The formal name for hypertonic dehydration is hypertonic dehydration. In hypertonic dehydration, there is a loss of both water and sodium in the body, and more water is lost than sodium, which is why there is a relative excess of sodium in the body. The blood is also relatively high in sodium and shows hypernatremia when blood tests are drawn. Since there is more water deficiency than sodium deficiency, treatment should be done with water first and sodium second, and those that can be taken orally should be rehydrated orally first, while those that cannot be taken orally can be rehydrated by infusion. 5% glucose solution is preferred for infusion, 10% glucose solution can also be used, but be careful not to make up too much or too fast. Because the body is also lack of sodium, so the appropriate hydration to start replenishing sodium.