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Ultimate TRT Blood Test

Original price £0.00 - Original price £145.00
Original price £0.00
£145.00 - £145.00
Current price £145.00

A test for testosterone replacement therapy or who are on testosterone replacement and need to have their treatment monitored.

  • Biomarkers: 42
  • Turnaround:

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

About the test

This comprehensive health check is designed for those who are considering testosterone replacement therapy or who are on testosterone replacement and need to have their treatment monitored.

Many men are interested to know if the symptoms they are suffering from are due to low testosterone levels and whether these symptoms could be improved with testosterone replacement.

This test will check your testosterone levels, but will also check for other conditions such as kidney disease, anaemia, or thyroid dysfunction that can cause similar symptoms.

Whilst some men may benefit from testosterone replacement, like all medical treatments it is not without risks. Because of this we recommend a health check before you start and then regularly once you are on treatment.

42 Biomarkers


    - White Blood Cell Count (WBC)
    - Red Blood Cell Count (RBC)
    - Haemoglobin (HGB)
    - Hematocrit (HCT)
    - Mean Corpuscular Volume (MCV)
    - Mean Corpuscular Haemoglobin (MCH)
    - Mean Corpuscular Haemoglobin Concentration (MCHC)
    - Red Cell Distribution Width (RDW)
    - Platelets (PLT) (Venous samples only)
    - Mean Platelet Volume (MPV)
    - Lymphocytes (LYM)
    - Monocytes (MON)
    - Neutrophils (NEU)
    - Eosinophils (EOS)
    - Basophils (BAS)


    - C-Reactive Protein (CRP)
    - Creatine Kinase (CK)


    - Testosterone
    - Sex Hormone Binding Globulin (SHBG)
    - Prostate Specific Antigen (PSA)
    - Luteinising Hormone (LH)
    - Oestradiol/Estrogen
    - Follicle Stimulating Hormone (FSH)
    - Prolactin


    - Unbound thyroxine (Free T4)
    - Unbound triiodothyronine (Free T3)
    - Thyroid Stimulating Hormone (TSH)


    - Ferritin


    - Creatinine
    - eGFR


    - Globulin calculation
    - Albumin
    - Total protein
    - Bilirubin
    - Alanine AminoTransferase (ALT)
    - Gamma-GlutamylTransferase (GGT)
    - Alkaline Phosphatase (ALP)


    - LDL cholesterol
    - Non-HDL cholesterol
    - HDL cholesterol
    - Total cholesterol
    - Total cholesterol/HDL ratio
    - Triglycerides


    Not enough biomarkers? Check out the Ultimate Performance Blood Test.


    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:

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.

Although there is no clear evidence that testosterone replacement therapy causes prostate cancer, high testosterone levels can make any pre-existing (and possibly undetected) cancer worse.

For this reason we recommend a physical examination of your prostate as well as the PSA test that is included in this blood test.

PSA is a useful screening test for prostate cancer but it is not perfect so you should be aware of its shortcomings. Many men will have a high PSA but not have prostate cancer.

Testing the PSA in these men can result in them having invasive procedures, such as a prostate biopsy, when there is actually no problem. Similarly, some men will have a ‘false negative’ result – a normal PSA when there actually is underlying cancer.

For this reason, even if your PSA is normal, you should still see a doctor if you have symptoms such as difficulty passing urine, getting up lots at night to pee, or feel that you are not emptying your bladder properly.

Testosterone replacement can also alter your cholesterol levels, cause an abnormally high blood count, affect your liver, and affect the levels of other hormones.

The Ultimate Testosterone Replacement Test therefore checks for all of these things.

Red flag symptoms for the Ultimate TRT 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. 

  • Unexplained weight loss
  • Drenching night sweats
  • Persistent fevers
  • Difficulty passing urine
  • Getting up more than usual at night to pass urine
  • A feeling that your bladder is not emptying properly
  • Progressive and severe back pain

Your Results and Health Dashboard

The results of your Ultimate TRT 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 Ultimate TRT Blood Test.

Take this test between 7am and 10am when testosterone levels are at their highest.

Avoid heavy exercise and sexual activity for 48 hours before the test and do not take the test if you think you have current symptoms of a urinary tract infection.

You do not need to fast before this test but avoid fatty food for at least 8 hours before the test.

If you are taking biotin supplements, stop taking these for 72 hours before you take the 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 Ultimate TRT 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 Ultimate TRT 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.

When should I take this test?

You could consider this test if you want a general health check and are worried your symptoms are due to low testosterone, or if you are already considering taking testosterone replacement.

If you are already taking testosterone, you should consider taking this test 6 months after starting, and then 6-12 monthly after that.

Why do I need to avoid heavy exercise and sexual activity before the test?

Heavy exercise, particularly cycling, can artificially raise you PSA. The same is true for sexual activity.

Does a high PSA mean I have prostate cancer?

No, there is a high ‘false positive’ rate for PSA. Only about a quarter of men with a raised PSA will have prostate cancer.

A high reading should prompt you to have a physical check of your prostate, if you have not done so already, and your doctor may want to repeat the test.

Why take this test?

Hi, I am Dr. Marco Esposito and here is why it's important to take this test.
  • You are worried about low testosterone levels
  • You are taking testosterone replacement therapy
  • You want a general health check that includes a check on hormone levels

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 will tell you whether your symptoms are due to a hormonal imbalance or a change in your hormone levels as you age, for example during the perimenopause or menopause.

This test will help you investigate symptoms including tiredness, weight gain and low mood, as well as problems such as an irregular menstrual cycle or difficulty conceiving.

If you are taking hormone replacement therapy, this test can tell you whether your treatment has effectively restored your oestrogen levels.


    Anxiety, Chronic fatigue, Constipation, Dry skin, Fatigue, Feeling cold, Feeling hot all the time, Fertility problems, Lack of libido, Low mood, Menopausal symptoms, Muscle cramps, Palpitations, Testosterone, Tiredness, Weight gain, and Women

Why blood tests are important.