Alrighty to tell you the truth the child wont take the phosphosoda because it is disgusting. For one of my colonoscopies my GI had me drink a ginormous about of Miralax mixed with 64 ounces of gatorade. The Miralax is tasteless, and the only thing that bugged me was that drinking 64 ounces of gatorade in 2 hours got kinda gross, but it was much better than the other junk. I would definitely ask the childs GI if they would consider doing this prep because it worked just the same for me. Clearly the two of us are different sizes so she would probably only require half the amount of Miralax that I did.
Diagnosed: 2003, age 18 (had issues with it since I was 12)
Meds for crohns: Prednisone, Oxycodone, Oxycontin, Remicade,
Other medical issues: Hereditary Spherocytosis (hemolytic anemia) iron deficient anemia, polyarthralgia, ovarian cysts, Migraines
Surgeries: Spleen, Gallbladder, Tonsils, Adenoids, foot of terminal Ileum, Appendix, Ileocecal valve, bit of colon