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Creatine Kinase (CK) Blood Test

Original price £39.00 - Original price £39.00
Original price
£39.00 - £39.00
Current price £39.00

Elevated CK levels may indicate muscle damage or disease, over exercise or other issues such as myocardial infarction or muscular dystrophy.

  • Biomarkers: 1
  • Turnaround: 1-2 days

Simple and accurate blood test from a laboratory you can speak to.

Step 1. Choose sample collection option

Currently selected option: HOME KIT via Royal Mail Tracked 24

  • Available everywhere in mainland UK.
  • Includes everything you need to take a safe and suitable blood sample in about 15 minutes.
  • Post the sample back to our laboratory via Royal Mail Tracked 24.

Re-test guarantee

Stay ahead of the curve by understanding your muscle and heart health with our Creatine Kinase (CK) Blood Test for monitoring of muscle, cardiac and heart functions.

This test is available either via our user-friendly home test kits, for confidential sampling and quick results, usually within 24 hours, from our CQC-accredited lab, or a visit to one of our clinics for a venous blood draw.

Monitor your CK levels effortlessly through our secure online Health Dashboard. Our comprehensive health service equips you with the knowledge you need to make well-informed lifestyle adjustments and take proactive measures.

With One Day Tests, you can expect a future of empowered health, free from the constraints of referrals and waiting lists. Order your CK Test kit today and step into a world of proactive health management.

About the test

Creatine Kinase (CK) is an enzyme predominantly found in the heart, brain, and skeletal muscles. The CK Blood Test measures the levels of this enzyme in your bloodstream, providing crucial insights into muscle and heart health.

Elevated CK levels can indicate muscle damage, strain, or heart-related issues. On the other hand, lower-than-normal CK levels could signify chronic muscle diseases or other underlying conditions.

At One Day Tests, we are committed to offering you a complete picture of your health. Our CK Blood Test serves as a vital tool for timely intervention and effective management of potential health risks.

1 Biomarker


    - Creatine Kinase (CK)


    Need more biomarkers? Check out our Aches and Pains Blood Test

Most of the biomarkers we offer in the "ready made" panels are also available separately. So if your favourite test panel is missing a biomarker you would like to have, no problem, you can add whatever you need to one of our standard panels using the "Pick-n-mix" options, such as this one.

    For most biomarkers our usual turnaround time is 24-48 hours, or less, from the time your sample is in our lab. We do not wait for all the results to complete before sending them to you, so you may start receiving results the same day for most cases, or as results become available.

    We are extremely proud of our very short turnaround times and a very efficient laboratory processes. Whilst we accommodate the shortest of time scales, with some results available within hours, for this particular test the usual turnaround time is:

    1-2 days

Doctor's notes

Hi, I am Dr. Adam Staten and here's my view on this test as a GP and Clinical Director at One Day Tests.

Creatine Kinase (CK) is an enzyme protein, mostly found in your heart tissue, skeletal muscles and in the brain. Appropriate levels of CK are essential for healthy muscle work in the heart and body movement.

Reference ranges

If your indicative creatine kinase level is lower than the reference range for our laboratory:

Low CK levels in blood are normal and are not usually a cause for concern.

You can discuss these results with your GP.

If your indicative creatine kinase level is higher than the reference range for our laboratory:

Elevated levels of CK can point to an injury or disease of the muscles, heart, or brain, specifically muscular dystrophy, inflammation of skeletal or heart muscles, strokes, or brain injuries.

Please discuss this result with your GP.

Red flag symptoms for the Creatine Kinase (CK) Blood Test

Even if your blood test is normal, you should still see your doctor if you have any of the symptoms below. 

  • Persistent fatigue
  • Unexplained swelling
  • Changes in urinary frequency
  • Change in or loss of appetite
  • Persistent nausea
  • Itching or skin rashes

These symptoms may indicate underlying muscle-related issues that require further evaluation and medical attention. Your doctor will be able to provide personalised guidance and interpretation of your CK blood test results in the context of your symptoms.

Your Results and Health Dashboard

The results of your Creatine Kinase (CK) Blood Test will be emailed to you as a secured PDF file, ready for your GP and will also be uploaded to our Health Dashboard area of the website. It’s a unique and powerful tool, powered by our in-house clinical analysis research, to match your biomarkers across test panels and symptoms, as well as provide clinical commentary on all individual biomarkers you tested for.

The health dashboard will also provide "panel level" commentary - a birds eye view of the biomarkers that were tested. This feature allows you to view your test results and clinical commentary, and compare them to previous results, giving you a clear understanding of how your health is progressing.

By using the Health Dashboard, you can identify changes in your biomarkers and make necessary adjustments to your lifestyle. This added value is immense, as it empowers you to monitor your health and make informed decisions about your well-being.

It's free and is available with all of our tests.

Save on continuous monitoring with our subscription plan

The best way to look after your health is to do so regularly. This is easy to do with our continual monitoring plans which give you a discount on future blood tests. You choose the frequency and we'll do the rest.

When you purchase a subscription, we will deliver your home test kits or allow you to book appointments in line with your chosen frequency. You will be able to track your biomarkers over time in our powerful Health Dashboard, where results will be automatically updated for you. There is a minimum of 3 tests with any subscription, after which you can pause/restart/cancel at any time.

Special instructions

Hi, I am Stefania Brown, I am the Laboratory Manager at One Day Tests and here are the lab's special requests for the Creatine Kinase (CK) Blood Test.

There are no special instructions for this test, just make sure you are well-hydrated and avoid caffeine before taking your sample.

Venepuncture appointment - how to prepare

If you are coming into one of our clinics for the test, this is what you need to do before you arrive:

  • Drink plenty of water about an hour before the appointment.
  • Avoid coffee/tea/energy drinks. Water is good!
  • That’s it! We’ll do the rest.

Home test kit for Creatine Kinase (CK) Blood Test - how it works

Our blood test kits are simple and convenient.

The most important step in doing a blood test at home is to read the instructions very carefully. The process is very simple, but there are a few pitfalls you need to be aware of - you will save yourself a lot of time if you do it right the first time around!

  • Full printed instructions will arrive with your kit - please read them carefully.
  • Drink plenty before taking the sample and warm your hands up in the sink with warm water for a few minutes. This will make your blood flow much better.
  • Fill the tubes to the top line. We don’t need much blood; filling tubes to the top line is about 15 drops of blood.
  • Post the samples on the same day you take them, before midday, Monday to Thursday. If you post it any other time it might get to us late or be stuck at a sorting office over the weekend. You will then have to do it again.
  • Package the sample in the same box the kit came in. Otherwise, Royal Mail or DPD will reject it. The sample tubes go into a pouch, then into a cardboard box, and then into a return envelope. All of this is provided in the kit: please use it.

We look forward to receiving your sample in our lab!

How the finger prick home test kit for Creatine Kinase (CK) Blood Test works - from Dr. Adam Staten

Why choose us?

Hello! My name is Dr. Vinesh Mistry, I am part of the GP team here at One Day Tests and here is why you should trust us to test your blood.

We run our own regulated laboratories and our own accredited clinics. We manufacture our own approved home sample collection kits. Your results are looked after by our fantastic clinical governance team and our super-talented biomedical science team.

When you book your test with us - you book directly with the lab. This means accuracy and responsible duty of care, direct access to the provider and extremely fast turnaround times.

Finally, our customer services rock! You can ask the lab a question any time or you can speak to a real human. It's good to WhatsApp, email on or give us a call on 0845 527 07 67.

Frequently Asked Questions

Hi, I am Lana Nela, Lead Nurse, and here is what we are frequently asked about this test.

Creatine kinase vs creatinine blood test: what is the difference?

The primary distinction between creatine kinase (CK) and creatinine blood tests lies in what they assess and their respective objectives. A creatine kinase test evaluates the concentration of the creatine kinase enzyme, mainly found in muscles. High CK levels can suggest muscle damage due to intense physical activity, injury, or specific medical issues.

A creatinine blood test gauges the amount of creatinine, a byproduct of muscle metabolism that the kidneys filter out. Elevated levels of creatinine could be a sign of compromised kidney function. Although both tests require a blood sample, they offer unique insights: CK focuses on muscle health, while creatinine is a marker for kidney performance.

Do I need to fast for my Creatine Kinase Blood Test?

Fasting is not required for the Creatine Kinase (CK) Blood Test.

Why take this test?

Hi, I am Dr. Marco Esposito and here is why it's important to take this test.
  • Assessing muscle health and detecting signs of muscle damage or overexertion, especially for athletes or individuals engaged in intense physical training
  • Monitoring the impact of training regimens on muscle tissue and optimising performance
  • Investigating suspected muscle-related symptoms or conditions to aid in diagnosis and treatment planning
  • Evaluating the effects of certain medications or substances on muscle function
  • Assessing muscle recovery and evaluating the effectiveness of interventions or therapies

Is this test right for you?

Hi, I am Sandeep Patel, I am the Laboratory Director at One Day Tests. Here are the symptoms that you may wish to address with this test.

Given the crucial function of muscles in numerous bodily activities, the CK blood test is indispensable for evaluating muscle well-being and identifying indications of wear and tear or excessive strain.

For sports enthusiasts or those involved in rigorous physical exercise, this test serves as a valuable tool for tracking the effects of workout routines on muscle tissue and fine-tuning athletic performance.

Should you encounter symptoms related to muscle issues or suspect conditions affecting the muscles, the CK blood test can assist in both diagnosis and devising a treatment strategy. 

For those with a familial history of muscle ailments, this test can be especially useful in pinpointing possible risks.


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