Thyroid Function Tests (Blood) Test

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Alternate Names	TFT
Test Code	TFT
Testing Laboratory	Biochemistry
Specimen Type	Blood
Container Type	Serum tube (Red Cap w. Yellow Insert)
Medicare Rebate	Yes
Out of Pocket Costs	None
Ordering Information	NOTE: For non-hospital requests, a TSH is the only test performed when a TFT is requested. In the event that the TSH is greater than 5.0 mIU/L, a FT4 (and FT3 if TSH low) will be automatically added to the request. If FT3 and/or FT4 are required up front, they must be specifically requested and be accompanied by clinical notes which satisfy one of the MBS requirements: thyroid disease is being monitored investigation of dementia psychiatric illness; amenorrhoea infertility pituitary dysfunction sick eurythoid syndrome patient is on medication/drugs that interfere with thyroid hormone metabolism or function
Collection Instructions	Can be combined with other Biochemistry tests requiring same tube type.
Transport Instructions	Transport ambient at room temperature
Storage Instructions	Store refrigerated at 4°C
Testing Frequency	Daily
Min Test Volume	2mL
Add On Test Suitability	This test cannot be added after 72 hours of collection.