Lab test requirements · preparation, ID, referral, and timing United States · 0 communities

Mountain West · Kidney (Renal) Function Test Panel

Kidney (Renal) Function Test Panel in Colorado

Kidney (Renal) Function Test Panel can be ordered without a referral from your own doctor, and this guide covers what to expect. This panel checks how well your kidneys are filtering waste and balancing fluids. It gives a broad picture of kidney health.

Sample typeBlood and/or urine at a collection lab
ReferralIncluded — no referral from your own doctor needed

Lab requirements in Colorado

Here is what you need before ordering and completing the Kidney (Renal) Function Test Panel in CO. Review each item and confirm the details with the collection lab.

Physician's order
Included. A physician's order is required for lab testing and is provided for you by our partner's physicians — no referral from your own doctor is needed.
Fasting
Some tests require fasting or avoiding certain foods or drinks beforehand. You will be informed when you order — confirm the details with the collection lab.
Preparation
Preparation instructions can vary depending on the specific tests included, so follow the collection lab's directions. In many cases, no special preparation is needed, but you should…
Sample & visit
A blood and/or urine sample is collected; the visit usually takes about 10 minutes.
Identification
Bring the lab requisition form from your account. The collection lab may also ask for a government-issued photo ID.
Turnaround
1-3 business days
Availability
Our partner lab does not serve ND, RI, NY, NJ, MD or HI. Confirm availability for your location with the collection lab.

Before you go

  • Order your test before visiting a lab, then use the requisition form in your account.
  • Print the requisition form, or fax it to the lab directly from your account.
  • No scheduling is needed — visit the collection lab during its normal business hours.
  • A blood and/or urine sample is collected; the visit usually takes about 10 minutes.
  • Bring a government-issued photo ID in case the lab requests it.
  • Results are posted to your secure account within 1–3 business days.

Requirements are summarized from our partner lab's published policies. Preparation and availability can change — confirm current instructions with the collection lab before your visit.

What this test is

The Kidney Function Panel is a group of blood and urine tests that assess how well your kidneys are working. It typically includes measures of waste products, electrolytes, and proteins. Together, these tests help evaluate overall kidney function.

What it measures

  • Creatinine — a waste product that reflects how well the kidneys filter
  • Blood Urea Nitrogen (BUN) — another waste product that indicates kidney function
  • Estimated Glomerular Filtration Rate (eGFR) — an estimate of the kidneys' filtering capacity
  • Electrolytes (Sodium, Potassium, Chloride, Bicarbonate) — minerals that help maintain fluid and acid-base balance
  • Calcium and Phosphorus — minerals that are regulated by the kidneys
  • Albumin — a protein that can indicate kidney damage if present in urine

What the test involves

The panel usually requires a blood sample drawn from a vein in your arm. You may also be asked to provide a urine sample, depending on the specific tests included.

Why it is often ordered

A clinician may order this panel to screen for kidney problems, especially if you have conditions like diabetes or high blood pressure. It can also help monitor kidney function if you are taking medications that affect the kidneys or have known kidney disease.

Preparation

Preparation instructions can vary depending on the specific tests included, so follow the collection lab's directions. In many cases, no special preparation is needed, but you should confirm with the lab.

How results are reported

Results are reported as numeric values for each marker, often with a reference range provided by the testing laboratory. Reference ranges can differ between labs, so your results should be interpreted in the context of the lab that performed the test.

Before you go

  • Whether fasting is required for your specific panel
  • If a urine sample is needed in addition to a blood draw
  • Any medications or supplements that might affect the test results

Cities

Kidney (Renal) Function Test Panel in Colorado communities

Choose your city for local context and to order this test.

Denver2,650,725Kidney (Renal) Function Test PanelColorado Springs628,808Kidney (Renal) Function Test PanelAurora383,496Kidney (Renal) Function Test PanelFort Collins301,596Kidney (Renal) Function Test PanelLakewood155,608Kidney (Renal) Function Test PanelPueblo142,727Kidney (Renal) Function Test PanelThornton140,538Kidney (Renal) Function Test PanelGreeley135,270Kidney (Renal) Function Test PanelGrand Junction134,074Kidney (Renal) Function Test PanelArvada122,903Kidney (Renal) Function Test PanelBoulder120,818Kidney (Renal) Function Test PanelWestminster115,535Kidney (Renal) Function Test PanelCentennial107,972Kidney (Renal) Function Test PanelLongmont104,035Kidney (Renal) Function Test PanelHighlands Ranch103,238Kidney (Renal) Function Test PanelLafayette99,475Kidney (Renal) Function Test PanelLoveland75,938Kidney (Renal) Function Test PanelBroomfield72,697Kidney (Renal) Function Test PanelCastle Rock71,037Kidney (Renal) Function Test PanelCommerce City61,516Kidney (Renal) Function Test PanelParker57,311Kidney (Renal) Function Test PanelLittleton45,465Kidney (Renal) Function Test PanelSecurity-Widefield40,158Kidney (Renal) Function Test PanelBrighton39,895Kidney (Renal) Function Test PanelNorthglenn37,899Kidney (Renal) Function Test PanelDakota Ridge34,361Kidney (Renal) Function Test PanelKen Caryl33,889Kidney (Renal) Function Test PanelEnglewood33,500Kidney (Renal) Function Test PanelPueblo West32,991Kidney (Renal) Function Test PanelWheat Ridge32,340Kidney (Renal) Function Test PanelWindsor31,972Kidney (Renal) Function Test PanelFountain29,495Kidney (Renal) Function Test PanelErie29,367Kidney (Renal) Function Test PanelColumbine25,924Kidney (Renal) Function Test PanelEvans21,727Kidney (Renal) Function Test PanelFour Square Mile21,723Kidney (Renal) Function Test PanelLouisville21,091Kidney (Renal) Function Test PanelClifton20,122Kidney (Renal) Function Test PanelMontrose20,098Kidney (Renal) Function Test PanelSherrelwood20,069Kidney (Renal) Function Test PanelGolden20,041Kidney (Renal) Function Test PanelDurango18,953Kidney (Renal) Function Test PanelCimarron Hills18,619Kidney (Renal) Function Test PanelCañon City17,157Kidney (Renal) Function Test PanelFort Carson16,743Kidney (Renal) Function Test PanelJohnstown16,596Kidney (Renal) Function Test PanelWelby16,260Kidney (Renal) Function Test PanelFirestone15,949Kidney (Renal) Function Test PanelGreenwood Village15,548Kidney (Renal) Function Test PanelBlack Forest14,375Kidney (Renal) Function Test PanelFrederick14,127Kidney (Renal) Function Test PanelFederal Heights14,111Kidney (Renal) Function Test PanelSterling13,976Kidney (Renal) Function Test PanelLone Tree13,701Kidney (Renal) Function Test PanelFruita13,296Kidney (Renal) Function Test PanelSuperior13,283Kidney (Renal) Function Test PanelSteamboat Springs13,193Kidney (Renal) Function Test PanelFort Morgan11,483Kidney (Renal) Function Test PanelCherry Creek11,389Kidney (Renal) Function Test PanelCastle Pines11,296Kidney (Renal) Function Test Panel