Kidney & Liver Tests
This page explains the kidney & liver tests, what it measures, and how to arrange it. Kidney & Liver Tests is a group of blood tests that checks how well your kidneys and liver are working. It is often ordered during a routine checkup, before surgery, or when symptoms or medicines suggest these organs need a closer look.
- Sample type
- blood
- Category
- Liver
- Turnaround
- 1-3 business days
- Price
- $145
- Referral
- Not required
Kidney & Liver Tests is a group of blood tests that checks how well your kidneys and liver are working. It is often ordered during a routine checkup, before surgery, or when symptoms or medicines suggest these organs need a closer look.
What it measures
- Creatinine — A waste product filtered by the kidneys; higher levels can mean reduced kidney function.
- Blood urea nitrogen (BUN) — Another kidney-filtered waste; read together with creatinine.
- Estimated glomerular filtration rate (eGFR) — A calculated estimate of how much blood your kidneys filter each minute.
- ALT and AST — Liver enzymes; leaking into blood can signal liver cell irritation.
- ALP — A liver and bile-duct enzyme; changes can relate to bile flow.
- Bilirubin — A yellow pigment processed by the liver; buildup can cause jaundice.
Who it is for
A primary care clinician, urgent care provider, or specialist may order these tests. They are common before starting medicines that affect the liver or kidneys.
Preparation
Fasting is often not required, but some labs ask for 8-12 hours without food if cholesterol or glucose is drawn at the same time. Tell the lab about all medicines and supplements you take.
Results and what they mean
Results are reported as numbers with a reference range, and your clinician interprets them alongside your history, symptoms, and other tests. One abnormal value does not by itself mean disease. This is general information, not medical advice; discuss your results with a qualified clinician.
How to order this test
- Choose the test and place a confidential order online.
- Select a certified collection site and pick a time that suits you.
- Have your specimen collected — most draws take only a few minutes.
- Review results in a secure portal, typically within 1–3 days.
Preparation, hours, and pricing vary by site; confirm details directly with the lab before your visit.
Availability by state
Direct-access online ordering for the kidney & liver tests is available in most states. It is currently unavailable in 6 states:
Everywhere else you can order confidentially and collect your sample at a certified site. Browse by state →
Frequently asked questions
Do I need to fast?
Only if your clinician or lab says so. Many kidney and liver panels can be drawn without fasting.
How soon will I get results?
Typical turnaround is 1-3 business days, though it can vary by lab.
Can medicines affect the results?
Yes. Some prescription drugs, over-the-counter medicines, and supplements can change liver or kidney values, so share a full list with your clinician.
What if one value is outside the range?
A single out-of-range result is common and may be temporary. Your clinician will decide whether repeat testing or further evaluation is needed.