| A | B |
| levine | single lumen, intermiitent suction only |
| salem sump | double lumen, may use continuos suction |
| miller-abott | mercury tipped intestinaltube carried into instestine by peristalsis |
| jejunostomy | surgically placed into jejunum |
| gastrostomy | surgically placed into stomach |
| PEG | placed into stomach under endoscopy |
| Dobhoff | small flexible nasogastrci feeding tube |
| Duodenostomy | surgically placed into duodenum |