Kidney transplant assessment (Assessment of suitability for kidney transplantation)
A series of tests, scans and consultations to work out whether a kidney transplant is right and safe for you, and to prepare you for the waiting list or a living-donor transplant.
✓ Medically reviewed by a GMC-registered consultant · last reviewed September 2026 · next review September 2027 · how we review
In short
- The assessment decides whether a transplant is right and safe for you; it is not the operation and not a guarantee of being listed.
- It checks your heart, lungs, blood vessels and infection or cancer risk, alongside blood group and tissue typing, because transplant means major surgery and lifelong medicines.
- A living-donor transplant is usually quicker (often a few months of tests); the average wait for a deceased-donor kidney in the UK is around 2–3 years, and longer for some blood groups and tissue types.
- Ask what would make you suitable or not, what the realistic wait is for you, and whether a living donor is an option.
A plain-English summary. The detail — including risks and recovery — is below.
At a glance
A general guide. Your specialist will give you advice for your situation.
Identifies whether a transplant is likely to be safe and worthwhile for you
Significant heart, lung or other illness that makes major surgery or lifelong immune-suppressing medicines too risky.
Several appointments and tests over weeks to months. You can usually carry on with normal life and dialysis between them.
A clear, jointly made decision explained honestly, with reasons.
Several appointments and tests over weeks to months. You can usually carry on with normal life and dialysis...
The transplant team meets to decide on suitability. You may not get a firm answer at a single clinic visit, as the...
You are activated on the deceased-donor waiting list, or a date is planned for a living-donor transplant. You may...
You stay under regular review, with repeat tests and updated antibody checks, and must be reachable when a kidney...
What is a kidney transplant assessment?
A kidney transplant assessment is the work-up done before a transplant to check whether one is right and safe for you. It is not the transplant itself. The aim is to make sure your body is fit enough for major surgery and lifelong anti-rejection medicines, to find anything that needs treating first, and to plan whether you might receive a kidney from a living donor or from the deceased-donor waiting list.
The assessment involves blood tests (including blood group and tissue typing), checks of your heart, lungs and blood vessels, screening for infection and sometimes cancer, imaging, and consultations with the transplant team. You may also see a transplant surgeon, a specialist nurse, and sometimes a psychologist or other specialists.
A transplant is generally the best treatment for kidney failure for people who are suitable, but it is not right for everyone, and the assessment is honest about that. After all the tests, the transplant team meets to decide whether you are suitable and, if so, how to proceed.
This guide explains what the assessment involves and the realities of waiting and living donation. It is not a decision or a guarantee that you will be listed.
Types, options & approaches
There may be different ways to do this. The right approach depends on the clinical question and your circumstances.
Living donor versus deceased-donor (waiting list)
| Aspect | Living donor | Deceased donor |
|---|---|---|
| Timing | Often a few months of tests, then planned | Average wait around 2–3 years in the UK |
| Predictability | Planned date when both are ready | Unpredictable; depends on a suitable kidney becoming available |
| Donor | Healthy volunteer, fully assessed | From someone who has died and donated |
| Outcomes | Often very good, sometimes before dialysis is needed | Good, but usually after time on dialysis |
Waiting times vary by blood group, tissue type, antibody levels, age and centre. Your team will explain what is realistic for you.
Preparing for your test
- Bring an up-to-date list of all your medicines, allergies and past operations.
- Gather your medical and dialysis history, and details of your kidney condition.
- Be ready to discuss your general health, smoking, alcohol, weight and any heart, lung or circulation problems.
- Think in advance about whether you have anyone who might consider being a living donor, and ask how that is explored.
- Make sure your vaccinations and dental health are up to date, as these are often checked.
- Bring details of any cancer screening you have had (such as cervical, breast or bowel screening).
- Write down your questions, including what would make you suitable or not, and what the realistic wait is for you.
What happens
The assessment is usually spread over several visits rather than one appointment. You will have blood tests, including blood group, tissue typing and antibody tests, and screening for infections. Your heart and lungs are checked with tests such as an ECG, an echocardiogram, sometimes a stress test, a chest X-ray and breathing tests.
Scans, often of the blood vessels in the groin, check that there is a suitable place to attach a new kidney. You will meet members of the transplant team — typically a transplant doctor, a surgeon and a specialist nurse — to discuss the operation, the lifelong anti-rejection medicines, and the risks and benefits for you. Some people also have a psychological assessment, particularly if there have been difficulties keeping to treatment.
If you have a potential living donor, they go through their own separate, careful assessment to make sure donating is safe for them. Once your tests are complete, the transplant team meets (a multidisciplinary meeting) to decide whether you are suitable. If you are, you can be activated on the deceased-donor waiting list, or prepared for a planned living-donor transplant.
Is this test right for me?
A good consultation should explore whether it's the right choice for you now — including reasons to wait or consider something else.
May not be suitable if…
- Significant heart, lung or other illness that makes major surgery or lifelong immune-suppressing medicines too risky.
- An active infection or cancer that needs treating or clearing first.
- Being unlikely to benefit — for example a very limited life expectancy from other conditions.
- Situations where the risks of surgery and lifelong medicines outweigh the likely benefit for that individual.
- An inability, without support, to take the strict daily anti-rejection medicines safely.
Delay or rearrange if…
- You have an active infection, unhealed dental problems or an unstable medical condition.
- Recent heart problems or other illness needing treatment and stabilising first.
- Outstanding cancer screening or investigation of a suspicious finding.
- Significant unintentional weight changes or other issues affecting fitness for surgery.
- Personal circumstances that currently prevent safe management of post-transplant care.
Alternatives to discuss
- Continuing dialysis (haemodialysis or peritoneal dialysis) as ongoing treatment.
- Conservative kidney management, focused on symptoms and quality of life, where transplant is not suitable.
- Pursuing a living-donor or paired/pooled donation route to shorten or avoid the deceased-donor wait.
- Reassessment at a later date if a current barrier to transplant can be resolved.
Before you decide
Use this as a shared-decision checklist. The aim is not just “can this be done?”, but whether it is right for you, now, with the risks and alternatives clearly understood.
What matters most to me?
Think about symptoms, daily life, work, caring responsibilities, sport, fertility, travel, appearance and anxiety — the right choice depends on your priorities, not just the medical facts.
What are all my options?
Ask about waiting, monitoring, medicines, rehabilitation, a smaller or larger procedure, a different test, NHS referral, or a second opinion where that would help.
What would make me pause?
Active infection, pregnancy, unstable medical problems, smoking, medicines that increase bleeding, poor support at home, or feeling pressured are all reasons to slow down and get tailored advice.
What happens if I do nothing today?
For some problems, waiting is safe; for others, delay can make treatment harder. A good consultation should explain the trade-off in plain English.
Benefits
- Identifies whether a transplant is likely to be safe and worthwhile for you
- Finds and allows treatment of problems (such as heart or infection issues) before any surgery
- Explores whether a living-donor transplant, which is often quicker, is possible
- Lets you make an informed choice with a clear picture of the risks and benefits
- Prepares you properly for the waiting list or a planned transplant
- Can spare you a major operation that would not be in your interest
Risks & complications
- A long process with many appointments and tests over weeks to months
- The emotional strain of uncertainty about whether you will be listed
- Minor discomforts of testing, such as bruising from blood tests
- Finding out you need other problems treated before you can be listed
- Being told that a transplant is not currently suitable or safe for you
- Incidental findings on tests that lead to further investigation
- A potential living donor being found unsuitable after assessment
- Reactions to contrast dye or complications from specific tests (such as a stress test)
- Significant new problems uncovered that change your overall treatment plan
The assessment itself is low-risk, but it can be emotionally hard, and not everyone is found suitable. The bigger realities lie ahead: the wait for a deceased-donor kidney is often around 2–3 years and longer for some blood groups, tissue types and people with high antibody levels, and a transplant brings lifelong anti-rejection medicines with their own risks. Ask the team to be specific about what suitability depends on and what waiting is realistic for you.
Published figures to discuss
The assessment is about deciding suitability, so the meaningful figures relate to waiting and donor options rather than complications of the work-up. These vary by individual and by transplant centre. The figures below are broad UK averages from NHS Blood and Transplant and should be treated as context, not a promise for any one person.
| Figure | Reported range | How to interpret it | Source / confidence |
|---|---|---|---|
| Average wait for a deceased-donor kidney (UK) | Around 2–3 years on average | Longer for some blood groups, less common tissue types and people with high antibody levels; varies by centre. | Guide sourcesClinical context |
| Typical time to arrange a living-donor transplant | Often around 3–6 months for the donor's tests and planning | Can be done before dialysis is needed; depends on donor suitability and both people being ready. | Guide sourcesClinical context |
| Assessment finds a temporary or permanent contraindication | Common enough to plan for | Heart disease, infection, cancer, obesity, adherence concerns or vascular disease may need treatment before listing. | NHS Blood and Transplant — Kidney transplant testsnhsbt.nhs.ukSource-linked context |
| Rejection or immunosuppression complications after transplant | Long-term treatment reality | Transplant success depends on lifelong medicines and monitoring for rejection, infection, cancer and kidney function. | NHS Blood and Transplant — Kidney transplant testsnhsbt.nhs.ukSource-linked context |
These are literature figures, not a personalised prediction. Your own risks and likely benefits depend on your circumstances, your health, and how your care is carried out and followed up.
What happens afterwards
There is no physical recovery from the assessment itself. 'Afterwards' means receiving the team's decision, understanding what it means, and either being activated on the waiting list, prepared for a living-donor transplant, or supported with other treatment if a transplant is not suitable.
- A staged process with gaps between appointments
- Repeat blood tests, including regular antibody checks while on the list
- Periodic re-checks to keep your fitness assessment up to date
- Continuing dialysis (if you are on it) throughout the wait
- Needing to keep the transplant team updated with your contact details and any health changes
Aftercare
- Make sure you understand the team's decision and the reasons behind it.
- If listed, keep your contact details up to date and be reachable at all times.
- Attend regular review appointments and repeat blood tests, including antibody checks.
- Tell the team promptly about any new illness, infection, hospital stay or change in your health.
- Keep as well as possible — manage weight, blood pressure, diabetes, and stop smoking if relevant.
- Keep dialysis going as advised if you are on it, and look after any dialysis access.
- Ask about living donation and any schemes (such as paired or pooled donation) if a direct match is not possible.
- Up-to-date medicine list and allergies
- Records of vaccinations, dental health and cancer screening
- A note of anyone who may consider living donation, and how to take that forward
- Reliable, current contact details given to the transplant team
- Questions about suitability, realistic waiting time and living-donor options
- A plan for staying well and keeping fit while waiting
- Clarity on who to contact with health changes or questions
⚠ Get urgent help if…
- Signs of infection while on the waiting list, such as fever, cough or feeling generally unwell — tell your team, as infection can affect listing
- Chest pain, breathlessness or palpitations
- A significant new illness, hospital admission or operation
- Problems with your dialysis or dialysis access
- Symptoms during a stress test or after contrast dye, such as chest pain, breathlessness or a rash
- Any major change in your circumstances that affects your ability to attend or stay well
Who to contact: your clinician, clinic or test provider first (keep their number to hand). For urgent advice when you can't reach them, call NHS 111. In an emergency, call 999.
General guidance — it doesn't replace the specific advice your specialist gives you.
Results & realistic expectations
A 'good' outcome from the assessment is a clear, honest decision: either that a transplant is suitable and you can be listed or prepared for a living-donor operation, or that another path is safer for you. Being found suitable is not a guarantee of a transplant, nor of the outcome, but it opens the door to one.
The decision is usually made by the whole transplant team rather than one person, after all the tests are in. If you are listed, it means you meet national criteria — broadly, being likely to benefit and fit enough for the surgery and lifelong medicines. The assessment cannot say when a deceased-donor kidney will come, only that you are ready to receive one.
An assessment is valid for a period but not forever. While you wait, parts of it are repeated to keep it up to date — regular antibody checks, and periodic re-checks of your heart, general health and fitness — because your health and your match status can change over months or years. If something significant changes, your suitability may be reviewed. Your team will explain how often you will be reassessed.
Related tests, treatments or support
The transplant assessment is built on your existing kidney care, including kidney function blood tests and any urine tests, scans and biopsies that established your diagnosis. It runs alongside ongoing dialysis for many people and, where relevant, the separate assessment of a potential living donor. After a transplant, lifelong follow-up and anti-rejection medicines continue the story.
Follow-up & long-term care
If you are listed, you stay under regular transplant-clinic and dialysis review, with repeat tests and updated antibody checks, until a kidney becomes available or a living-donor date is set. If a transplant is not currently suitable, you remain under your kidney team, who will manage your treatment and may revisit the question if your situation changes. Make sure you know who coordinates your care and how to reach them.
- Regular antibody (sensitisation) blood tests while on the waiting list
- Periodic re-assessment of heart, lung and general fitness to keep your work-up current
- Keeping vaccinations, dental health and cancer screening up to date
- Staying as fit as possible — weight, blood pressure, diabetes control and stopping smoking
- Keeping the transplant team updated with contact details and any health changes
- Continuing dialysis and access care as advised while waiting
Repeat, follow-on and what comes next
- Assessment results are updated over time, including regular antibody checks while waiting.
- Heart, lung and general fitness checks may be repeated to keep your work-up current.
- Suitability can be reviewed if your health or circumstances change significantly.
- A potential living donor may be found unsuitable, and alternative donor routes explored.
Ask what happens if the result is unclear or needs repeating, and what is included if further tests or follow-up are needed.
What good aftercare looks like
- A clear, jointly made decision explained honestly, with reasons.
- Regular review and repeat testing, including antibody checks, while you wait.
- Support to stay fit and well, and to keep vaccinations and screening up to date.
- Proper exploration and support of any living-donor or paired-donation option.
- A named contact and clear guidance on what to report and who to call.
What affects the cost
Costs vary a great deal between people and providers, and we don't publish prices. What matters is understanding what drives the cost and making sure your quote is complete. The main things that affect it:
- In the UK this is an NHS-funded pathway through transplant centres, not a typical self-pay service
- Where any costs arise, they relate to the number and type of tests (heart, lung, blood-vessel and laboratory tests)
- Imaging and specialist investigations needed to confirm fitness for surgery
- Consultations with the transplant surgeon, physician, specialist nurse and, where relevant, a psychologist
- Separate, thorough assessment of any potential living donor
- Ongoing review and repeat testing while on the waiting list
- Confirmation that the assessment is provided through an NHS transplant centre
- Which tests and consultations the assessment includes
- How and when the suitability decision is made and communicated
- What happens if further tests or treatment are needed before listing
- How a potential living donor would be assessed
- What ongoing review and repeat testing to expect while waiting
- Who coordinates your care and how to contact them
On the NHS? Kidney transplantation and its assessment are provided through NHS transplant centres in the UK rather than as a self-pay private pathway; your kidney team can refer you for assessment.
You're entitled to your total cost in writing — including reports, follow-up and what happens if the result is inconclusive — before you decide.
Consent traps and marketing red flags
These are not small details. They are often where patients lose choice, time to reflect, or realistic expectations.
Consent traps
- Assuming that being assessed or listed guarantees a transplant or a good outcome.
- Not being clearly told the realistic waiting time for your blood group and tissue type.
- Underestimating the demands and risks of lifelong anti-rejection medicines.
- Not having living-donor and paired-donation options properly explained.
- No clear plan for what happens, or what to report, while on the waiting list.
Marketing red flags
- Any private offer implying a kidney transplant can simply be bought or fast-tracked in the UK.
- Promising a transplant or a guaranteed outcome from the assessment.
- Downplaying the wait, the surgery, or the lifelong medicines and their risks.
- Not mentioning living donation or national allocation rules.
- Suggesting you can bypass national criteria or the deceased-donor allocation system.
Choosing a specialist safely
- Check the specialist is on the GMC Specialist Register for this area.
- Make sure they work at a CQC-registered service, and look for membership of the relevant Royal College or professional body.
- You're entitled to time to consider and to have your questions answered before you agree — the specialist who looks after you should explain it, not a salesperson.
- Be wary of pressure: time-limited offers or deposits taken before you've had time to think are red flags, not bargains.
- You're entitled to your total cost in writing — including any follow-up — before you decide.
Questions to ask your medical professional
Take this to your consultation. A good specialist will welcome every one of these.
- What specifically would make me suitable or unsuitable for a transplant?
- What is a realistic waiting time for someone with my blood group and tissue type?
- Is a living-donor transplant an option for me, and how would that be explored?
- Are there paired or pooled donation schemes if I do not have a direct match?
- What problems have the tests found that need treating before I can be listed?
- What are the main risks of the transplant and the lifelong medicines for me?
- While I wait, how often will I be reassessed, and what should I report to you?
- Are you on the GMC Specialist Register for this area, and which Royal College or professional body are you a member of?
- Will you be the specialist who carries out my test, and who looks after me afterwards?
- What are the risks for someone like me, and how often do your own patients have a problem or need it repeated or redone?
- What does a realistic result look like — and what can this test not achieve?
- What are my options, including waiting, doing nothing for now, or choosing a different approach?
- Can I have written information, results and aftercare instructions in a format I can use, including any accessibility or communication support I need?
- What is the total cost in writing, including any follow-ups, and how much time do I have to decide?
Frequently asked questions
Does being assessed mean I will definitely get a transplant?
How long will I wait for a kidney?
What is a living-donor transplant?
Why do I need heart and lung tests?
Can I have this assessment done privately?
What if I am told I am not suitable?
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How we made this page
Medically reviewed by a GMC-registered consultant. Written in plain English, checked against NHS, NICE, GMC and relevant Royal College / specialist-society guidance, and kept under review. No clinic paid to appear on this page, and we publish no pricing. This is general information to help you prepare — it is not a substitute for advice from your own clinician. How we review our guides →
Source hierarchy: UK regulator and NHS/NICE guidance first, then relevant Royal College or specialist-society guidance, then peer-reviewed evidence for procedure-specific figures where available.
Sources & standards: NHS Blood and Transplant — Kidney transplant tests NHS Blood and Transplant — Going on the transplant waiting list NHS Blood and Transplant — How long is the wait for a kidney? NHS Blood and Transplant — Living donor kidney transplant NHS — Kidney transplant
Reviews reflect patients' experience of care, not clinical outcomes. For procedure volumes and outcome data see PHIN.
Last medically reviewed 2026-09-21. Spotted something wrong or out of date? Report an error in this guide.
Related guides: Kidney function blood tests (eGFR) · Kidney biopsy · Kidney ultrasound · Blood in urine (haematuria) investigation · Dialysis access (fistula) assessment