Reverse T3 (Blood) Test | Austin Pathology

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Reverse T3 (Blood)

Alternate Names	rT3
Test Code	RT3
Testing Laboratory	Referred Laboratory
Specimen Type	Blood
Container Type	Serum tube (Red Cap w. Yellow Insert)
Medicare Rebate	No - please complete Patient Financial Consent Form.pdf
Out of Pocket Costs	Please note: This service is not Medicare rebatable and patients may be charged. Out of Pocket cost - $60.00 Fee above is an indication only; please contact testing laboratory for up-to-date cost.
Ordering Information	There is no role for the measurement of reverse T3 (rT3) in the clinical assessment and management of thyroid disease. Reverse T3, or 3, 3’,5’-triiodothyronine is a metabolic product of the deiodination of thyroxine. It has a very short half-life of around 1 hour, and consequently has very labile serum levels. It is metabolically inactive. Measurement of rT3 makes no additional contribution to assessment of thyroid status. Please contact the Chemical Pathologist on ph:03 9496 5140 for further information.
Collection Instructions	-
Transport Instructions	Transport ambient at room temperature
Storage Instructions	Store refrigerated at 4°C
Testing Frequency	None
Min Test Volume	1mL
Add On Test Suitability	Add ons for this test cannot be performed.

Container ID	S, SP
CSR Instructions	Centrifuge, aliquot, and refrigerate.
Laboratory Instructions	Instructions for: Heidelberg Sendaways Department Confirm testing with Chemical Pathologist prior to dispatch.
External Laboratory	Australian Clinical Labs
Accredited Test	Yes

These PDF documents can be downloaded for your reference

Order of Draw (PDF)

Swab Collection Guide (PDF)

Pre-Transfusion Specimen Requirements (PDF)

Requirements for Pathology Service (PDF)