Blood testsHormones

Sex hormone binding globulin.

Measures SHBG, the protein that carries testosterone in the blood.

  • Markers1
  • SampleBlood draw
  • FastingNot stated
  • Draw timeAny time
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What it measures.

In plain English. This describes what a lab measures; it cannot tell you what your own result means.

  • Sex hormone binding globulinSHBG

    A protein made by the liver that carries testosterone and estradiol in the blood. How much there is changes how much testosterone is free.

How to prepare.

  1. The lab gives no fasting rule for this test. Ask when you order if you are unsure.
  2. Stop high dose biotin supplements 72 hours before the draw.

Often taken with it.

  • Hormones2 markers

    Testosterone, free and total

    Measures total testosterone and the share that circulates free.

    • No fasting
    • Morning draw

    Total T, Free T

  • Hormones1 marker

    Estradiol

    Measures estradiol, the main form of estrogen.

    E2

The waitlist makes no eligibility, diagnosis, treatment, prescribing, or medication access decisions.

Clinical questions, eligibility, and care decisions happen later with a licensed provider, outside this form and only where legally available.