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Potassium Blood Test
Potassium Blood Test
Potassium Blood Test
Potassium Blood Test

Potassium Blood Test

Potassium in the body is responsible for regulating fluid balance and controlling the electrical activity of the heart and other muscles. This test measures the levels of potassium in your blood.
Blood sample 1 biomarker included 2 working days turnaround

What's included?

Biomarker profile

  • Other

Other (1 Biomarker)

Potassium is an electrolyte vital for cell metabolism which helps transport nutrients into cells and removes waste products out of cells. It is required to help transmit messages between nerves and muscles and is particularly important in regulating how the heart beats.

The potassium test may be used to help diagnose and/or monitor kidney disease, the most common cause of high blood potassium. Please note, because potassium is not stable in postal samples, this test must be carried out at our London laboratory.

Dr Sam Rodgers MBBS, MRCGP

3 simple steps

  • Take the test

    Take the test - either using your kit or visit a clinic.
  • Post your sample

    Send your sample in the freepost pack to our fully accredited lab.
  • Get your results

    Get your doctor reviewed results on
Expert interpretation<br>
of your results

Expert interpretation
of your results

One of our team of doctors will review your results and give you personalised advice based on your medical history, lifestyle and health and fitness goals.

Your personal<br>
health centre

Your personal
health centre

Discover the easy way to track your health through our online portal, View your results with doctor's advice, monitor any changes over time and see the improvements you can make to your health with simple lifestyle changes.

Questions? Let us help

Questions? Let us help

Our customer care team are on-hand to help you find the test that's right for you. Get in touch via phone, live chat or email.

Laboratories you can trust

Trusted by the NHS and private clinics alike, you can be sure of the highest testing standards from our partner laboratories

What our customers say

We ask every Medichecks customer about their experience - read what they have to say


Our tests are not a substitute for seeing your doctor, especially if you are suffering symptoms. Our doctors will interpret your results based on the information you have provided, but will not diagnose, consult or provide any treatment. You will be advised to see your doctor for any necessary follow-up action.