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.

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Hormone Tests

  • TSH

    A TSH test is done to find out if your thyroid gland is working the way it should. It can tell you if it’s overactive (hyperthyroidism) or underactive (hypothyroidism). The test can also detect a thyroid disorder before you have any symptoms. If untreated, a thyroid disorder can cause health ...
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  • Testosterone

    Testosterone is the primary male sex hormone and anabolic steroid. In male humans, testosterone plays a key role in the development of male reproductive tissues such as testes and prostate, as well as promoting secondary sexual characteristics such as increased muscle and bone mass, and the ...
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  • Free T4 (FT4)

    Thyroxine (T4) is one of two major hormones produced by the thyroid gland, a small butterfly-shaped organ that lies flat across the windpipe at the base of the throat. The other major thyroid hormone is called triiodothyronine (T3) and together they help control the rate at which the body uses ...
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  • Free T3 (FT3)

    Two hormones are produced by the thyroid gland, T4, and T3. T3 is the more active hormone and controls most of the body’s metabolism. When the thyroid is underactive (low T3) the body functions slow down. Some of the symptoms a person could experience are weight gain, skin and hair become dry, ...
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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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