Diagnostic Lab Tests

Our goal: for patients to reclaim their lives and feel their absolute best.

We have more than 100 Riordan Diagnostic Lab Tests, profiles and panels to meet your specific testing needs.

VIEW A FULL LIST OF TESTS OFFERED       DOWNLOAD TEST CATALOG       LAB FAQ

Hormone Tests

  • TSH

    Order a TSH Hormone nutrient test.
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  • Testosterone

    Order a Testosterone hormone nutrient test.
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  • Free T4 (FT4)

    Order a T4, Free (Direct) hormone nutrient test.
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  • Free T3 (FT3)

    Order a T3, Free (Unbound) Hormone Nutrient Test.
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  • DHEA-S

    DHEA is produced in the adrenal cortex from pregnenolone. The half-life of DHEA is only about 30 minutes while the sulfated form lasts much longer. About 95% of DHEA is in the DHEA-S form. DHEA-S is used to produce estrogens and androgens in the adrenal glands, ovaries and testes. DHEA reaches ...
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