Kidney Health & Renal Function Test
Assess your fluid filtration efficiency. Monitor key renal markers, including eGFR and creatinine to track hydration and toxic clearance. Get immediate digital dashboard updates with plain-English AI metrics.
4 biomarkers across 1 health systems
Tap any group to see exactly what we measure and why it matters.
-
Sodium (Na)
A crucial mineral that acts as your body's fluid manager. It keeps the water levels inside and outside your cells perfectly balanced, whilst also playing a vital role in maintaining healthy blood pressure and ensuring your nerves and muscles communicate effectively.
-
Urea
Another waste product cleared by the kidneys, this one from protein breakdown. It's affected by hydration, protein intake and kidney function.
-
Creatinine
A waste product your muscles produce that's filtered out by your kidneys. Levels can shift with muscle mass, hydration status and protein intake, so very muscular people often sit slightly higher than the population average.
-
eGFR (estimated Glomerular Filtration Rate)
An estimate of how efficiently your kidneys filter blood, calculated from your creatinine. Higher is generally better. It's the single most-used indicator of overall kidney functio n.
From order to answers in four steps
Order online
Choose at-home or clinic. Free tracked delivery either way.
Collect your sample
Simple finger-prick or a quick visit to one of our UK partner clinics.
Lab analyses it
Posted back free to our UKAS-accredited partner laboratories.
Plain-English results
Within 48 hours in your secure portal, with your lifestyle action plan.
Includes AI summary & action planQuick prep for an accurate result
Numbers on the left. Answers on the right.
Every marker shows its result and reference range, colour-coded by status. Each group gets a plain-English explanation and lifestyle context.
in Customizer
What people say
Frequently asked
Capillary (finger-prick) samples are highly reliable when collected correctly. Our partner laboratories are UKAS-accredited and process samples to the same clinical standards used by the NHS and private clinics. For panels needing a larger sample, a clinic draw is recommended at the cart stage.
Morning, before 10am, after an 8-hour fast (water is fine). Avoid heavy exercise for 24 hours and pause biotin supplements for 2 days. Post the sample back the same day, Monday to Thursday.
Vitall Check provides AI-powered plain-English summaries and a personalised lifestyle action plan, not clinical diagnoses. If results sit outside the reference range, we provide a ready-to-use guide for your next GP appointment.
Many medications and conditions can influence biomarker results. We recommend discussing your medical history with your GP, who will interpret your results in the full clinical context.
When your kit arrives, visit vitallcheck.co.uk/activate and enter your order number.
Delivery: Free tracked delivery on every kit, both ways. Order before 1pm Monday to Friday for next-day delivery.
Posting your sample: Post Monday to Thursday so your sample reaches the lab before the weekend.
Sample failures: If the lab can't process your sample, your replacement kit is free. Additional replacements are charged at £40.
