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Renal Function

The renal system, also known as the urinary system, includes the kidneys, the ureters, the bladder, and the urethra. The system works together to help rid the body of waste, as well as to stabilize blood pressure, blood pH and blood volume, and electrolyte levels. Kidneys: All blood passes through the kidneys. The kidneys filter and process the blood, removing what is unnecessary and reabsorbing vital nutrients back into the body. The waste is processed into urine. Ureters: The ureters are long and thin fibrous tubes that connect the kidneys to the bladder. One ureter is connected to each kidney. Urine passes from the kidneys into the ureters that lead the urine down to the bladder. Bladder: The bladder is used as a storage space for waste that needs to be excreted from the body. On average, the bladder can hold 400ml to 600ml at a time of the one to two liters of urine that are produced each day. Urethra: During urination, waste passes from the bladder to the urethra, which then passes the urine outside of the body. The length of the urethra is the only difference between the male urinary system and the female urinary system.

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...

    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.
  • Basic Metabolic Panel (BMP8) Blood Test

    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.
  • Renal Function Blood Test Panel

    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...

    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

    The Microalbumin/Creatinine Ratio Urine Test, Random measures albumin and creatinine levels in a urine sample to help screen for kidney disease.
  • Vitamin D 1,25 Dihydroxy (Calcitriol) Blood Test

    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. 
  • Toxic Metals 24-Hour Urine -Doctor's Data Test Kit

    The Urine Toxic Metals, 24-Hour Test Kit evaluates exposure to potentially toxic elements and monitors metal detoxification therapy's effectiveness in a urine sample over 24 hours.
  • Creatinine Serum Test

    The Creatinine Serum Test measures creatinine levels in a blood sample and helps screen for kidney disease.
  • Cystatin C Blood Test

    A Cystatin C Blood Test is used to screen for and monitor kidney dysfunction in those with known or suspected kidney disease.
  • Hair Toxic Element Exposure Profile- Doctor's Data T...

    The Hair Element Exposure Profile evaluates exposure to 31 essential and potentially toxic elements in a hair sample and monitors the progress of metal detoxification therapy.
  • Protein Total Urine Test, Quantitative, 24-Hour

    Used to evaluate and monitor kidney function, and to detect kidney damage.
  • Potassium Blood Test, RBC

    The Potassium Blood Test, RBC provides a measurement of intracellular Potassium levels which can indicate deficiency sooner than an ordinary blood test.
  • Albumin Serum Test

    Albumin blood test evaluates nutritional status, blood oncotic pressure, evaluation of renal disease with proteinuria, and other chronic diseases.
  • Urea Nitrogen (BUN) Serum Test

    A Urea Nitrogen (BUN) Serum Test is used to measure the amount of urea in the blood.
  • Urine Toxic and Essential Elements Test Kit - Doctor...

    The Urine Toxic & Essential Elements Test Kit evaluates exposure to potentially toxic elements and monitors metal detoxification therapy's effectiveness.
  • Potassium Urine Test, 24-Hour

    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

    A Creatinine Urine Test is used to determine glomerular filtration rate, which helps to measure how well the kidney functions.
  • Creatinine Clearance 24-Hour Urine and Blood Test

    A Creatinine Clearance 24-Hour Urine and Blood Test is used to evaluate the rate and efficiency of kidney filtration.
  • Sodium Urine Test, 24-Hour

    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.
  • Sodium Urine Test, Random

    A sodium urine test is a work-up volume depletion, acute renal failure, acute oliguria, and differential diagnosis of hyponatremia.
  • Creatinine Urine Test, Random

    A Creatinine Urine Test, Random is useful in monitoring kidney function. 
  • Osmolality Blood Test

    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. 
  • Amino Acids 24-Hour Urine - Doctor's Data Test Kit

    The amino acid (AA) 24-hour urine aids in the identification of dietary protein adequacy and amino acid balance, gastrointestinal dysfunctions, forms of protein intolerance, vitamin and mineral deficiencies, renal and hepatic dysfunction, psychiatric abnormalities, susceptibility to inflammatory response and oxidative stress, reduced detoxification capacity and many other inherent and acquired disorders in AA metabolism.
  • Urea Nitrogen Urine Test, 24-Hour

    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.
  • Toxic Element Clearance Profile, Urine - Genova Test...

    The Toxic Element Clearance Profile measures urinary excretion of a diverse range of potentially harmful elements. Both well-known toxins such as lead and mercury, and new technology toxins such as niobium are assessed in this toxic element test.
  • Whole Blood Elements Kit - Doctor's Data Kit

    The Whole Blood Elements Kit is an assessment of element levels in whole blood is a valuable tool for identification of dietary adequacy, gastrointestinal, renal and endocrine functions, and excess or deficiency conditions.  Note: This is a pre-paid shipping test kit that will be mailed and it requires a blood draw. Please Click Here to locate a lab for specimen collection.
  • Creatinine Clearance 24-Hour Urine and Blood Test Wi...

    A Creatinine Clearance 24-Hour Urine and Blood Test With Body Surface Area Normalization includes Serum creatinine; urine creatinine.
  • Bicarbonate Urine Test

    The bicarbonate urine test measures the amount of bicarbonate, a form of carbon dioxide, in the urine.

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