Patent ID: 8750978

Claim:
A system, comprising: a first electrode configured to apply a current to an oral or nasal mucosa of a patient; a second electrode configured to detect the applied current from the mucosa and output an impedance measurement related to an electrical impedance of the oral or nasal mucosa; and a monitor operatively coupled to the first electrode and the second electrode and configured to: receive a first impedance measurement prior to a surgical procedure and perform an operation on the first impedance measurement to determine a baseline impedance value; receive a second impedance measurement after or during the surgical procedure and perform the operation on the second impedance measurement to determine an impedance value; compare the impedance value to the baseline impedance value to determine when the impedance value varies from the baseline impedance value; and determine that a patient has a clinical condition comprising gut hypoperfusion, gut ischemia, shock, and/or organ failure when the impedance value varies from the baseline impedance value.