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South · Reverse T3 Test – rT3 Testing

Reverse T3 Test – rT3 Testing in Alabama

This page explains the reverse t3 test – rt3 testing, what it measures, and how to order it. The Reverse T3 Test measures the level of reverse triiodothyronine in the blood to assess thyroid function under certain conditions.

Sample typeBlood draw at a collection lab
ReferralNo referral required

What this test is

The Reverse T3 Test is a blood test that evaluates the level of reverse triiodothyronine (rT3), a hormone related to thyroid function. It is often used to assess thyroid activity in the context of nonthyroidal illness syndrome.

What it measures

  • Reverse T3 — reflects the body's conversion of thyroxine (T4) to triiodothyronine (T3)

What the test involves

The test involves a standard blood draw, typically from a vein in the arm. The collected sample is then analyzed in a laboratory.

Why it is often ordered

Clinicians may order this test to investigate thyroid function when a patient has symptoms that suggest abnormal thyroid activity. It helps differentiate between thyroid disorders and other conditions affecting thyroid hormone levels.

Preparation

Preparation for the Reverse T3 Test may vary, so it is important to follow the specific instructions provided by the laboratory conducting the test.

How results are reported

Results of the Reverse T3 Test are reported as a concentration of rT3 in the blood. Reference ranges can vary between laboratories, so results should be interpreted in context.

Before you go

  • Sample collection method
  • Preparation instructions
  • Turnaround time

Cities

Reverse T3 Test – rT3 Testing in Alabama communities

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

Birmingham704,676Reverse T3 Test – rT3 TestingHuntsville339,136Reverse T3 Test – rT3 TestingMobile322,079Reverse T3 Test – rT3 TestingMontgomery253,711Reverse T3 Test – rT3 TestingTuscaloosa148,523Reverse T3 Test – rT3 TestingHoover91,371Reverse T3 Test – rT3 TestingAuburn91,047Reverse T3 Test – rT3 TestingFlorence79,590Reverse T3 Test – rT3 TestingAnniston77,690Reverse T3 Test – rT3 TestingDothan72,389Reverse T3 Test – rT3 TestingDecatur69,710Reverse T3 Test – rT3 TestingMadison55,551Reverse T3 Test – rT3 TestingVestavia Hills38,504Reverse T3 Test – rT3 TestingPhenix City38,216Reverse T3 Test – rT3 TestingPrattville37,977Reverse T3 Test – rT3 TestingGadsden34,317Reverse T3 Test – rT3 TestingAlabaster33,133Reverse T3 Test – rT3 TestingOpelika30,810Reverse T3 Test – rT3 TestingNorthport30,334Reverse T3 Test – rT3 TestingEnterprise28,242Reverse T3 Test – rT3 TestingDaphne27,088Reverse T3 Test – rT3 TestingHomewood26,206Reverse T3 Test – rT3 TestingBessemer26,171Reverse T3 Test – rT3 TestingAthens25,213Reverse T3 Test – rT3 TestingTrussville25,027Reverse T3 Test – rT3 TestingPelham24,134Reverse T3 Test – rT3 TestingAlbertville22,268Reverse T3 Test – rT3 TestingOxford22,210Reverse T3 Test – rT3 TestingMountain Brook22,184Reverse T3 Test – rT3 TestingFairhope21,825Reverse T3 Test – rT3 TestingHelena20,680Reverse T3 Test – rT3 TestingFoley20,170Reverse T3 Test – rT3 TestingPrichard19,645Reverse T3 Test – rT3 TestingSelma18,429Reverse T3 Test – rT3 TestingTillmans Corner18,313Reverse T3 Test – rT3 TestingCullman17,892Reverse T3 Test – rT3 TestingTroy17,765Reverse T3 Test – rT3 TestingHueytown16,694Reverse T3 Test – rT3 TestingMillbrook16,675Reverse T3 Test – rT3 TestingCenter Point16,422Reverse T3 Test – rT3 TestingCalera16,126Reverse T3 Test – rT3 TestingMuscle Shoals15,969Reverse T3 Test – rT3 TestingSaraland15,942Reverse T3 Test – rT3 TestingGardendale15,920Reverse T3 Test – rT3 TestingTalladega15,782Reverse T3 Test – rT3 TestingScottsboro15,446Reverse T3 Test – rT3 TestingHartselle15,308Reverse T3 Test – rT3 TestingAlexander City14,765Reverse T3 Test – rT3 TestingFort Payne14,730Reverse T3 Test – rT3 TestingGulf Shores14,712Reverse T3 Test – rT3 TestingChelsea14,710Reverse T3 Test – rT3 TestingOzark14,396Reverse T3 Test – rT3 TestingJasper14,370Reverse T3 Test – rT3 TestingIrondale13,457Reverse T3 Test – rT3 TestingMcCalla13,221Reverse T3 Test – rT3 TestingMoody13,100Reverse T3 Test – rT3 TestingJacksonville13,076Reverse T3 Test – rT3 TestingPell City12,923Reverse T3 Test – rT3 TestingEufaula12,753Reverse T3 Test – rT3 TestingSylacauga12,512Reverse T3 Test – rT3 Testing