In spite of the standard prep for renal artery duplex exams, our patients

have been extremely gassy.  We work in an out patient facility, and depend

on the patients to follow through with the prep.  We ask them to eat only

lean meat, boiled or broiled the night prior to the study; we ask the

eliminate the consumption of fruit, vegetables (especially onions,broccoli,

cauliflower, cabbage) and dairy products; we suggest boiled noodles or

potatoes without butter, sour cream, or heavy sauces to accompany their

meat.  They are instructed to take several dosages of over-the-counter anti-

gas product with lots of water. In spite of these instructions, they are

still producing amounts of intestinal gas that sometimes inhibits complete

interrogation of the abdominal vasculature.  Actually, sometimes I think

their large intestine is in need of evaculation, especially when imaging is

undoable in the upper abdomen, where the transverse colon lies, and no

peristalsis is seen in that region. Many of them have a large abdominal

girth, and that might be part of the problem.  Has anyone out there

tinkered with their prep to perfection, and willing to share your findings.

Thank you,

Elaine



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