I have to confess, I have had the same question. My home care nurses gave me a handful of Hollister one-piece pouches to use in an emergency. I measured my stoma with the (what did Jen call it...) "guide thingy" and then cut the wafer to my stoma size. Then when I put the pouch on my stoma I could not see my stoma and I could not tell if the bag was all the way around my stoma or if I had it on top of my stoma and not on my skin where it is suppose to be. Within an hour, I had fecal running down my pants. So, I ran to the bathroom and got another pouch and this time I was very careful and tried to apply the pouch as well as I could without being able to see my stoma. To me, it is like changing your bag in the dark - I can't see what is going on under the pouch. Well, that pouch lasted me for 3 hours and then it leaked as well. So, now I keep the one-piece pouches in my car for an emergency back up. I would LOVE to use a one-piece but I just cannot figure those things out.
Revised Coletomy/ Reset Anastimosis 2006
Revised Colectomy/ Obstructions 2005
Sub-total Colectomy 2001
Prov. 16: 20 Whoso trusteth in the Lord, happy is he.
Zelnorm, Colace, Motilium, Citrate of Magnesium, Nexium, Amitiza, Potassium, Magnesium, Miralax, Milk of Magnesium, Corgard, Glycerin Suppositories, Sorbitol, Bentyl, Senokot