What Is Hyperkalemia?
General information on the causes and symptoms of elevated blood potassium, its relationship with kidney disease and the importance of medical follow-up.
Definition
Hyperkalemia means a blood potassium level above the normal range. Potassium is essential for muscle contraction, nerve conduction and, above all, the regulation of heart rhythm. Its blood level must be kept within a narrow window; both low and high values cause problems.
- Definition
- Elevated blood potassium
- Most common background
- Reduced kidney function
- Significance
- Can affect heart rhythm
- Diagnosis
- Blood test
Causes
The kidneys are the main regulators of potassium balance, excreting the excess in urine. The most common background of hyperkalemia is therefore reduced kidney function. Potassium may accumulate in chronic kidney disease, diabetic kidney involvement and certain hormonal disorders. Some medicines can also raise potassium, which is why people with kidney disease should share all their medicines with their physician.
Symptoms and significance
Mild elevations usually cause no symptoms and are noticed on routine blood tests. Marked elevation may cause muscle weakness, fatigue, tingling, nausea and palpitations. The real significance of hyperkalemia lies in its effect on the heart: severe elevation can lead to serious rhythm disturbances, which is why marked hyperkalemia requires urgent assessment.
Diagnosis and follow-up
Diagnosis is made with a simple blood test. In people with kidney disease, potassium is monitored at regular intervals; dietary adjustment and the treatment plan are personalised by the physician. Self-imposed dietary restriction or medication changes are not recommended; potassium balance is delicate in both directions.
This page is intended as general health information; for diagnosis and treatment, please consult your physician.
Frequently asked questions
Why is high potassium dangerous?
Potassium helps regulate heart rhythm; marked elevation can cause serious rhythm disturbances. A high potassium result should be discussed with a physician without delay.
Which foods are rich in potassium?
Bananas, potatoes, tomatoes, dried fruit, legumes and orange juice are potassium-rich. Whether restriction is needed is decided by the physician or dietitian; healthy people do not restrict these foods.
Why does potassium rise in kidney disease?
The kidney is the organ responsible for excreting excess potassium. As kidney function declines, potassium starts to accumulate, which is why regular blood monitoring is performed.
How is hyperkalemia treated?
Treatment is planned by the physician according to the level, the cause and the person. Dietary adjustment and the treatments the physician considers appropriate are used together; self-treatment is not recommended.
Aymed İlaç Sanayi manufactures authorised medicinal products in urology and nephrology. This page does not contain diagnostic or treatment advice; it is intended as general health information.