<prompt> Shift of oxygen binding curve to the left occurs because ofIncreased 2,3-DPGIncreased temperatureIncreased PCO2Stored blood  <response>: Causes of the shift to the left include:Decreased Hincreased pH.Decreased 2,3-DPG.Stored blood.Polycythemia Decreased temperatureDecreased P CO2Causes of the shift to the right include:Increased H decreased pHIncreased 2,3-DPGIncreased temperatureIncreased PCO2 