A multi-functional nasogastric tubular device (10) for insertion into a patient includes an elongated flexible body (12) having a pair of spaced apart opposite proximal and distal ends (12A, 12B), a plurality of spaced apart lumens (14) formed in the body (12) so as to extend side-by-side with respect to one another between the proximal and distal ends (12A, 12B) of the body (12) and being open at least at the proximal end (12A) of the body (12), and a temperature sensor (16) disposed on the body (12), such as in one of the lumens (14) of the body (12), and running from the proximal end (12A) of the body (12) to the distal end (12B) thereof such that the temperature sensor (16) is adapted to monitor internal core temperature of a patient and also to serve as a radiopaque element for marking the position of the elongated body (12) in the patient.
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