Why prednisone following surgery?

IV doses are not the same as oral doses, though, so I don't know what that equivalent is. They had me on 300mg IV steroids when I was in recently but then switched me to 40mg oral.

I had to be on prednisone after the first surgery because I was still on it going in to surgery and needed to taper off it for a couple weeks after

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27/F Diagnosed with unspecified UC 11/08 (symptoms for over a year before)
Asacol, Prednisone, Remicade with no success--no remission for over 2 years
8/09 colonoscopy shows that the whole colon is affected
12/18/09 Removal of colon, creation of J-Pouch and ostomy; recessed stoma; 12/30/09 Takedown too soon; RV fistula;1/9/10 Second Ileostomy Surgery;
1/25/10 Stoma Revision Surgery; 3/30/10 Takedown again; 6/9/10 Scope and Biopsy--Diagnosed with Crohns Disease (maybe...)
Tried gluten free and dairy free with no noticeable improvement; Was on TPN and IV fluids 2/10-6/10. Currently:Prednisone 40 mg, Culturelle, D, B12, Iron, Prenatal vitamin, Lomotil, Lortab, Starting Humira 6/28

My blood sugar has never been over 154 before (when I was on 60mg of Pred. last summer). It went as high as 240 in the hospital on the IV steroids. Ugh

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27/F Diagnosed with unspecified UC 11/08 (symptoms for over a year before)
Asacol, Prednisone, Remicade with no success--no remission for over 2 years
8/09 colonoscopy shows that the whole colon is affected
12/18/09 Removal of colon, creation of J-Pouch and ostomy; recessed stoma; 12/30/09 Takedown too soon; RV fistula;1/9/10 Second Ileostomy Surgery;
1/25/10 Stoma Revision Surgery; 3/30/10 Takedown again; 6/9/10 Scope and Biopsy--Diagnosed with Crohns Disease (maybe...)
Tried gluten free and dairy free with no noticeable improvement; Was on TPN and IV fluids 2/10-6/10. Currently:Prednisone 40 mg, Culturelle, D, B12, Iron, Prenatal vitamin, Lomotil, Lortab, Starting Humira 6/28