Q: At what point, during management of DKA (Diabetes Ketoacidosis), addition of Dextrose should be considered, if ketosis persists?

Answer: 250 mg/DL

The 2011 'Joint British Diabetes Societies guideline' recommends the intravenous infusion of insulin at a weight-based fixed rate until ketosis has subsided. Should blood glucose fall below 250 mg/dL, 10% glucose should be added to allow for the continuation of fixed-rate insulin infusion.

Reference:

Savage MW, Dhatariya KK, Kilvert A, Rayman G, Rees JA, Courtney CH, et al. Joint British Diabetes Societies guideline for the management of diabetic ketoacidosis. Diabet Med. May 2011;28(5):508-15.