When supplementing potassium for hypokalemia, the following should be noted:

1. Closely monitor the blood potassium levels. Supplement 60-80 mmol/L of potassium, or recheck the blood potassium level within 1-4 hours after supplementation.

2. If the rate of potassium supplementation exceeds 10 moles per hour, continuous ECG monitoring should be maintained, closely observe the changes in the ECG, and prevent the occurrence of life-threatening hyperkalemia.

3. The rate of potassium supplementation for patients with regenerative dysfunction should be 50% of that for patients with normal kidney function.

4. The daily amount of potassium supplementation should not exceed 100-200 millimoles.

5. Try not to use peripheral veins for high-concentration potassium supplementation.

6. Use sodium chloride solution to dilute potassium-containing solutions, and it is not recommended to use glucose or low molecular weight dextrorotatory sugar as the carrier.