Assertion: catheter's use | /r/HasProperty | needed in patient
Facets:
value: primarily
type: DEGREE
Source sentences:
text: The use of a rectal tube to help remove flatus from the digestive tract is needed primarily in patients who have had a recent surgery on the bowel or anus, or who have another condition which causes the sphincter muscles not to work appropriately enough for gas to pass on its own.