Reverse T3 (Blood)

Referring Laboratory

Automation, ALSS, LabPlus, Auckland City Hospital

Testing Laboratory

NSW Health Pathology - Performed at Prince of Wales Hospital Pathology, Randwick NSW, Australia

Department

Chemical Pathology

Delphic Registration Code (Alpha Code)

MSN

Test Code (Numeric Code)

9932

Synonyms

RT3, Triiodothyronine reverse, Reverse Triiodothyronine

This test may be vetted by the laboratory. Please include relevant clinical information on the request form to ensure appropriate tests are approved. See the 'Clinical Information' section on the testing laboratory's test guide for more information on the indications for testing.

Specimen Type

• Serum

Specimen Requirements

Tube/Container Type:

Preferred

• SST II (Gold Cap)

Acceptable

• SST(Microtainer)

Preferred Sample Volume (ml)

2

Minimum Sample Volume (ml)

1

Reverse T3 (rT3) is rarely clinically indicated and is not available in NZ. It is sent overseas, which incurs additional cost and delays. rT3 must be approved by a Chemical pathologist before being sent away. Please email the request form to chemicalpathologist@adhb.govt.nz for approval.

Note that these tests will be automatically declined unless cleared by discussion with a chemical pathologist.
If a test is declined, the specimen will be held for a reasonable period (usually 3 weeks but dependant on the stability of the sample). Medical practitioners seeking approval for a declined test should email the on-call Chemical Pathologist ( chemicalpathologist@adhb.govt.nz ), giving the patient's name and NHI number and the clinical justification for the test. If unable to email, call the on-call Chemical Pathologist via Lablink (09-3078995) and identify yourself as a doctor.

For any queries - please contact Section Leader/Technical Specialist Automation.

Sendaway
Sample Stability
- 8 hours at room temperature
- Separate and freeze on arrival
- Store and transport frozen
- Minimum collection volume of 1mL

Send FROZEN to Australia
NSW Health Pathology
Level 2, Parkes Building
Prince of Wales Hospital
Barker St
Randwick NSW 2031
Australia

Ph: 00 61 1800 073 257

Contact Information