Skip to content
Maidstone, Exeter and Plymouth are now open!
Maidstone, Exeter and Plymouth are now open!

Lactate dehydrogenase (LDH) Blood Test

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

This important enzyme, present in most body tissues, can indicate tissue damage when elevated, making LDH a key general health marker.

  • 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

Gain valuable health insights with One Day Tests Lactate Dehydrogenase (LDH) Blood Test. This important enzyme, present in most body tissues, can indicate tissue damage when elevated, making LDH a key general health marker. High LDH may signify lung disease, anaemia, heart conditions or liver damage, and identifying issues early is key.

Our convenient at-home test kits allow you to check your LDH levels with a simple finger prick. Then, our accredited UK laboratory provides rapid results straight to you. Experience the clarity and convenience of testing LDH in the comfort of your own home. No need for appointments or GP referrals. 

Take control of your health on your terms with One Day Tests LDH Blood Test kits. Gain insights, identify issues early and work with your doctor to optimise your well-being faster. Order yours now. 

About the Lactate Dehydrogenase (LDH) Blood Test

Lactate dehydrogenase (LDH) is an enzyme present in almost all body tissues. It catalyses the conversion of lactate to pyruvate, an essential step in energy production. Tissue injury or cell damage causes LDH levels to rise detectably in the bloodstream.

Measuring LDH can indicate tissue damage stemming from causes like heart attacks, hemolytic anaemia, muscular dystrophy, cancer metastasis, liver disease, lung disease and more. High LDH warrants further investigation. Those with certain pre-existing conditions may need routine LDH testing to monitor disease progression or treatment efficacy.

As LDH is contained in many different tissues, it acts as a general marker of health status rather than indicating specific disorders. However, elevated levels signify an underlying issue that requires medical attention. One Day Tests provides accessible, reliable LDH blood testing with rapid results to aid early detection and easier symptom management.

1 Biomarker


    - Lactate dehydrogenase (LDH) - Total

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.

Lactate dehydrogenase (LDH) is an enzyme that the body uses during the process of turning sugar into energy. LDH is found in many of the tissues and organs, muscles, liver, heart, pancreas, kidneys, brain and blood cells.

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

Lower LDH level indicates that tissue damage is minimal, if any.

Speak to your GP if you are concerned.

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

Elevated levels of LDH and changes in the ratio of the LDH isoenzymes usually indicate some type of tissue damage. Kidney disease and liver disease are possible causes.

Please discuss this result with your GP.

Red flag symptoms for the Lactate dehydrogenase (LDH) Blood Test

Even if your blood tests are normal, you should see a doctor if you have any of the symptoms below as they may be a sign of serious underlying illness:

  • Severe, unexplained muscle pain or weakness 
  • Shortness of breath or trouble breathing
  • Abdominal swelling or jaundice
  • Chest pain, palpitations or other cardiovascular symptoms
  • Easy bruising or bleeding 
  • Severe fatigue, weakness and pale skin

Your Results and Health Dashboard

The results of your Lactate dehydrogenase (LDH) 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 Lactate dehydrogenase (LDH) Blood Test.

You do not need to make any special preparations for this test.

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 Lactate dehydrogenase (LDH) 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 Lactate dehydrogenase (LDH) 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.

Should I get tested for LDH regularly?

For healthy individuals, routine LDH testing is not needed. It may be checked regularly if you have a condition causing tissue damage. Consult your doctor on appropriate screening.

Can certain medications affect LDH levels?

No, LDH testing is not impacted by medications. LDH levels respond to tissue injury rather than external substances.

Why take this test?

Hi, I am Dr. Marco Esposito and here is why it's important to take this test.
  • You want to monitor or diagnose conditions like liver disease, heart attack, or muscle damage
  • You want to monitor heart health
  • You want insight into diagnosing anaemia

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.

This test is most appropriate for those who need to monitor tissue injury or screen for health conditions associated with elevated LDH levels.


    Make your own test panel

Why blood tests are important.