Midwest · Reverse T3 Test – rT3 Testing

Reverse T3 Test – rT3 Testing in Kansas

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 Kansas communities

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

Wichita491,916Reverse T3 Test – rT3 Testing Overland Park195,249Reverse T3 Test – rT3 Testing Kansas City155,745Reverse T3 Test – rT3 Testing Topeka146,473Reverse T3 Test – rT3 Testing Olathe140,339Reverse T3 Test – rT3 Testing Lawrence94,745Reverse T3 Test – rT3 Testing Shawnee67,021Reverse T3 Test – rT3 Testing Lenexa56,755Reverse T3 Test – rT3 Testing Manhattan54,794Reverse T3 Test – rT3 Testing Salina46,896Reverse T3 Test – rT3 Testing Hutchinson40,202Reverse T3 Test – rT3 Testing Leavenworth37,216Reverse T3 Test – rT3 Testing Leawood33,748Reverse T3 Test – rT3 Testing Garden City28,022Reverse T3 Test – rT3 Testing Dodge City27,899Reverse T3 Test – rT3 Testing Derby25,365Reverse T3 Test – rT3 Testing Emporia24,220Reverse T3 Test – rT3 Testing Gardner23,065Reverse T3 Test – rT3 Testing Junction City23,033Reverse T3 Test – rT3 Testing Prairie Village22,812Reverse T3 Test – rT3 Testing Hays20,870Reverse T3 Test – rT3 Testing Pittsburg20,667Reverse T3 Test – rT3 Testing Liberal19,340Reverse T3 Test – rT3 Testing Newton18,576Reverse T3 Test – rT3 Testing Andover15,162Reverse T3 Test – rT3 Testing Great Bend14,864Reverse T3 Test – rT3 Testing McPherson13,916Reverse T3 Test – rT3 Testing El Dorado12,855Reverse T3 Test – rT3 Testing Ottawa12,592Reverse T3 Test – rT3 Testing Arkansas City12,028Reverse T3 Test – rT3 Testing Winfield11,817Reverse T3 Test – rT3 Testing Lansing11,321Reverse T3 Test – rT3 Testing Merriam11,110Reverse T3 Test – rT3 Testing Haysville10,887Reverse T3 Test – rT3 Testing Atchison10,773Reverse T3 Test – rT3 Testing Mission9,884Reverse T3 Test – rT3 Testing Parsons9,652Reverse T3 Test – rT3 Testing Augusta9,299Reverse T3 Test – rT3 Testing Coffeyville9,032Reverse T3 Test – rT3 Testing Chanute8,737Reverse T3 Test – rT3 Testing Independence8,584Reverse T3 Test – rT3 Testing Valley Center8,365Reverse T3 Test – rT3 Testing Fort Riley8,006Reverse T3 Test – rT3 Testing Spring Hill7,883Reverse T3 Test – rT3 Testing Bonner Springs7,858Reverse T3 Test – rT3 Testing Park City7,817Reverse T3 Test – rT3 Testing Wellington7,745Reverse T3 Test – rT3 Testing Fort Scott7,579Reverse T3 Test – rT3 Testing Roeland Park6,871Reverse T3 Test – rT3 Testing Basehor6,717Reverse T3 Test – rT3 Testing Pratt6,618Reverse T3 Test – rT3 Testing Abilene6,507Reverse T3 Test – rT3 Testing Eudora6,457Reverse T3 Test – rT3 Testing De Soto6,160Reverse T3 Test – rT3 Testing Ulysses5,812Reverse T3 Test – rT3 Testing Paola5,733Reverse T3 Test – rT3 Testing Mulvane5,676Reverse T3 Test – rT3 Testing Maize5,469Reverse T3 Test – rT3 Testing Colby5,434Reverse T3 Test – rT3 Testing Tonganoxie5,383Reverse T3 Test – rT3 Testing