South · Reverse T3 Test – rT3 Testing

Reverse T3 Test – rT3 Testing in South Carolina

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 South Carolina communities

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

Charleston685,517Reverse T3 Test – rT3 Testing Columbia640,502Reverse T3 Test – rT3 Testing Greenville450,487Reverse T3 Test – rT3 Testing Myrtle Beach281,180Reverse T3 Test – rT3 Testing Spartanburg216,021Reverse T3 Test – rT3 Testing Mauldin149,687Reverse T3 Test – rT3 Testing Rock Hill115,292Reverse T3 Test – rT3 Testing North Charleston114,542Reverse T3 Test – rT3 Testing Mount Pleasant88,900Reverse T3 Test – rT3 Testing Florence88,709Reverse T3 Test – rT3 Testing Anderson80,657Reverse T3 Test – rT3 Testing Sumter77,626Reverse T3 Test – rT3 Testing Hilton Head Island74,248Reverse T3 Test – rT3 Testing Summerville50,318Reverse T3 Test – rT3 Testing Goose Creek44,502Reverse T3 Test – rT3 Testing Greer35,151Reverse T3 Test – rT3 Testing Aiken31,516Reverse T3 Test – rT3 Testing Bluffton27,596Reverse T3 Test – rT3 Testing Socastee24,657Reverse T3 Test – rT3 Testing Carolina Forest24,642Reverse T3 Test – rT3 Testing Fort Mill24,069Reverse T3 Test – rT3 Testing North Augusta24,013Reverse T3 Test – rT3 Testing Taylors23,348Reverse T3 Test – rT3 Testing Simpsonville23,190Reverse T3 Test – rT3 Testing Lexington23,068Reverse T3 Test – rT3 Testing Easley22,643Reverse T3 Test – rT3 Testing Greenwood22,363Reverse T3 Test – rT3 Testing Conway22,001Reverse T3 Test – rT3 Testing St. Andrews21,383Reverse T3 Test – rT3 Testing Wade Hampton20,879Reverse T3 Test – rT3 Testing Hanahan20,381Reverse T3 Test – rT3 Testing Five Forks19,158Reverse T3 Test – rT3 Testing North Myrtle Beach18,502Reverse T3 Test – rT3 Testing West Columbia17,265Reverse T3 Test – rT3 Testing Clemson17,238Reverse T3 Test – rT3 Testing Red Hill16,060Reverse T3 Test – rT3 Testing Berea15,892Reverse T3 Test – rT3 Testing Seven Oaks15,561Reverse T3 Test – rT3 Testing Dentsville15,245Reverse T3 Test – rT3 Testing Gantt14,790Reverse T3 Test – rT3 Testing Ladson14,711Reverse T3 Test – rT3 Testing Cayce13,637Reverse T3 Test – rT3 Testing Lake Wylie13,560Reverse T3 Test – rT3 Testing Parker13,019Reverse T3 Test – rT3 Testing Beaufort12,899Reverse T3 Test – rT3 Testing Orangeburg12,779Reverse T3 Test – rT3 Testing Port Royal12,734Reverse T3 Test – rT3 Testing Moncks Corner12,685Reverse T3 Test – rT3 Testing Gaffney12,560Reverse T3 Test – rT3 Testing Tega Cay12,336Reverse T3 Test – rT3 Testing Oak Grove11,803Reverse T3 Test – rT3 Testing James Island11,618Reverse T3 Test – rT3 Testing Irmo11,581Reverse T3 Test – rT3 Testing Forest Acres10,621Reverse T3 Test – rT3 Testing Garden City10,600Reverse T3 Test – rT3 Testing Boiling Springs10,591Reverse T3 Test – rT3 Testing Newberry10,496Reverse T3 Test – rT3 Testing Fountain Inn10,237Reverse T3 Test – rT3 Testing Red Bank10,070Reverse T3 Test – rT3 Testing Little River9,929Reverse T3 Test – rT3 Testing