Patient's question:
Why does hypokalemia not reappear before dehydration correction? Why should potassium be supplemented when urine is detected? What kind of help do you need: Why does hypokalemia not reappear before dehydration correction? Why should potassium be supplemented when urine is detected?Doctor's answer:
Hello: Hypokalemia is often caused by prolonged constipation, the use of diuretics such as furosemide, long-term administration of potassium-free fluids to fluid-receiving patients, vomiting, fasting, etc. When patients lose water, the extracellular fluid volume decreases, so the symptoms of hypokalemia are often not reappeared. When fluid supplementation is sufficient, the extracellular fluid volume increases, potassium is dissolved in the blood, so the symptoms of hypokalemia will reappear. When patients have no urine, it indicates that the blood volume of the patient is severely insufficient, the extracellular fluid volume in the body of the patient is relatively small, and at this time the potassium ion concentration can be normal, so it is necessary to expand the blood volume and see urine before supplementing potassium to avoid the risk of recurrent hyperkalemia.