Kidney Function Blood Test London

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Kidney Function Blood Test

The two kidneys act as a filter for the blood. They retain the products that the body needs and filter out waste products into the bladder as urine. Blood tests that measure how well the kidneys are working look at a number of elements - most commonly the waste products urea and creatinine as well as the filtration rate and the important salts, potassium and sodium.

A kidney function test is an important component of our patient health screens. Your doctor may recommend a health screen to investigate potential reasons as to why you are not feeling yourself. Do not worry about determining for yourself which if any blood test you need. This is something that your doctor will be able to determine and explain during your consultation.

All our blood tests are available same day with some of the fastest results in London. One of our doctors will take the time to explain to you what your test results mean and put in place any approprate next steps based on those results.

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How it Works

1. BOOK AN APPOINTMENT

Choose from any of our 7 London blood test clinics, open 7 days

2. MEET WITH A DOCTOR

They can advise on suitable tests and take a blood or urine sample

3. RECEIVE YOUR RESULTS

You will be emailed your results, analysis and recommendations

4. FOLLOW UP (OPTIONAL)

Follow up consultation only £25 for further treatment or advice

Kidney Function & Related Tests

Test Cost Results
DocTap Health Screen £83 1 working day

HAEMATOLOGY

FBC with 5-part Diff

BIOCHEMISTRY

Urea and Electrolytes
Sodium, Potassium, Chloride, Bicarbonate, Urea, Creatinine, eGFR

Liver Function Tests
Bilirubin, Alk Phos, AST, ALT, Gamma GT, Total Protein, Albumin, Globulin

Lipid Profile
Triglycerides, Cholesterol, HDL Cholesterol, LDL Cholesterol, non-HDL Cholesterol

Glycosylated Haemoglobin

DocTap Unwell Patient Screen £134 1 working day

HAEMATOLOGY

FBC with 5-part Diff

BIOCHEMISTRY

Urea and Electrolytes
Sodium, Potassium, Chloride, Bicarbonate, Urea, Creatinine, eGFR

Liver Function Tests
Bilirubin, Alk Phos, AST, ALT, Gamma GT, Total Protein, Albumin, Globulin

Glycosylated Haemoglobin

ENDOCRINOLOGY

Thyroid profile
Thyroid Stimulating Hormone, Free Thyroxine (T4)

DocTap Over 40s Male Screen £107 1 working day

HAEMATOLOGY

FBC with 5-part Diff

BIOCHEMISTRY

Urea and Electrolytes
Sodium, Potassium, Chloride, Bicarbonate, Urea, Creatinine, eGFR

Liver Function Tests
Bilirubin, Alk Phos, AST, ALT, Gamma GT, Total Protein, Albumin, Globulin

Lipid Profile
Triglycerides, Cholesterol, HDL Cholesterol, LDL Cholesterol, non-HDL Cholesterol

Glycosylated Haemoglobin

TUMOUR MARKERS

Prostate Specific Antigen (Total)

Urea and Electrolytes £47 Next working day

Sodium
Potassium
Chloride
Bicarbonate
Urea
Creatinine

Creatinine £33 Next working day
Creatinine Clearance £52 Next working day
DL1L Biochemistry Profile plus HDL Cholesterol, LDL Cholesterol and Non-HDL Cholesterol £52 Next working day

As DL1 plus HDL Cholesterol, LDL Cholesterol and Non-HDL Cholesterol

DL2L Biochemistry (24 Parameters) & Haematology Profile plus HDL Cholesterol, LDL Cholesterol and Non-HDL Cholesterol £70 Next working day

As DL2 plus plus HDL Cholesterol, LDL Cholesterol and Non-HDL Cholesterol

DL6L General Well Person Profile plus HDL Cholesterol, LDL Cholesterol and Non-HDL Cholesterol £126 Next working day

As DL6 plus plus HDL Cholesterol, LDL Cholesterol and Non-HDL Cholesterol

Electrolytes £37 Next working day
Renal Calculi Screen (Metabolic) £155 5 working days
Sodium £31 Next working day
Urea £35 Next working day
Urea (Urine) £35 Next working day
Well Man Profile plus HDL Cholesterol, LDL Cholesterol and Non-HDL Cholesterol £160 Next working day

As DL7 plus plus HDL Cholesterol, LDL Cholesterol and Non-HDL Cholesterol

Well Woman Profile plus HDL Cholesterol, LDL Cholesterol and Non-HDL Cholesterol £160 Next working day

As DL8 plus plus HDL Cholesterol, LDL Cholesterol and Non-HDL Cholesterol

This is only a small sample of the many blood tests which DocTap provide. Our expert doctors can advise you during your consultation on the most appropriate tests for your condition. View all blood tests.

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Why Choose DocTap?

DocTap seek to provide the most convenient, fastest, effective and best value private blood testing service in London. With 11 blood test centres across London and same day appointments available 7 days a week, it has never been easier to book a kidney function test. We are proud to partner with The Doctors Laboratory (TDL) which has a worldwide reputation for excellence.

Unlike many blood test clinics, you will see a UK accredited GP who will be able to offer their expert option on what test is most appropriate for you. Your results will also be accompanied by a written analysis of what they mean and what your doctor advises you to do next. Should additional treatment be required, or if you simply wish to discuss the results in more detail, then you can book a 15 minute follow up consultation for only £25. This can either be at any DocTap clinic or over the phone. When booking your follow up consultation you can request to see you original doctor if you wish (subject to their availability).

Should you require a full consulation before deciding to have a kidney function test then there may be insufficient time to also take a blood sample in the appointment. In that case you can choose to either go to our walk in laboratory by Oxford Street (£15 phlebotomy fee applies) or to make a second appointment for the doctor to take the bloods.

Kidney Function Test london
Advice from expert UK doctors
11 London clinics, open 7 days
Blood tests & screens from £14
Fast results, many same day
Includes doctor's report and plan
Follow up with GP (£25, optional)
World class partner lab (TDL)
No sales incentives for doctors

What does a Kidney Function Test measure?

As well as filtration, the kidneys have a vital role in retaining salt and water. This in turn affects blood pressure. 

Blood tests that measure how well the kidneys are working look at a number of elements:

  • Urea - this is a waste product from the breakdown of proteins in the body. If the urea level in the blood is raised then this can represent a problem with the kidneys, dehydration or bleeding into the gut.
  • Creatinine- this is a waste product from muscles which enters the blood and is filtered by the kidneys into the urine. If kidneys gradually deteriorate and fail then the creatinine level slowly rises. This is called 'chronic kidney disease' and it can be caused by diabetes, kidney blockage, kidney diseases and it commonly occurs, to a mild degree, in the elderly. If there is an acute kidney problem (called 'acute kidney injury') then the level rapidly rises. This can be caused by severe dehydration, infection or toxic medications such as anti-inflammatories. 
  • Glomerular filtration rate (GFR, eGFR) - this gives a guide to overall kidney function - it is a calculation based on the creatinine levels, age, sex and race.
  • Electrolytes - these are the dissolved salts in the blood, sodium and potassium. These can be disrupted by problems with the kidneys, medications, dehydration or fluid overload caused by heart or liver failure. 

What other kidney tests might I need?

These blood tests will not tell the Doctor exactly what the problem is - only that there is a problem. Further tests such as urine testing, ultrasound scans, special kidney function scans, and kidney biopsies may be necessary to diagnose the cause.

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Book a Kidney Function Test Today

Our doctors are available now and can perform diagnosis and blood tests for over 1000 conditions. To see a GP regarding a Kidney Function Test or for any other reason book an appointment now and start feeling better right away.

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