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Amino Acid Urine Test

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This test measures amino acid levels in the blood. Amino acids are organic compounds that help create proteins, which your body needs to complete many of its essential functions.

What is this test?

Certain metabolic disorders may impede the body's ability to break down amino acids in proteins, or prevent the body from breaking down ammonia, which is an amino acid by-product. This can lead to serious problems with your immunity, or the build-up of toxic levels of ammonia within your body. 

 These 9 essential amino acids are included in the test:

  • Lysine
  • Histidine
  • Threonine
  • Methionine
  • Valine
  • Isoleucine
  • Leucine
  • Phenylalanine
  • Tryptophan
$400

+$15 service fee

Price does not include the Physician Service Fee ($6) and the Lab Collection Fee ($9). These non-refundable fees cover the ordering and oversight of lab tests and follow-up services when appropriate.

Next availability

Provided by Quest Diagnostics

Quest test codes:
36183

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How Does it Work?

  • 1. Select a test

    Choose from a wide range of panels and tests
  • 2. Pay online

    Pay online with a credit or debit card — no insurance needed
  • 3. Go to the lab

    Visit the lab of your choice
  • 4. Get fast results online

    We will email you when results are ready, in 1–3 business days

Frequently asked questions

The Amino Acid Urine Test works by collecting a urine sample and measuring the amounts of 30 amino acids in that sample. Nine of the amino acids your body requires are not produced internally, and must be derived from your diet — these are referred to as “essential amino acids.” 

Your provider may order a urine amino acid test to screen for nutritional deficiencies, digestive issues, or metabolic disorders, or to use in conjunction with other tests to diagnose or rule out liver or kidney disease. 

You may wish to order an Amino Acids Urine Test if you’ve exhibited symptoms of amino acid deficiency, including:

  • lethargy
  • digestive issues
  • fertility issues
  • trouble concentrating
  • decreased immunity

You cannot take an Amino Acid Urine Test at home — this test can only be administered by a medical professional at a licensed testing facility. 

Once you receive the results of your test, you will need to consult with your provider. Only a medical professional can advise you on the healthy ranges for specific amino acids, and help you develop a treatment plan if necessary. You can get an online consultation with a vetted, highly rated doctor through Tripment Health. 

Certain amino acids, such as leucine, threonine, methionine, histidine, glycine, serine, and taurine, may decrease slightly with age in males. For women, it is more common for threonine and serine to decrease over time. However, healthy amino acid levels typically can be restored with changes to your diet, or the addition of supplements. 

To prepare for an Amino Acid Urine Test, your provider may ask you to drink plenty of fluids before your appointment, to fill your bladder. Amino Acid Urine Tests are considered to be highly accurate, though they may be used in conjunction with Amino Acid Blood Tests for an even deeper analysis. When deciding between an amino acid blood versus urine test, consult with your doctor to see which one is most suitable to your needs. Amino Acid Urine Test results typically take 4-10 business days to process. 

The cost of an Amino Acid Urine Test listed on Tripment Health is transparent and final – you will never be asked to pay additional fees at the testing facility, or receive a surprise bill down the road. 


Tripment Health has partnered with nearly 7,000 lab test facilities across 48 states. Finding an Amino Acid Urine Test, current procedural technology (cpt) code 36183, is easier than ever. Add the lab tests you need to your cart, then select a testing facility conveniently close to you.