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Our Cambridge clinic is opening its doors on the 30th of April. Book now!
Our Cambridge clinic is opening its doors on the 30th of April. Book now!

Immunoglobulin M (IgM) Blood Test

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

Immunoglobulin M (IgM) is an antibody prodcued by the immune system as a defence against new infections. This test measures your Immunoglobulin M levels.

  • 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

Safeguard your immune health with our Immunoglobulin M (IgM) Blood Test. Utilise our straightforward home test kits for prompt and dependable results delivered from our CQC-accredited laboratory, usually within a 24-hour timeframe.

Track your IgM levels via our secure Health Dashboard. This all-encompassing service provides vital insights, allowing you to understand your body's immediate immune response, crucial for detecting infections early and maintaining robust health.

Opt for One Day Tests for diligent health monitoring without the need for referrals or enduring long wait periods. Secure your Immunoglobulin M (IgM) Blood Test kit or create an immunoglobulins panel today and take a significant step towards safeguarding your immune system and overall health.

About the Immunoglobulin M (IgM) Blood Test

IgM, IgG, and IgA, serve as crucial diagnostic and monitoring tools. They measure the levels of specific antibodies, each playing a unique role in the body's defence against infections.

Opting for the comprehensive Immunoglobulin Blood Tests through One Day Tests combines medical accuracy with the convenience of home testing, ensuring a thorough assessment of your immune health.

1 Biomarker


    - Immunoglobulin M (IgM)


    Need more biomarkers? Check out our Advanced Antibodies 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.

Being proactive about your immune health is essential, especially for early detection and management of infections. The Immunoglobulin Blood Tests, when used alongside IgG, and IgA, are fundamental to this preventive strategy. They offer insights into the body's diverse immune responses, with each immunoglobulin playing a distinct role in combating infections.

These tests are particularly valuable for individuals at risk of immune system disorders, such as those with a history of recurrent infections, autoimmune diseases, or other complex health conditions.

Red flag symptoms for the Immunoglobulin M (IgM) Blood Test

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

  • Diarrhoea
  • Fatigue or weakness
  • Fever
  • Unexplained weight loss
  • Skin rashes

Your Results and Health Dashboard

The results of your Immunoglobulin M (IgM) 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 Immunoglobulin M (IgM) Blood Test.

There are no special instructions for this test, just ensure you are well-hydrated and avoid caffeine where possible.

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 Immunoglobulin M (IgM) 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 Immunoglobulin M (IgM) 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.

What is the test used for?

The IgM blood test is used to check the health of your immune system and measure your IgM levels.

Why might I need this test?

You might need this test if you are experiencing symptoms that suggest your immunoglobulin levels could be abnormal, such as repeated bacterial or viral infections, chronic diarrhoea, sinus infections, or if you have a family history of immunodeficiency.

Why take this test?

Hi, I am Dr. Marco Esposito and here is why it's important to take this test.
  • To detect recent infections, as IgM antibodies are the first to respond to pathogens.
  • As part of a complete immunoglobulins panel test alongside IgG and IgA.

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.

Choosing to undertake the Immunoglobulin M blood test is a proactive step towards comprehensive immune health management. It empowers you to uncover and address potential immune system irregularities with informed and timely actions.


    Make your own test panel

Why blood tests are important.