<prompt> Oxygen dissociation curve shifts to right in all exceptDiabetic ketoacidosisBlood transfusionHigh altitudeAnaemia  <response>: Hb-O2 dissociation curve shift to left indicates more affinity of Hb to O2, and thus less delivery of O2 to tissues. In stored blood, 2,3 DPG levels are decreased. Shift to left seen in- Increased pH- Decreased 2,3 DPG, temperature, PCO2- HbF Fetal Shift to right seen in- Decreased pH- Increased 2,3DPG, temperature, PCO2- HbS Sickle cell 