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Reverse T3 Blood Test

* This is not a home test kit. You will need to visit a local lab for testing.


Reverse T3 can be used to evaluate individuals with low T3, and to evaluate metabolism and thyroid function.

Acute diseases are known to alter thyroid hormones T3, T4 and TSH activity by production of a hormone Reverse T3 somewhere else in the body. It lowers levels of T3 to help adapt to illness.

If you are pregnant T3 levels can increase.

Recommended For:

Diagnosing and monitoring treatment of sick euthyroid syndrome.

Special Notes:

No special preparation is necessary prior to blood sample collection.

Tests Included:

Reverse T3 (90963)
Reverse T3 (070104)

Estimated Turn Around For Results:

2-10 Business Days

For an exact turnaround time for results, please contact us at Personalabs and we will contact the lab on your behalf as turnaround times vary depending on testing location or lab testing provider.

Additional information


LabCorp, Quest

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Generate & Print Out Lab Order

Our physician network will approve your order within 2-4hrs.



Visit the Lab

The test price decides which lab you will visit: Quest or Labcorp. Find a location in your area.



Get Your Results

Results can be provided in as little as 24-48 hrs. For more complex tests, please contact us for turn around times.


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