No. Lantus isn’t used to treat diabetic ketoacidosis (DKA).
DKA is a serious complication of diabetes. It occurs when your blood sugar levels are very high but your insulin levels are low. Because insulin isn’t available to move sugar into your cells, they can’t use the sugar as fuel. Instead, your body starts breaking down fat into ketones (a certain type of protein) for energy. High levels of ketones make your blood more acidic, which can harm many organs in your body.
DKA treatment takes place in a hospital setting. Treatment involves using insulin to bring sugar into your cells. However, Lantus isn’t the best type of insulin for this process because it takes too long to start working. Faster-acting insulins such as insulin aspart (Fiasp, Novolog), insulin glulisine (Apidra), or insulin lispro (Admelog, Humalog) are typically used as part of DKA treatment.