Why can glucose and insulin lower blood potassium levels?
Apr 29, 2023
Source: Cainiu Health
Dr. Pan Yongyuan
Introduction
Insulin can directly activate the Na+-K+-ATPase enzyme on the cell membrane, promoting the shift of extracellular potassium into cells, thereby lowering blood potassium levels. When glucose and insulin are used together, they promote glycogen synthesis, allowing extracellular potassium to enter cells along with glucose for glycogen formation, thus shifting extracellular potassium into cells and reducing serum potassium levels. Patients should ensure adequate rest.
Glucose and insulin can lower blood potassium levels, primarily for the following two reasons. The details are as follows:
1. Insulin directly activates the Na+-K+-ATPase enzyme on cell membranes, promoting the shift of extracellular potassium into cells, thereby reducing serum potassium levels.
2. When glucose and insulin are used together, they promote glycogen synthesis. Extracellular potassium enters the cells along with glucose to synthesize glycogen, thus transferring potassium from outside the cells into the cells and lowering blood potassium levels.
It is important to note that if a patient develops hyperkalemia, they should seek timely medical attention and receive standardized treatment under the guidance of a qualified physician to avoid delays in treatment. During treatment, patients should maintain a light diet, ensure adequate rest, engage in regular physical activity, avoid drinking coffee, and尽量 avoid high-potassium fruits such as bananas, kiwis, and persimmons.
