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Midwest · Reverse T3 Test – rT3 Testing

Reverse T3 Test – rT3 Testing in North Dakota

This page explains the reverse t3 test – rt3 testing, what it measures, and how to order it. The Reverse T3 blood test measures a form of thyroid hormone that may be elevated during certain illnesses.

Typical turnaround1-3 business days
Price range$118
PreparationFollow the lab's instructions.
Sample typeBlood draw at a collection lab
ReferralNo referral required

What this test is

Reverse T3 (rT3) is an inactive form of thyroid hormone. This test helps evaluate thyroid function, particularly in situations where other thyroid tests may appear normal.

What it measures

  • Reverse T3 (rT3) — reflects an inactive form of thyroid hormone

What the test involves

This test requires a blood sample, which is typically collected through a standard venipuncture procedure at a laboratory or clinic.

Why it is often ordered

Clinicians may order this test to help assess thyroid hormone metabolism, especially when considering conditions like nonthyroidal illness syndrome. It can provide additional information when evaluating thyroid health in the context of other medical conditions.

Preparation

You will need to follow specific instructions provided by the laboratory regarding preparation for this test. This may include fasting or avoiding certain medications.

How results are reported

Results are typically available within a few business days and will be reported to your clinician. Reference ranges, which indicate what is considered normal, vary between laboratories.

Before you go

  • Fasting requirements
  • Medication restrictions
  • Test turnaround time

Cities

Reverse T3 Test – rT3 Testing in North Dakota communities

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

Fargo207,310Reverse T3 Test – rT3 TestingBismarck89,825Reverse T3 Test – rT3 TestingGrand Forks63,767Reverse T3 Test – rT3 TestingMinot48,005Reverse T3 Test – rT3 TestingWest Fargo37,913Reverse T3 Test – rT3 TestingWilliston27,368Reverse T3 Test – rT3 TestingDickinson24,851Reverse T3 Test – rT3 TestingMandan23,784Reverse T3 Test – rT3 TestingJamestown15,823Reverse T3 Test – rT3 TestingWahpeton7,928Reverse T3 Test – rT3 TestingValley City6,586Reverse T3 Test – rT3 TestingWatford City5,725Reverse T3 Test – rT3 TestingMinot AFB5,375Reverse T3 Test – rT3 TestingGrafton4,186Reverse T3 Test – rT3 TestingLincoln4,126Reverse T3 Test – rT3 TestingHorace3,141Reverse T3 Test – rT3 TestingBeulah3,070Reverse T3 Test – rT3 TestingNew Town2,745Reverse T3 Test – rT3 TestingGrand Forks AFB2,678Reverse T3 Test – rT3 TestingHazen2,564Reverse T3 Test – rT3 TestingRugby2,546Reverse T3 Test – rT3 TestingCasselton2,493Reverse T3 Test – rT3 TestingBottineau2,141Reverse T3 Test – rT3 TestingCarrington2,133Reverse T3 Test – rT3 TestingLisbon2,109Reverse T3 Test – rT3 TestingStanley2,079Reverse T3 Test – rT3 TestingOakes1,981Reverse T3 Test – rT3 TestingMayville1,964Reverse T3 Test – rT3 TestingLangdon1,924Reverse T3 Test – rT3 TestingBelcourt1,751Reverse T3 Test – rT3 TestingHarvey1,701Reverse T3 Test – rT3 TestingHillsboro1,613Reverse T3 Test – rT3 TestingBowman1,604Reverse T3 Test – rT3 TestingGarrison1,577Reverse T3 Test – rT3 TestingPark River1,577Reverse T3 Test – rT3 TestingWashburn1,545Reverse T3 Test – rT3 TestingBurlington1,534Reverse T3 Test – rT3 TestingSurrey1,430Reverse T3 Test – rT3 TestingLarimore1,385Reverse T3 Test – rT3 TestingNew Rockford1,374Reverse T3 Test – rT3 TestingCavalier1,357Reverse T3 Test – rT3 TestingTioga1,335Reverse T3 Test – rT3 TestingParshall1,317Reverse T3 Test – rT3 TestingCando1,228Reverse T3 Test – rT3 TestingShell Valley1,227Reverse T3 Test – rT3 TestingThompson1,194Reverse T3 Test – rT3 TestingRolla1,192Reverse T3 Test – rT3 TestingMapleton1,169Reverse T3 Test – rT3 TestingFort Totten1,167Reverse T3 Test – rT3 TestingVelva1,120Reverse T3 Test – rT3 TestingHettinger1,116Reverse T3 Test – rT3 TestingCrosby1,076Reverse T3 Test – rT3 TestingEllendale1,067Reverse T3 Test – rT3 TestingEnderlin1,039Reverse T3 Test – rT3 TestingBeach1,017Reverse T3 Test – rT3 Testing