There are two ways to supplement concentrated sodium chloride: 1. Oral, if you can eat on your own, sodium chloride can be supplemented by direct oral intake, the dose and number of oral doses according to the doctor’s orders, which has a better therapeutic effect for patients with low to moderate sodium deficiency. 2. Intravenous, if you can’t take it directly orally, you can dissolve concentrated sodium chloride in saline and inject it through intravenous injection, which is slower. The supplementation is slow, 500 ml of saline can dissolve 4 grams of sodium chloride. In the intravenous injection, pay attention to control the drip speed, too fast is likely to cause local bleeding or painful reaction of the blood vessels, and it is recommended that patients should pay attention to the intake of sodium in general.