LabInformationLab tests, explained

Testosterone Level Test in California

This page explains the testosterone level test, what it measures, and how to arrange it. A testosterone level test measures the amount of testosterone, a hormone that affects sex drive, muscle mass, and mood, in your blood. It is ordered to evaluate symptoms like low energy, infertility, or erectile difficulties, or to monitor hormone therapy. Across California, part of Pacific, the testosterone level test can be ordered directly and collected at a certified site — no referral required.

Sample type
blood
Category
Hormone
Turnaround
1-3 business days
Price
$118
Referral
Not required

A testosterone level test measures the amount of testosterone, a hormone that affects sex drive, muscle mass, and mood, in your blood. It is ordered to evaluate symptoms like low energy, infertility, or erectile difficulties, or to monitor hormone therapy.

What it measures

  • Total testosterone — The main measure of all testosterone in your blood.
  • Free testosterone — The small portion not attached to proteins, which is active in your body.
  • Bioavailable testosterone — Testosterone that is loosely bound and easily used by tissues.
  • SHBG (sex hormone-binding globulin) — A protein that binds testosterone and can affect total levels.
  • Albumin — Another protein that binds hormones; sometimes checked with SHBG.

Who it is for

Doctors typically order this test for men with symptoms of low testosterone, such as fatigue or reduced sex drive, and for women with excess hair growth or irregular periods. It may also be used to monitor testosterone therapy.

Preparation

Fasting is not usually required. Because testosterone levels are highest in the morning, your doctor may ask you to have the blood drawn before 10 a.m. Tell your provider about any medications or supplements you take.

Results and what they mean

Results are reported as a number in nanograms per deciliter (ng/dL) or similar units, alongside a reference range. Your clinician interprets the result based on your age, sex, symptoms, and other tests. This is general information only and not medical advice; discuss your results with a qualified healthcare provider.

Requesting the Testosterone Level Test in California

Order online, choose a certified collection site in California, and review results through a secure portal. No referral is required, and orders are processed confidentially. With coastal metros, inland towns, and rural counties with very different access to testing, it pays to schedule your collection in advance.

Frequently asked questions

Do I need to fast for this test?

No, fasting is not typically required. However, morning testing is often recommended because testosterone levels vary throughout the day.

How long does it take to get results?

Most results are available within 1 to 3 business days.

Can I check my testosterone at home?

Some home test kits are available, but they may not be as accurate as a blood draw at a lab. Discuss any home results with your doctor.

What can affect my testosterone level?

Time of day, stress, sleep, medications, and certain health conditions can all influence your level. Your doctor will consider these factors when interpreting your result.

Testosterone Level Test by city in California

All testing in California →   Full Testosterone Level Test guide →