What is this test?
Potassium is a vital electrolyte for heart rhythm and muscle function. Because both low and high levels can affect heart rhythm, it is monitored regularly, especially in people taking blood pressure medication or diuretics.
When is it requested?
Assessment of electrolyte imbalance
What does a high Potassium result mean?
High potassium (hyperkalemia) is sometimes a false result caused by cells breaking during the blood draw; a true high level can affect heart rhythm.
- Hemolyzed sample, prolonged tourniquet or fist clenching (false high)
- Some blood pressure drugs (ACE inhibitors, ARBs) and potassium-sparing diuretics
- Potassium supplements or potassium-based salt substitutes
- Reduced kidney function
- Uncontrolled diabetes or acid-base disorders
- Adrenal insufficiency (Addison's disease)
- Severe tissue injury, burns or muscle breakdown
What does a low Potassium result mean?
Low potassium (hypokalemia) is mostly linked to diuretics or losses from vomiting and diarrhea; it can cause muscle weakness and rhythm problems.
- Diuretic (water pill) medicines
- Vomiting, diarrhea or laxative use
- Poor nutrition or a potassium-poor diet
- Magnesium deficiency
- Medicines that shift potassium into cells, such as insulin or asthma inhalers
- Excess aldosterone (hyperaldosteronism) or Cushing's syndrome
My result is outside the reference range. What should I do?
An unexpected high result is often confirmed with a new blood sample. If you take heart medicines or diuretics, share the result with your doctor; seek care promptly for palpitations or marked weakness.
Reference ranges depend on the method, age and sex; always use the range printed on your report. This information is for general guidance only; consult your doctor for diagnosis and treatment.
Sample information
- Sample type: Serum
- Tube / container: Yellow-top tube
- Sample volume: 1 mL
Preparation
Centrifuge the sample before storage; in samples left as whole blood for a long time, potassium values increase.
Testing and results
- Method: ISE
- Run schedule: Daily
- Turnaround time: 3 hours
Price and appointment
Add the test to your list to receive a price quote by e-mail, or call +90 850 640 07 30 / message us on WhatsApp (+90 537 301 22 14). You can have the test done at our branches or with our home blood collection service. Results can be viewed online with your Turkish ID number (or passport number for foreign nationals).