High BG for 3+ hours

I left home earlier today after eating dinner and bolused for dinner. I noticed my sugar starting to spike so bolused a little bit more (I’m using an Omnipod pump). My sugar still wasn’t coming down and I wasn’t able to get home until about 1.5 hours later. I changed my pump and took a lot more insulin. (Dexcom was reading high at this point). My BG is finally starting to come down but I’m still worried about ketoacidosis… need advice, is it urgent to go to the ER? I felt nauseous earlier but have been able to keep fluids down.