Case Series to Evaluate the Identification of Anatomical Markers Using the KANGAROO™ Feeding Tube

Inclusion Criteria: 1. Hospitalized male and female patients in a monitored setting (i.e.; ICU or Step-Down Unit) who require and are eligible for short-term enteral (nasal or oral) feeding per standard of care with an expected duration of at least 3 days. 2. The subject or a legally authorized representative is able to understand and willing to give written informed consent. 3. Be a man or woman of 18 years or older 4. Have uncomplicated naso- and oropharyngeal anatomy based upon a focused physical examination Exclusion Criteria: 1. Women and men under the age of 18 years 2. Female patients who are known to be pregnant or lactating 3. Incarcerated or imprisoned individuals 4. Hemodynamic instability with an inability to maintain a MAP \> 65 mm Hg on vasopressors 5. Patients who are currently enrolled in an investigational or interventional drug or device clinical trial 6. Patients who have been previously enrolled into this study 7. Individuals, who, in the opinion of the Principal Investigator, have any medical, social or psychological condition that would compromise their participation and follow-up in this clinical investigation 8. Known basal skull fractures 9. Unrepaired known GI perforation or leak 10. Recent adequate upper GI bleed that may obscure images 11. Esophageal varices \> Grade 2 12. Subjects with known anomalies precluding gastric or intestinal insertion (via either nasally or orally) 13. Known obstruction of the gastrointestinal tract 14. Known bowel ischemia or any other contraindication for enteral feeding