How To Order Your Labs

1. Order Labs
Order online or over the phone:  1-877-511-LABS.

No doctor or consultation visit is needed. We include the required doctors order with all our testing. 

You will not incur any additional charges at the lab. Our prices are all inclusive.

2. Find Lab Near You

Find a LabCorp or Quest Diagnostics location near you on our Lab Locator. After ordering your lab testing, you will receive an email with your lab requisition.  Bring this requisition form (printed or on phone) to the laboratory.

No appointment is needed, but making one can minimize the wait time. 

3. Lab Results Ready

We’ll email you when your results are ready. You can access the test results logging into our portal with your secure account.

Most results take 1-2 days, but some take longer. See the test description for an estimate on how long your results might take.

Certain result values may prompt a phone call from our ordering provider to ensure the patient is aware of their result.

Check status of your results on the "Where are my results" page.

Kidney Testing

Why Order Kidney Function Tests Online?

The kidneys play an important role, your kidneys filter blood and getting rid of waste. Healthy kidneys also help balance electrolyte levels, controlling blood pressure, and signal for production of red blood cells. Deterioration of of kidney health can happen rapidly, but more often occurs over a period of years. Early detection through kidney function testing is important because kidney problems often have no symptoms until your kidneys are seriously damaged.

At Health Testing Centers we make kidney function testing easy by allowing you to avoid the hassle of visiting your doctor. We provide lab tests that measure renal function, including Doctor's oversight, using the same labs that your doctor utilizes. Test results show your levels compared to a normal range. Test results are securely delivered to you, saving you time and money.

 Fast, accurate, clear lab results without doctor visit
 100% satisfaction guarantee
 Private and confidential

Featured Kidney Packages

Featured Tests and Packages
Expanded Kidney Function Panel

Measures the levels of glucose (blood sugar), electrolytes, minerals, protein and waste products to evaluate kidney function

Comprehensive Kidney Function Panel

Measures the levels of glucose (blood sugar), electrolytes, minerals, protein and waste products to evaluate kidney function. This test will also include a Uric Acid test and PTH,Intact test.

Kidney Lab Tests (A-Z)

Lab Tests (A-Z)

This test measures the level of Albumin in the blood.


This test measures the level of Aldosterone in the blood.

Antidiuretic Hormone (ADH) Profile

This test measures both ADH and osmolality in the blood. THIS TEST IS AVAILABLE ONLY AT LABCORP.

Basic Metabolic Panel (BMP)

Measures levels of 8 individual components to assess overall health

BUN (Blood Urea Nitrogen)

This test measures the level of BUN (blood urea nitrogen) in the blood.

BUN/Creatinine Ratio

This test measures BUN (Blood Urea Nitrogen) and creatinine levels to evaluate kidney function.

Calcium, 24 Hour Urine

This test measures Calcium levels in a 24-hour urine sample.

Calcium, Ionized

The Calcium, Ionized test is used to measure the free or unbound amount of calcium in the blood.

Comprehensive Metabolic Panel 14 (CMP 14)

CMP blood test measures levels of 14 individual components to assess overall health.


Measures the amount of creatinine to evaluate kidney function

Creatinine Clearance

This test measures Creatinine levels in both the blood and a 24 hour urine sample to evaluate kidney function.

Creatinine, 24 Hour Urine

This test measures the amount of creatinine in a 24 hour urine sample to evaluate kidney function.

Cystatin C

This test is used to measure the level of Cystatin C in the blood to evaluate kidney function.

Expanded Kidney Function Panel

Measures the levels of glucose (blood sugar), electrolytes, minerals, protein and waste products to evaluate kidney function

Parathyroid Hormone (PTH) and Calcium

Measures the amount of parathyroid hormone and calcium. PTH helps regulate calcium, vitamin D, and phosphorus levels in the blood and bones.

Parathyroid Hormone (PTH), Intact

Measures the amount of intact parathyroid hormone to evaluate parathyroid function and abnormal calcium levels.


This test measures the level of Phosphorus in the blood.


This test measures the amount of potassium in the blood to evaluate this important electrolyte level.

Potassium, 24 Hour Urine

This test measures the amount of potassium in a 24 hour urine sample to evaluate this important electrolyte level.

Protein and Creatinine, Random Urine

The Protein and Creatinine urine test will measure the levels of protein, creatinine and protein:creatinine ratio in the urine.

Protein, 24-Hour Urine

This test measures Protein levels in a 24-hour urine sample.

Uric Acid

Measures the level of uric acid to help manage or detect gout.

Uric Acid, 24 Hour Urine

This test measures Uric Acid levels in a 24-hour urine sample.

Urinalysis (UA)

Examines a urine sample for the presence of proteins and other signs of infection

Kidney Health FAQ

Reviewed By: Dr. Kurt Kloss, MD
Last Reviewed Date: Dec 13, 2021
Last Modified Date: Dec 13, 2021
Published Date: Dec 17, 2019

Who should be tested for kidney function?

According to the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) risk factors for kidney disease include:

  • A family history of kidney disease
  • Diabetes
  • High blood pressure
  • Heart disease

What is kidney disease?

Kidney disease is any condition that causes a decline in kidney function. Kidney damage is usually irreversible but you can treat the and keep it from getting worse. The disease is classified into five stages, from mild to advanced. Those in advanced stages of kidney failure require dialysis or a kidney transplant to survive. Kidney disease is also classified as acute or chronic. Acute kidney disease progresses quickly, over days or hours. Chronic kidney disease (CKD) progresses more slowly, affecting kidney tissue over weeks or months, and is often long-lasting.

What are the causes of kidney disease

The four main causes of kidney disease are:

Genetic factors – mutations in genes can result in kidney disease including the most common - polycystic disorder (PKD).

Environmental factors – includes improper diet, lack of exercise and obesity. Toxic exposure to chemicals and certain medications can also affect kidney function.

Diabetes – a disease that can affect numerous organs, including the kidneys, by increasing its workload and causing inflammatory changes; a leading cause of kidney failure.

Hypertension – also known as high blood pressure, it is the second most common cause of kidney disease in the U.S. especially among African Americans. Kidneys are designed to handle normal blood pressure levels, so uncontrolled high blood pressure causes inflammatory changes and extra stress on the kidneys.

What are the symptoms of kidney disease?

Your body usually sends you warning signs when the kidneys are in distress. However, some kidney disease patients have reported little to no clear symptoms until their kidney dysfunction is advanced. If you experience any of the following warning signs it is important to get tested and seek medical advice:

Changes in color or consistency of urine – including reddish or dark that indicates the presence of blood (hematuria); bubbly or frothy that can mean protein leakage (proteinuria). Bloody urine, in particular, should never be ignored.

Difficulty with urination – for men, it can be maintaining a steady flow stream and frequent urination at night (nocturia) which can point to either prostate trouble or kidney disease; for women it can be high frequency and a burning sensation, indicating urinary tract infection (UTI) or possibly an early stage of kidney infection.

Edema – swelling in the legs, feet, ankles, hands, around the eyes and in the abdomen, caused by excess fluid when the kidneys are unable to properly eliminate water and salt.

Uremic symptoms – a level of severity in kidney dysfunction that can cause nausea, vomiting, extreme fatigue, no appetite, food tasting “metallic,” itching, among other symptoms.

How is kidney failure diagnosed?

Some healthcare providers advocate that, even if no symptoms are present, you should have an annual physical with the proper blood work to measure kidney function. This is the primary means of identifying early kidney disease. In fact, the following lab tests can reveal a great deal about how your kidneys are working:

Estimated Glomerular Filtration Rate (eGFR) – shows how well your kidneys are doing their filtering job. The small filters within the kidneys are called glomeruli.

Creatinine Level and Creatinine Ratio – serum creatinine blood tests of the material produced by muscles and filtered by the kidneys; the level of creatinine is a good indicator of kidney function along with GFR rates.

Creatinine Clearance Test - a 24-hour urine sample measures how much creatinine your body expels over this period.

Blood Urea Nitrogen (BUN) – high BUN levels can mean severe dehydration; when used in combination with other tests can help determine overall kidney function.

In addition to blood samples, a urinalysis is generally administered. A simple but effective urine test, the urine sample can identify presence of blood, bacteria, urine protein and glucose (a sign of diabetes). Even when the urine color and consistency appear normal to the naked eye, microscopic changes are not visible, so a urine test can detect early signs of kidney disease.

If further studies are warranted, imaging tests such as a CT scan or MRI may be ordered. Imaging tests can detect abnormalities in the kidneys or obstructions such as kidney stones or tumors. Depending upon medical advice, a kidney biopsy may be performed. For information on current clinical trials and kidney disease treatment options visit the National Kidney Foundation (NKF).

Where can I get kidney tests near me?

Search for convenient kidney testing lab locations near you using our Lab Locator.