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Midwest · Reverse T3 Test – rT3 Testing

Reverse T3 Test – rT3 Testing in Michigan

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 Michigan communities

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

Detroit3,522,856Reverse T3 Test – rT3 TestingGrand Rapids604,311Reverse T3 Test – rT3 TestingAnn Arbor327,814Reverse T3 Test – rT3 TestingLansing312,829Reverse T3 Test – rT3 TestingFlint286,324Reverse T3 Test – rT3 TestingKalamazoo212,033Reverse T3 Test – rT3 TestingMuskegon164,136Reverse T3 Test – rT3 TestingWarren138,996Reverse T3 Test – rT3 TestingSterling Heights134,062Reverse T3 Test – rT3 TestingSouth Lyon128,071Reverse T3 Test – rT3 TestingSaginaw118,845Reverse T3 Test – rT3 TestingDearborn107,985Reverse T3 Test – rT3 TestingHolland100,202Reverse T3 Test – rT3 TestingLivonia95,294Reverse T3 Test – rT3 TestingJackson87,230Reverse T3 Test – rT3 TestingTroy86,912Reverse T3 Test – rT3 TestingPort Huron86,440Reverse T3 Test – rT3 TestingWestland84,961Reverse T3 Test – rT3 TestingFarmington Hills83,749Reverse T3 Test – rT3 TestingWyoming76,625Reverse T3 Test – rT3 TestingSouthfield76,196Reverse T3 Test – rT3 TestingRochester Hills75,990Reverse T3 Test – rT3 TestingBattle Creek75,608Reverse T3 Test – rT3 TestingBay City67,917Reverse T3 Test – rT3 TestingNovi65,369Reverse T3 Test – rT3 TestingTaylor63,071Reverse T3 Test – rT3 TestingDearborn Heights62,334Reverse T3 Test – rT3 TestingPontiac61,498Reverse T3 Test – rT3 TestingSt. Clair Shores59,046Reverse T3 Test – rT3 TestingRoyal Oak58,368Reverse T3 Test – rT3 TestingKentwood53,884Reverse T3 Test – rT3 TestingPortage48,767Reverse T3 Test – rT3 TestingRoseville47,692Reverse T3 Test – rT3 TestingEast Lansing47,427Reverse T3 Test – rT3 TestingMidland42,425Reverse T3 Test – rT3 TestingLincoln Park39,741Reverse T3 Test – rT3 TestingEastpointe34,148Reverse T3 Test – rT3 TestingSouthgate29,990Reverse T3 Test – rT3 TestingOak Park29,677Reverse T3 Test – rT3 TestingBurton29,532Reverse T3 Test – rT3 TestingMadison Heights28,719Reverse T3 Test – rT3 TestingAllen Park28,431Reverse T3 Test – rT3 TestingForest Hills28,327Reverse T3 Test – rT3 TestingHamtramck27,548Reverse T3 Test – rT3 TestingGarden City27,268Reverse T3 Test – rT3 TestingInkster25,849Reverse T3 Test – rT3 TestingHolt25,755Reverse T3 Test – rT3 TestingOkemos25,179Reverse T3 Test – rT3 TestingWalker25,149Reverse T3 Test – rT3 TestingNorton Shores25,040Reverse T3 Test – rT3 TestingWyandotte24,992Reverse T3 Test – rT3 TestingRomulus24,977Reverse T3 Test – rT3 TestingAuburn Hills24,202Reverse T3 Test – rT3 TestingAllendale23,999Reverse T3 Test – rT3 TestingWaverly23,328Reverse T3 Test – rT3 TestingMount Pleasant21,880Reverse T3 Test – rT3 TestingBirmingham21,728Reverse T3 Test – rT3 TestingAdrian20,674Reverse T3 Test – rT3 TestingMarquette20,561Reverse T3 Test – rT3 TestingYpsilanti20,448Reverse T3 Test – rT3 Testing