A simple check on how your kidneys are doing
A urea, electrolytes and creatinine panel that gives a clear read on kidney function and your salt balance, from one quick blood draw. No fasting needed.
No doctor's referral, no fasting. Walk in or book a slot.
How would you like to get tested?
Book a time
Reserve a slot at your nearest branch online, then walk straight in. Best if you want a guaranteed time.
Book nowWalk in
No appointment needed. Come through any branch, Monday to Friday, 08:30 to 16:00.
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Not sure which tests you need? Message us on WhatsApp and we will help you decide.
WhatsApp usWhat does the panel measure?
A urea, electrolytes and creatinine panel that reads kidney function and your salt balance in one go. From one blood draw.
Kidney function and electrolytes
U&E and Creatinine. Urea, Sodium, Potassium, Chloride, Bicarbonate and Creatinine: how well your kidneys are filtering and how your salt balance sits.
Your results come with an ODx report
With this panel you also receive an ODx Functional Health Report, which reads your results against optimal ranges, not just disease ranges, so you can spot imbalances early and track them over time.
See ODx reports and an example →Three steps, no GP needed
Book a slot or walk in
Reserve a time at your branch, or walk straight in. No doctor's referral, and no fasting needed.
Quick blood draw
A nurse takes a small blood sample, just a few minutes.
Results in 2 to 5 days
A colour-coded report by marker, with a free certificate you can share with your doctor.
Who is this for?
Most useful if you want a quick check on kidney function, on its own or alongside other tests.
On long-term medication
You want to keep an eye on your kidneys while on regular medication.
High blood pressure
You manage high blood pressure and want to check kidney function.
A family history
Kidney problems run in your family and you want a baseline.
Staying hydrated and well
You want to check your salt balance and filtering.
A focused follow-up
Your doctor wants to repeat kidney markers.
General peace of mind
You simply want to check your kidneys are in range.
What people say
Friendly and competent staff. Both at reception and the nurse. A much simpler process than going through doctors. Thank you ladies.
The staff at reception as well as the nurses are friendly and professional. I've also always received results timeously. I would give 10 stars if I could.
Highly highly highly recommend. The experience was painless and the practice was inviting and well kept. The report was extremely detailed and informative and I would have this as top of my list for preventive care.
Amazing experience, highly professional staff. Very reasonable prices. Highly recommend.
I cannot recommend Juliette and her team enough, friendly and kind from the get go. Bloods were drawn with minimal discomfort and the labs came back quickly.
Excellent experience at Epicentre. The staff were professional, kind, and took time to explain everything clearly. The facility was clean, booking was easy, and I did not feel rushed.
What this does not do
This is a focused screen of kidney function. It is a starting point for a conversation with your doctor, not a diagnosis on its own.
- It does not diagnose any condition on its own; unusual results are followed up with your doctor.
- A urine test and other markers may be needed for a fuller picture; your doctor will advise.
- Results can be affected by hydration and recent food, so they are read in context.
- Results are meant to inform a discussion with a registered practitioner.
Quick answers
Three walk-in labs
Durban
Mon to Fri, 08:30 to 16:00
Johannesburg
Mon to Fri, 08:30 to 16:00
Round out the picture
Medically reviewed by Dr Samantha Naidoo, MB ChB, FCP (SA), Medical Director at Epicentre Walk-In Labs. Reviewed 2 June 2026. Epicentre Aids Risk Management (Pty) Ltd provides diagnostic laboratory testing and does not provide diagnoses, treatment or prescriptions to the public; results are intended to inform discussions with a registered healthcare practitioner.
A simple check on your kidneys
No doctor's referral and no fasting needed, with results in 2 to 5 working days. Book a slot, walk in, or message us if you are not sure where to start.