- Damian
- Diagnostic Tests
- Laboratory tests
- Blood tests
- Potassium – serum
Potassium – serum
+ Material fee
Lowest price from 30 days before discounting PLN 16.00Serum Potassium – Test Description
A test that determines the level of potassium in the blood is designed to evaluate electrolyte balance. Potassium is essential for the proper functioning of cells, especially regarding nerve conduction and muscle contraction. The test is performed for heart or liver diseases and in diagnosing pathological conditions such as kidney dysfunction or hormonal imbalances.
When Should You Test Potassium Levels in the Blood? Indications
The serum potassium test is particularly recommended in cases of chronic vomiting and diarrhea, as well as in situations such as:
- general weakness,
- muscle cramps,
- heart rhythm disorders,
- suspected kidney failure,
- monitoring kidney diseases, hypertension, diabetes, or diuretic therapy.
Avoid drinking coffee and tea for at least 12 hours before the test.
How to Prepare for a Potassium Test?
- Avoid heavy and fatty meals as well as alcohol for 24 hours before the test.
- Do not consume food for 12 hours before the test.
- Drinking a small amount of water in the morning is allowed.
How Is the Potassium Test Conducted?
The blood sample should be taken in the morning. Before the test, the patient should rest for 10–15 minutes in a seated position. Blood is collected into an EDTA tube from a non-compressed blood vessel. This eliminates the risk of cell breakdown and the release of cellular potassium, which could falsify the results. The test usually takes 15–30 seconds.
Serum Potassium – Test Results
For such an important mineral as potassium, normal values range from 3.5 to 5.0 mmol/L. These may vary depending on the laboratory, as different reference values might be presented depending on the method used.
If the result falls within the specified range, it indicates normal electrolyte balance. For values above or below the normal range, consulting a doctor to discuss the test results is recommended.
- When potassium levels exceed the norm (referred to as hyperkalemia), the most common causes include kidney failure, dehydration, diabetes, heart failure, adrenal insufficiency (e.g., Addison's disease), certain medications (e.g., angiotensin inhibitors), or liver diseases.
- When potassium levels are below the normal range, indicating hypokalemia, it may point to significant water loss related to alcohol or coffee consumption or chronic diarrhea and vomiting.
For more information on interpreting test results, click HERE
Why is a potassium test performed?
To diagnose potential imbalances in the body's water-electrolyte and acid-base balance.
What does a potassium test detect?
A serum potassium test is helpful in detecting many conditions, such as diabetes, heart failure, or liver disorders.
What are the symptoms of potassium deficiency?
Typically, these include muscle weakness, heart and kidney dysfunction, or tingling or numbness in the limbs, especially around the hands and feet.
What does a high potassium level in the blood mean?
It may result from kidney failure, aldosterone deficiency, the use of certain medications (such as sartans), or sepsis.
How much does a potassium test cost?
Usually between 15 and 23 PLN.
- Wynik badania dostępny jest w ciągu 3. dni roboczych.
- Możliwość odbioru wyniku w recepcji wybranej placówki bądź online, w zależności od polityki danej placówki.
Informację odnośnie odbioru wyników badań w zależności od placówki >> Sprawdź TUTAJ
Normy potasu
Wartości referencyjne dla potasu wynoszą: 3,5-5,0 mmol/l.
*Powyższe wartości są orientacyjne i mogą się różnić w zależności od laboratorium, w którym wykonywane jest badanie.
Czynniki mogące zaburzyć wynik badania
Na prawidłowość wyniku mogą mieć wpływ, m.in.:
- intensywny wysiłek fizyczny przed badaniem,
- przyjmowanie niektórych leków,
- spożycie alkoholu lub bardzo słonych potraw dzień wcześniej.
Jak postępować w przypadku dodatniego testu na HIV?
W przypadku nieprawidłowych wyników zaleca się konsultację z lekarzem, w celu ich dokładnego omówienia.
W zależności od objawów lekarz może zlecić:
- dodatkowe badania,
- ocenę pracy nerek i serca,
- korektę stosowanych leków,
- zmianę diety i nawodnienia.
Do jakich lekarzy należy się zgłosić?
Cheaper in the package

-15% with MediClub!
A set of medical examinations and consultations, allowing comprehensive diagnostics within 30 hours at the Damian Hospital in Warsaw.

Others also bought

A nephrologist specializes in kidney and urinary tract disorders (conservative treatment), such as kidney stones, kidney failure, kidney cysts, urinary incontinence, and urinary tract infections.