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Kidney Tests

A kidney function test shows whether the organs are properly regulating the amount of water and salts we have in our body, and whether the kidneys are efficiently filtering blood and aiding in eliminating waste products. Further, renal function tests measure the levels of urea, creatinine, and certain dissolved salts that can help determine whether or not the kidneys are functioning properly and paint a picture of your overall health. Order an online kidney blood test today and take the first step in preventing and diagnosing renal disease.

Browse Kidney Tests Subcategories

Choose One Lab: LABCORP (LC) or QUEST (QD) or ALL

Home Test Kits

Walk-In Lab is contracted with LabCorp (LC) and Quest Diagnostics (QD) for routine lab testing. Please choose LC or QD to complete your order. If you prefer to receive a kit by mail for specimen collection, please see our Home Test Kits. LC and QD tests must be ordered separately.

LabCorp: Online lab testing is prohibited in MA, MD, NY, NJ and RI.

Quest Diagnostics: Online lab testing is prohibited in AZ, NY, NJ and RI.

  • Comprehensive Metabolic Panel (CMP-14) with eGFR Blo...

    March Special: Save 15% with coupon code HEALTHY24. The Comprehensive Metabolic Panel (CMP-14) with EGFR Blood Test measures 14 different substances in the blood to assess the body's chemical balance and metabolism.
  • Urinalysis, Complete with Microscopic Examination

    March Special: Save 15% with coupon code HEALTHY24. A Urinalysis, Complete with Microscopic Examination is useful in the evaluation of conditions such as urinary tract infection (UTI), dehydration, and kidney stones.
  • Uric Acid Blood Test

    March Special: Save 15% with coupon code HEALTHY24. The Uric Acid Blood Test measures uric acid levels in the blood and helps screen for gout or kidney stone formation.
  • Basic Metabolic Panel (BMP8) Blood Test

    March Special: Save 15% with coupon code HEALTHY24. A Basic Metabolic Panel (BMP8) Blood Test is a regularly ordered group of 8 tests that gives important information about the current status of your health.
  • Urinalysis, Routine With Microscopic Examination on ...

    March Special: Save 15% with coupon code HEALTHY24. A routine Urinalysis with Microscopic Examination on Positives is used to detect abnormalities of urine; diagnose and manage renal diseases, urinary tract infection, urinary tract neoplasms, systemic diseases, and inflammatory or neoplastic diseases adjacent to the urinary tract.
  • Urine Culture Test, Routine

    March Special: Save 15% with coupon code HEALTHY24. The Urine Culture Test, Routine, detects bacteria and yeast in a urine sample to help diagnose a urinary tract infection (UTI).
  • Renal Function Blood Test Panel

    March Special: Save 15% with coupon code HEALTHY24. Renal Function Blood Test Panel evaluates kidney function, diagnose kidney-related disorders, screen for or monitor those with kidney disease.
  • Parathyroid Hormone (PTH) Intact without Calcium Blo...

    March Special: Save 15% with coupon code HEALTHY24. The Parathyroid Hormone (PTH) Intact without Calcium Blood Test measures the level of PTH in the blood to help screen for osteoporosis and other underlying health conditions.
  • Microalbumin/Creatinine Ratio Urine Test, Random

    March Special: Save 15% with coupon code HEALTHY24. The Microalbumin/Creatinine Ratio Urine Test, Random measures albumin and creatinine levels in a urine sample to help screen for kidney disease.
  • Phosphorus Serum Test

    March Special: Save 15% with coupon code HEALTHY24. The Phosphorus Serum Test measures the blood's phosphorus (phosphate) levels to help screen for an imbalance.
  • Ammonia Plasma Test

    March Special: Save 15% with coupon code HEALTHY24. The Ammonia Plasma Test measures ammonia levels in the blood to screen for hyperammonemia.
  • Vitamin D 1,25 Dihydroxy (Calcitriol) Blood Test

    March Special: Save 15% with coupon code HEALTHY24. The Vitamin D 1,25 Dihydroxy (Calcitriol) Blood Test measures the vitamin D levels in the blood to assist with differential diagnosis of hypocalcemia and to monitor bone disease or chronic kidney failure treatment. 
  • Kidney #1 Baseline Blood and Urine Test Panel

    March Special: Save 15% with coupon code HEALTHY24. The Kidney #1 Baseline Blood and Urine Test Panel consists of 3 comprehensive blood and urine tests that evaluate the overall health of the kidneys.
  • Electrolyte Blood Test Panel

    March Special: Save 15% with coupon code HEALTHY24. The Electrolyte Blood Test Panel measures electrolyte levels in the blood to help determine an electrolyte, fluid, or pH imbalance.
  • Lactic Acid Dehydrogenase (LD) Blood Test

    March Special: Save 15% with coupon code HEALTHY24. The Lactate Dehydrogenase (LD) Blood Test measures LD levels in the blood to screen and monitor tissue damage.
  • Calcium Ionized Serum Test

    March Special: Save 15% with coupon code HEALTHY24. The Calcium Ionized Serum Test measures ionized calcium levels in the blood to help screen for, diagnose, and monitor various conditions related to the bones, heart, nerves, kidneys, and teeth.
  • Protein and Creatinine Urine Test, Random

    March Special: Save 15% with coupon code HEALTHY24. A protein and creatinine urine test, random measures the protein/creatinine ratio in a first-morning or random untimed "spot" urine specimen is recommended testing to ascertain chronic kidney disease.
  • Creatinine Serum Test

    March Special: Save 15% with coupon code HEALTHY24. The Creatinine Serum Test measures the level of creatinine in the blood, which can help detect kidney disease.
  • Urine Culture, Comprehensive

    March Special: Save 15% with coupon code HEALTHY24. An Urine Culture, Comprehensive is ordered if Routine Urine Culture was not diagnostic.
  • Complement C3 Blood Test

    March Special: Save 15% with coupon code HEALTHY24. A Complement C3 Blood Test is used to determine whether deficiencies or abnormalities in the proteins that are part of the complement system are contributing to increased infections or increased autoimmune activity; and to monitor the activity of autoimmune diseases.
  • Cortisol Urine Test, Urinary Free, 24-Hour

    March Special: Save 15% with coupon code HEALTHY24. The Cortisol Urine Test, Urinary Free, 24-Hour, measures cortisol levels in the urine over 24 hours to help screen for adrenal gland disorders.
  • Complement C4 Blood Test

    March Special: Save 15% with coupon code HEALTHY24. The Complement C4 Blood Test monitors and diagnoses autoimmune disorders by measuring complement C4 levels in the blood.
  • Beta 2 Microglobulin Serum Test

    March Special: Save 15% with coupon code HEALTHY24. The Beta 2 Microglobulin Serum Test helps evaluate the severity and prognosis of certain cancers and screens for kidney disorders.
  • Cystatin C Blood Test

    March Special: Save 15% with coupon code HEALTHY24. A Cystatin C Blood Test is used to screen for and monitor kidney dysfunction in those with known or suspected kidney disease.
  • Protein Electrophoresis Serum Test

    March Special: Save 15% with coupon code HEALTHY24. The Protein Electrophoresis Serum Test measures the types of protein in a blood serum sample.
  • Microalbumin Urine Test, Random

    March Special: Save 15% with coupon code HEALTHY24. The Microalbumin Urine Test, Random, measures albumin levels in urine to detect or monitor kidney damage or disease in at-risk patients.
  • Calcium Urine Test, 24-Hour

    March Special: Save 15% with coupon code HEALTHY24. The Calcium Urine Test, 24-Hour, measures calcium levels in the urine over 24 hours to help screen for, diagnose, and monitor various conditions related to the bones, heart, nerves, kidneys, and teeth.
  • Erythropoietin (EPO) Serum Test

    March Special: Save 15% with coupon code HEALTHY24. An EPO Test is a blood disorder serum test used to determine erythropoietin level, an important hormone produced by the kidneys that is critical for the formation of red blood cells by the bone marrow.
  • Complement Total (CH50) Blood Test

    March Special: Save 15% with coupon code HEALTHY24. The Complement Total (CH50) Blood Test monitors and diagnoses autoimmune disorders by measuring total complement levels in the blood.
  • Aldosterone Blood Test, LC-MS

    March Special: Save 15% with coupon code HEALTHY24. The Aldosterone Blood Test, LC-MS, measures aldosterone levels in the blood to help diagnose and manage conditions related to blood pressure and electrolyte balance.
  • Aldosterone:Renin Ratio Blood Test

    March Special: Save 15% with coupon code HEALTHY24. Aldosterone-renin activity ratio blood test measures the levels of the hormones aldosterone and renin in your blood.
  • Gastrin Blood Test

    March Special: Save 15% with coupon code HEALTHY24. The Gastrin Blood Test is used to detect an overproduction of gastrin, to help diagnose Zollinger-Ellison syndrome and G-cell hyperplasia, and to monitor for recurrence of a gastrin-producing tumor (gastrinoma).
  • Antineutrophil Cytoplasmic Antibodies (ANCA) Blood T...

    March Special: Save 15% with coupon code HEALTHY24. The Antineutrophil Cytoplasmic Antibodies (ANCA) Blood Test detects and measures ANCA in the blood to screen for certain forms of systemic vasculitis.
  • Protein Total Urine Test, Quantitative, 24-Hour

    March Special: Save 15% with coupon code HEALTHY24. Used to evaluate and monitor kidney function, and to detect kidney damage.
  • Urinalysis and Urine Culture Test Panel

    March Special: Save 15% with coupon code HEALTHY24. The Urinalysis, Complete (UA) & Urine Culture Panel evaluates several components of a urine sample to help diagnose a urinary tract infection (UTI).
  • Kidney #2 Essential Blood and Urine Test Panel

    March Special: Save 15% with coupon code HEALTHY24. The Kidney #2 Essential Blood and Urine Test Panel consists of 5 comprehensive blood and urine tests that evaluate the overall health of the kidneys.
  • Antidiuretic Hormone (ADH) Profile Blood Test

    March Special: Save 15% with coupon code HEALTHY24. The Antidiuretic Hormone (ADH) Profile measures ADH and osmolality levels in the blood to help detect a deficiency, evaluate the body's fluid balance, and differentiate between the types of diabetes insipidus.
  • Potassium Blood Test, RBC

    March Special: Save 15% with coupon code HEALTHY24. The Potassium Blood Test, RBC provides a measurement of intracellular Potassium levels which can indicate deficiency sooner than an ordinary blood test.
  • Prealbumin Blood Test

    March Special: Save 15% with coupon code HEALTHY24. The Prealbumin Blood Test measures prealbumin levels in the blood to diagnose and monitor problems with nutritional health.
  • Alkaline Phosphatase Blood Test

    March Special: Save 15% with coupon code HEALTHY24. The Alkaline Phosphatase Blood Test is used to screen for liver or bone diseases by measuring ALP levels in the blood.
  • Urea Nitrogen (BUN) Serum Test

    March Special: Save 15% with coupon code HEALTHY24. A Urea Nitrogen (BUN) Serum Test is used to measure the amount of urea in the blood.
  • Albumin Serum Test

    March Special: Save 15% with coupon code HEALTHY24. Albumin blood test evaluates nutritional status, blood oncotic pressure, evaluation of renal disease with proteinuria, and other chronic diseases.
  • Kidney #3 Extreme Blood and Urine Test Panel

    March Special: Save 15% with coupon code HEALTHY24. The Kidney #3 Extreme Blood and Urine Test Panel consists of 10 comprehensive blood and urine tests that evaluate the overall health of the kidneys.
  • Porphyrins Urine Test, Quantitative, Random

    March Special: Save 15% with coupon code HEALTHY24. The porphyrins urine test is the initial test for porphyrias.
  • Potassium Urine Test, 24-Hour

    March Special: Save 15% with coupon code HEALTHY24. A 24-hour Potassium Urine Test is used to detect abnormal concentrations of potassium, including high potassium (hyperkalemia) and low potassium (hypokalemia).
  • Creatinine Urine Test, 24-Hour

    March Special: Save 15% with coupon code HEALTHY24. A Creatinine Urine Test is used to determine glomerular filtration rate, which helps to measure how well the kidney functions.
  • Chromatin (Nucleosomal) Antibody Blood Test

    March Special: Save 15% with coupon code HEALTHY24. The Chromatin (Nucleosomal) Antibody Blood Test is useful in diagnosing SLE (systemic lupus erythmatosis). 
  • Oxalate Urine Test, Quantitative, 24-Hour

    March Special: Save 15% with coupon code HEALTHY24. The Oxalate Urine Test, Quantitative, 24-Hour, measures oxalate in the urine over 24 hours to help screen for stone formation or hyperoxaluria.
  • Creatinine Clearance 24-Hour Urine and Blood Test

    March Special: Save 15% with coupon code HEALTHY24. A Creatinine Clearance 24-Hour Urine and Blood Test is used to evaluate the rate and efficiency of kidney filtration.
  • Microalbumin Urine Test, 24-Hour

    March Special: Save 15% with coupon code HEALTHY24. The Microalbumin Urine Test, 24-Hour, measures albumin levels in the urine over 24 hours to help screen for kidney disease.
  • Protein Total Urine Test, 24-Hour with Creatinine

    March Special: Save 15% with coupon code HEALTHY24. A Protein Total Urine Test, 24-Hour with Creatinine is used to evaluate and monitor kidney function, and to detect kidney damage.
  • Sodium Urine Test, 24-Hour

    March Special: Save 15% with coupon code HEALTHY24. A 24-hour Sodium Urine Test is used in determining the cause of a sodium imbalance and for patients with kidney conditions to determine the cause of damage.
  • Urinalysis Macroscopic, Dipstick

    March Special: Save 15% with coupon code HEALTHY24. The Urinalysis Macroscopic, Dipstick Test is a comprehensive urine examination assessing color, clarity, and pH level to provide insights into urinary system health.
  • Sodium Urine Test, Random

    March Special: Save 15% with coupon code HEALTHY24. A sodium urine test is a work-up volume depletion, acute renal failure, acute oliguria, and differential diagnosis of hyponatremia.
  • Renin Activity Plasma Test

    March Special: Save 15% with coupon code HEALTHY24. A Plasma Renin helps determine the cause of hypertension in cases where signs of kidney disease are present.
  • Protein Electrophoresis Urine Test, Random

    March Special: Save 15% with coupon code HEALTHY24. A protein electrophoresis urine test is a graph with quantitation of total urine protein, urine albumin, urine N1, urine N2, urine N3-globulin fractions if present; quantitation (in %) of M-spike if present.
  • Creatinine Urine Test, Random

    March Special: Save 15% with coupon code HEALTHY24. A Creatinine Urine Test, Random is useful in monitoring kidney function. 
  • Osmolality Urine Test

    March Special: Save 15% with coupon code HEALTHY24. The Osmolality Urine Test measures the concentration of toxins in the urine to help assess the body's water and electrolyte balance and screen for hyponatremia.
  • Porphyrins Urine Test, Quantitative, 24-Hour

    March Special: Save 15% with coupon code HEALTHY24. A Porphyrins Urine Test, Quantitative, 24-Hour is used as follow up if Porphyrins, Quantitative Random Urine comes back abnormal.
  • Osmolality Blood Test

    March Special: Save 15% with coupon code HEALTHY24. An osmolality blood test is used to evaluate the level of sodium, glucose, and blood urea nitrogen (a byproduct of proteins as they are broken down by the body) in your bloodstream. 
  • Chloride Urine Test, 24-Hour

    March Special: Save 15% with coupon code HEALTHY24. A sodium urine test determines if you are hydrated properly. It can also evaluate your kidney function, especially with regard to its sodium control properties.
  • Magnesium Urine Test, 24-Hour

    March Special: Save 15% with coupon code HEALTHY24. The Magnesium Urine Test measures the amount of magnesium (an electrolyte) in urine collected over 24 hours.  This test is used to evaluate and manage electrolyte problems in the body.
  • Fluoride Blood Test

    March Special: Save 15% with coupon code HEALTHY24. The fluoride blood test is typically ordered when someone is experiencing symptoms of fluoride exposure especially if they have had contact with chemicals containing fluoride or work in an industry where airborne exposure to fluoride is common.
  • Aldosterone Urine Test, 24-Hour

    March Special: Save 15% with coupon code HEALTHY24. The aldosterone urine test is used in the diagnosis and evaluation of primary aldosteronism, selective hypoaldosteronism, edematous states, and other conditions of electrolyte imbalance.
  • Urea Nitrogen Urine Test, 24-Hour

    March Special: Save 15% with coupon code HEALTHY24. A Urea Nitrogen Urine Testis a Renal function test; coarse nitrogen-wasting test on patients on hyperalimentation; indicate nitrogen balance in hyperalimentation; rule out tap of urinary bladder in amniocentesis, paracentesis.
  • Phosphorus Urine Test, 24-Hour

    March Special: Save 15% with coupon code HEALTHY24. A Phosphorus Urine Test, 24-Hour is used to evaluate calcium/phosphorus balance.
  • Protein Electrophoresis Blood Test, Reflex to IFE

    March Special: Save 15% with coupon code HEALTHY24. The Protein Electrophoresis Blood Test is used to help monitor or diagnose disease categories as acute or chronic inflammation, liver disorder, hypogammaglobulinemia, and possible monoclonal gammopathies.
  • PTH Antibody Blood Test

    March Special: Save 15% with coupon code HEALTHY24. The PTH Antibody Blood Test detects PTH antibodies to help screen for autoimmune disorders related to the parathyroid gland.
  • Creatinine Clearance 24-Hour Urine and Blood Test Wi...

    March Special: Save 15% with coupon code HEALTHY24. A Creatinine Clearance 24-Hour Urine and Blood Test With Body Surface Area Normalization includes Serum creatinine; urine creatinine.
  • Bicarbonate Urine Test

    March Special: Save 15% with coupon code HEALTHY24. The bicarbonate urine test measures the amount of bicarbonate, a form of carbon dioxide, in the urine.
  • Protein Electrophoresis Urine Test With Interpretati...

    March Special: Save 15% with coupon code HEALTHY24. The Protein Electrophoresis Urine Test With Interpretation, 24-Hour With Reflex to IFE, 24-Hour Urine measures protein levels in a urine sample collected over 24 hours and identifies different types of proteins with a reflex to IFE if abnormalities are detected.

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