Renal Panel

Renal Panel focuses on kidney-specific markers (BUN, creatinine, eGFR, electrolytes, glucose, calcium) — 9-10 tests. The CMP includes everything in a Renal Panel PLUS 4-5 liver tests (ALT, AST, alkaline phosphatase, bilirubin, total protein, albumin) for 14 tests total. CMP is usually a better value unless your insurance specifically requires the Renal-only code.

Above 90 mL/min/1.73m² is normal. 60-89 is mildly decreased (often age-related). 30-59 is moderate CKD (stages 3a/3b). 15-29 is severe (stage 4). Below 15 is kidney failure (stage 5, often requiring dialysis). Trends over time matter — a stable eGFR of 75 is fine; a falling eGFR of 75 needs investigation.

Most common: dehydration (BUN rises faster than creatinine). Less common: GI bleeding, high-protein diet, kidney injury, or heart failure. The BUN/creatinine ratio helps distinguish: >20 suggests dehydration or GI bleeding; <10 suggests overhydration or liver disease.

On TestWell, the Renal Panel is $23.99. Quest Direct lists the same panel at $40, walk-in hospital labs typically bill $100-130 without insurance. The CMP at $22.99 includes everything in this panel plus liver tests — usually a better value.

The CPT code for a Renal Function Panel is 80069. The expanded CMP is billed as 80053.

Yes — 8-12 hours of fasting (water only) gives the most accurate glucose reading. The other components (BUN, creatinine, electrolytes) are less affected by recent meals.

Yes if you have diabetes or hypertension. Microalbumin catches early diabetic nephropathy years before eGFR drops. Ask your provider for a urine albumin-to-creatinine ratio (uACR) annually if you have diabetes, or every 1-2 years with hypertension.

Renal 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.

Dehydration, ibuprofen and other NSAIDs, keto and high-protein diets and creatine supplements can change a Renal Panel result without anything being wrong. Dehydration can raise BUN, Sodium and Albumin and can lower eGFR — hydrate normally; water is allowed during a fast. Ibuprofen and other NSAIDs can raise BUN and Potassium and can lower eGFR and Sodium — hydrate; skip NSAIDs for a few days before a kidney-function baseline if the prescriber agrees. Keto and high-protein diets can raise BUN and Creatinine and can lower Sodium — A high BUN with normal creatinine and eGFR reflects protein intake, not kidney damage. Creatine supplements can raise Creatinine and can falsely lower eGFR — tell the clinician; pause 1–2 weeks before a creatinine/eGFR draw, or ask for cystatin C. 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 Renal Panel online from TestWell for $23.99 (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.

The Renal Panel is Quest Diagnostics test code 10314 ("Renal Function Panel"), Labcorp test number 322777 ("Renal Panel (10)") (CPT 80069). TestWell orders it under those codes for $23.99 at Quest or Labcorp — no doctor's visit or insurance required, results in 2–4 business days. Codes verified against the labs' catalogs in 2026.