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This is a blood test to check levels of certain amino acids in the blood, and is primarily ordered by doctors to check for signs of conditions like urea cycle defects.

This includes:

  • Taurine
  • Glycine
  • Tyrosine
  • Glutamate
  • Homocystine

… and 31 others.

Expected turnaround is 3-6 days, although this can vary depending on other tests ordered for the same blood draw, and expected variation in test handling.

This test has not been cleared or approved by the FDA.