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Pacific · Thyroid Tests

Thyroid Tests in California

Thyroid Tests is a laboratory test you can request directly. Assess your thyroid health with convenient and accessible lab testing. Order the specific thyroid tests you need without a doctor's referral.

Typical turnaround1-3 business days
Price range$119
PreparationFollow the lab's instructions.
Sample typeBlood draw at a collection lab
ReferralNo referral required

What this test is

Thyroid tests are laboratory analyses that measure levels of hormones produced by the thyroid gland. These hormones play a crucial role in regulating metabolism, energy levels, and many other bodily functions.

What it measures

  • TSH (Thyroid Stimulating Hormone) — reflects the pituitary gland's signal to the thyroid
  • Free T4 (Thyroxine) — reflects the main thyroid hormone available for use by the body
  • Free T3 (Triiodothyronine) — reflects the active thyroid hormone that regulates metabolism
  • Thyroid Peroxidase Antibodies (TPOAb) — reflects antibodies that can indicate autoimmune thyroid disease
  • Thyroglobulin Antibodies (TgAb) — reflects antibodies that can indicate autoimmune thyroid disease

What the test involves

This test typically involves a standard blood draw from a vein in your arm. A small sample of blood will be collected and sent to the laboratory for analysis.

Why it is often ordered

Clinicians often order thyroid tests to evaluate symptoms related to an overactive or underactive thyroid gland. They can also be used to monitor thyroid function and the effectiveness of treatment.

Preparation

Follow the specific preparation instructions provided by the laboratory where you will have your sample collected. Some tests may require fasting.

How results are reported

Your test results will be reported to you, usually within a few business days. It is important to note that reference ranges, which indicate what is considered normal, can vary between laboratories.

Before you go

  • Fasting requirements
  • Collection site hours
  • Specific test preparation

Cities

Thyroid Tests in California communities

Choose your city for local context and to request this test.

Los Angeles12,121,244Thyroid TestsSan Francisco3,290,197Thyroid TestsSan Diego3,084,174Thyroid TestsRiverside2,022,285Thyroid TestsSacramento1,924,167Thyroid TestsSan Jose1,729,879Thyroid TestsFresno719,558Thyroid TestsConcord640,270Thyroid TestsBakersfield590,845Thyroid TestsMission Viejo588,540Thyroid TestsMurrieta509,526Thyroid TestsLong Beach466,565Thyroid TestsOakland437,548Thyroid TestsStockton406,822Thyroid TestsVictorville389,060Thyroid TestsModesto382,994Thyroid TestsLancaster381,732Thyroid TestsOxnard366,330Thyroid TestsIndio361,831Thyroid TestsAnaheim348,204Thyroid TestsAntioch322,796Thyroid TestsSanta Rosa314,196Thyroid TestsSanta Ana313,818Thyroid TestsIrvine297,868Thyroid TestsSanta Clarita275,230Thyroid TestsChula Vista274,818Thyroid TestsVisalia249,804Thyroid TestsFremont231,502Thyroid TestsSan Bernardino220,821Thyroid TestsThousand Oaks211,045Thyroid TestsMoreno Valley208,371Thyroid TestsFontana208,087Thyroid TestsSalinas199,290Thyroid TestsHuntington Beach198,735Thyroid TestsSanta Barbara198,240Thyroid TestsGlendale196,512Thyroid TestsHemet191,170Thyroid TestsVallejo181,882Thyroid TestsElk Grove175,510Thyroid TestsOntario175,223Thyroid TestsOceanside174,461Thyroid TestsRancho Cucamonga173,946Thyroid TestsGarden Grove172,708Thyroid TestsPalmdale167,987Thyroid TestsSanta Cruz165,933Thyroid TestsHayward162,254Thyroid TestsCorona157,844Thyroid TestsMerced157,617Thyroid TestsSunnyvale155,550Thyroid TestsPomona151,592Thyroid TestsEscondido151,443Thyroid TestsTorrance147,156Thyroid TestsRoseville145,687Thyroid TestsFairfield145,163Thyroid TestsFullerton142,964Thyroid TestsSanta Maria142,230Thyroid TestsOrange139,195Thyroid TestsPasadena138,771Thyroid TestsYuba City129,536Thyroid TestsSanta Clara127,922Thyroid Tests