very general question...

Hey, I'm a new nurse. today, i was positioning a resident alongside another nurse when she put the catheter tubing under the resident's leg and a pillow under his foot. i was trained to place catheter tubing over resident leg, securing to either thigh or abdomen depending on gender and having catheter bag on the side of bed resident is facing...rationale being that tubing won't get kinked/compressed, prevents skin breakdown, and less likely to get pulled. the other nurse stated that "urine doesnt go uphill." as for positioning of feet, resident on a roho mattress. I'd place under legs to off load pressure from hells; however, other nurse stating there is peripheral vascular risk, though res has no dx of PVD. having said that, a cushion under heels doesn't seem to protect heels, esp if a roho mattress is already in use. It would seem more reasonable to avoid use of said pillow in the case of PVD. Is there any right answer?