This is a difficult examination, so all patients should be given a
hypotonic agent (1.0 mg Glucagon or 20 mg Buscopan). A double
contrast study is ideal method of investigation.
Polibar Plus (105% w/v) barium diluted to about 45% w/v is
used.
A large 18F Foley catheter, with the balloon inflated to
secure a seal, is used.
Air is insufflated after barium has reached cecum.
