited by the tissue by measuring an impedance level of tissue via one or more electrical contacts in the stimulation electrode assembly or the recording electrode assembly, wherein a first level of impedance indicates that the catheter is placed in the digestive tract and a second level of impedance indicates that the catheter is not placed in the digestive tract; and communicate the electrical activity elicited by the tissue to a processor in real-time.