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 HOME TESTING KIT (KIT)

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, select Home Test Kits (KIT). LC, QD and KIT 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 NY, NJ and RI.

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  1. Urine Culture, Comprehensive

    Ordered if Routine Urine Culture was not diagnostic.

    Your Price

    $67.00

  2. Urinalysis, Routine With Microscopic Examination on Positives

    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.

    Your Price

    $22.00

  3. Urinalysis, Complete with Microscopic Examination

    Useful in the evaluation of conditions such as urinary tract infection (UTI), dehydration, and kidney stones.

    Your Price

    $25.00

  4. Uric Acid Blood Test

    Used to help diagnose the cause of recurrent kidney stones and to monitor people with gout for stone formation.

    Your Price

    $27.00

  5. Urea Nitrogen Urine Test, 24-Hour

    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.

    Your Price

    $69.00

  6. Sodium Urine Test, Random

    Random sodium urine test.

    Your Price

    $38.00

  7. Sodium Urine Test, 24-Hour

    Used in determining the cause of a sodium imbalance and for patients with kidney conditions to determine the cause of damage.

    Your Price

    $38.00

  8. Renin Activity Plasma Test

    To help determine the cause of hypertension in cases where signs of kidney disease are present.

    Your Price

    $99.00

  9. Renal Function (Kidney) Blood Test Panel

    A renal function panel is used to help detect conditions affecting the kidneys and to monitor people who are receiving treatment for illnesses affecting the kidneys.

    Your Price

    $28.00

  10. Protein Total Urine Test, Quantitative, 24-Hour

    Used to evaluate and monitor kidney function, and to detect kidney damage.

    Your Price

    $28.00

  11. Protein Electrophoresis Urine Test, Random

    Graph with quantitation of total urine protein, urine albumin, urine N11, urine N12, urine N2, urine N3-globulin fractions if present; quantitation (in %) of M-spike if present.

    Your Price

    $99.00

  12. Protein Electrophoresis Serum Test

    Measures the types of protein in the fluid (serum) part of a blood sample.

    Your Price

    $57.00

  13. Protein Electrophoresis Blood Test, Reflex to IFE

    This test is used to help monitor or diagnose disease categories as acute or chronic inflammation, liver disorder, hypogammaglobulinemia, and possible monoclonal gammopathies.

    Your Price

    $195.00

  14. Protein and Creatinine Urine Test, Random

    Protein/creatinine ratio in a first-morning or random untimed "spot" urine specimen is recommended testing to ascertain chronic kidney disease.

    Your Price

    $48.00

  15. Potassium Urine Test, 24-Hour

    Test that is used to detect abnormal concentrations of potassium, including high potassium (hyperkalemia) and low potassium (hypokalemia).

    Your Price

    $37.00

  16. Potassium Blood Test, RBC

    Provides a measurement of intracellular Potassium levels which can indicate deficiency sooner than an ordinary blood test.

    Your Price

    $139.00

  17. Porphyrins Urine Test, Quantitative, 24-Hour

    This test is used as follow up if Porphyrins, Quantitative Random Urine comes back abnormal.

    Your Price

    $78.00

  18. Phosphorus Urine Test, 24-Hour

    Used to evaluate calcium/phosphorus balance.

    Your Price

    $55.00

  19. Phosphorus Serum Test

    Phosphorus testing may be performed to measure high or low levels of phosphorus to determine a variety of differential diagnoses such as: dehydration, renal disease, liver disease, diabetic ketoacidosis. Phosphate levels may increase during the last trimester of pregnancy.

    Your Price

    $26.00

  20. Parathyroid Hormone (PTH) Intact Blood Test

    Diagnoses parathyroid disease and other diseases of calcium homeostasis; monitoring patients undergoing renal dialysis.

    Your Price

    $38.00

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