It would be of utmost importance to go to the ER if your sugars have constantly been on the higher side and you have large levels of ketones in your urine. Even after correction doses, if the sugar levels are not subsiding, you might need an intravenous method to inject it for faster absorption in the bloodstream. Going to the ER will also ensure that the other parameters like sodium, magnesium, and potassium levels are in check. This is because there is usually an imbalance of electrolytes during high ketones.