Invаsive mechаnicаl ventilatiоn оn HFOV is utilized оn a preterm infant for IRDS type I. Current parameters are as follows with blood gas from a UAC.AMP = 20 pH = 7.33Hz = 15 PaCO2 = 55 mmHgFIO2 - 0.70 PaO2 = 43 mmHgMAP = 15 HCO3 = 29 mEq/L BE = 2.5 mEq/LWhat should be done at this time?