nasogastric intubation. the flexible tube with a rounded end is passed through the nasal cavity to the stomach; the technique requires expert knowledge and care to avoid damage to the nasal conchae and mucosa and to avoid passing medicines or feed into the lungs.he flexible tube with a rounded end is passed through the nasal cavity to the stomach; the technique requires expert knowledge and care to avoid damage to the nasal conchae and mucosa and to avoid passing medicines or feed into the lungs.
â¢ ISM (noun). The noun ISM has 1 sense: 1. a belief (or system of beliefs) accepted as authoritative by some group or school. Familiarity information: ISM used as a noun is very rare.irondism (the doctrine of the Girondists). functionalism (any doctrine that stresses utility or purpose). formalism (the doctrine that formal structure rather than content is what should be represented). expansionism (the doctrine of expanding the territory or the economic influence of a country).
The ISM Code calls for the identification of equipment and technical system that are. considered critical and the procedures set in place to insure th at these systems are. adequately maintained and that there be specific measures established aimed at. promoting the reliability of such equipment or systems.