Comprehensive kidney function assessment
The short answer
Kidney Health Panel bundles 4 tests — Renal Panel, Kidney Function Test (Cystatin C) and Urinalysis, Complete plus 1 more — for $64.99 plus one $6 lab processing fee (about $16.25 per test). Fast 8–12 hours before the draw; results post in 2–4 business days. Physician-authorized with no doctor's visit or insurance needed; one draw at Quest or Labcorp.
Other Labs
Starting at $170
+ lab fees
TestWell
$64.99
+ $6 lab processing fee
The Kidney Health Panel goes beyond basic kidney markers to provide a thorough assessment of renal function. The Renal Panel and CMP evaluate electrolytes, BUN, and creatinine. Cystatin C provides a more accurate GFR estimate than creatinine alone — especially valuable for people with high or low muscle mass. A complete urinalysis screens for protein, blood, and other abnormalities that indicate kidney damage. This panel is ideal for anyone with diabetes, hypertension, or a family history of kidney disease.
Comprehensive kidney evaluation: Renal Panel (BUN, creatinine, eGFR, electrolytes) + Microalbumin (early kidney damage) + Cystatin C (more accurate eGFR than creatinine alone). Catches kidney disease years before standard labs.
Anyone with diabetes, hypertension, family history of kidney disease, on nephrotoxic medications (NSAIDs long-term, lithium, ACE/ARBs), recurrent kidney stones, or age 60+ for baseline.
Sample Type
Blood draw + Urine sample
Fasting
Required
Results In
2–4 business days
Biomarkers
36 across 4 tests
4 individual tests · 36 biomarkers measured — each test linked so you can learn more.
Fasting for 10–12 hours recommended. Collect a midstream urine sample. Water is okay.
What can throw off this result
Physician-reviewed “Before your test” pages — what each factor does, for how long, and what to do about it.
A Kidney Health Panel costs $64.99 at TestWell — $70.99 all-in when ordered alone, because the $6 lab processing fee is charged once per order, with no draw fee or physician fee added. Ordered directly from the labs' own consumer sites, the closest equivalent lists at $109.00 at Labcorp OnDemand (list prices checked Sep 12, 2026; see the notes on how the products differ). With insurance, what you pay depends on your deductible and your plan's negotiated rate; TestWell's price is fixed before the draw and is HSA/FSA-eligible.
| Where you order | Price | One test, all-in | Notes |
|---|---|---|---|
| TestWell (drawn at Quest or Labcorp) | $64.99 | $70.99 | Includes the one $6 lab processing fee, charged once per order |
| Labcorp OnDemand (Labcorp's own site) | $109.00 | $109.00 | Marker lists differ; both are kidney-function panels · list price checked Sep 12, 2026 |
35% less than the lower lab-direct list price, for the same draw at the same lab. Competitor prices are read from the linked public pages and re-checked regularly; the labs' sites may add taxes or change prices without notice.
Compare more: Quest Diagnostics price list · Labcorp price list · Quest vs Labcorp · Lab test price checker
Renal Panel (BUN, creatinine, eGFR, electrolytes — 9 tests), Cystatin C (more sensitive eGFR marker), and urine microalbumin (the earliest marker of diabetic / hypertensive kidney damage). About 12 individual biomarkers focused entirely on kidney function.
Creatinine-based eGFR overestimates kidney function in low-muscle-mass patients (elderly, women) and underestimates in high-muscle-mass patients (bodybuilders, athletes). Cystatin C is unaffected by muscle mass — it's a more accurate eGFR marker in both extremes. Combined eGFR (CKD-EPI Cr-CysC equation) is the most accurate.
Microalbuminuria (small amounts of protein in urine) is the earliest detectable sign of diabetic or hypertensive kidney damage — appears years before eGFR drops. Catching it early lets you start ACE inhibitors or SGLT2 inhibitors that can slow or reverse kidney damage.
Renal Panel or CMP catches advanced kidney disease (eGFR already low). Kidney Health Panel adds Cystatin C (more sensitive eGFR) and microalbumin (earliest damage marker) — designed to catch kidney problems at the earliest, most-treatable stage.
On TestWell, the Kidney Health Panel is $64.99. Ordering the same tests separately would be about $100. Quest Direct lists comparable bundles at $170, walk-in hospital labs typically bill $350-500 for the same biomarkers without insurance.
Yes — 8-12 hours of fasting (water only) for accurate creatinine, Cystatin C, and electrolyte readings.
Annually for adults with diabetes or hypertension. Every 3-6 months if CKD is already established or you're titrating ACE/ARB therapy. Every 2-3 years for healthy adults under 60 with no risk factors.
Kidney Health Panel results are typically ready in 2–4 business days after your draw at Quest or Labcorp. TestWell emails you the moment they post, and your results dashboard shows each marker against its reference range with a plain-English explanation.
Ibuprofen and other NSAIDs, dehydration and keto and high-protein diets can change a Kidney Health Panel result without anything being wrong. Ibuprofen and other NSAIDs can raise BUN, Potassium and ALT and can lower eGFR and Sodium — hydrate; skip NSAIDs for a few days before a kidney-function baseline if the prescriber agrees. Dehydration can raise BUN, Sodium and Albumin and can lower eGFR — hydrate normally; water is allowed during a fast. Keto and high-protein diets can raise BUN and Creatinine and can lower Sodium and Glucose — A high BUN with normal creatinine and eGFR reflects protein intake, not kidney damage. Each factor is covered on our physician-reviewed "Before your test" pages; when one applies, the fix is usually to remove it and retest.
Order the Kidney Health Panel online from TestWell for $64.99 (plus a $6 per-order lab processing fee) — no doctor's visit, referral or insurance needed. A licensed physician authorizes the order, then you walk into any Quest or Labcorp patient service center near you for the draw (the lab locator on our site lists the closest ones by ZIP code), and results arrive in 2–4 business days.
Medically reviewed by Youmna DiStefano, MD · Last reviewed September 2026
Starting at $170 at other labs
TestWell Price
$64.99
+ $6 lab processing fee at checkout
No insurance needed · HIPAA compliant
Individual tests that complement this panel
Kidney Health Panel
$64.99