Collection:

T4 >

TEST	:	T4 (ECLIA)
OTHER TEST REQUEST NAME	:	• Thyroxine • Total T4
TEST COMPOSITION	:	Not applicable
INTENDED USE	:	The determination of T4 can be utilized for the detection of primary and secondary hypothyroidism and for monitoring of TSH-supression therapy.
METHODOLOGY	:	Electrochemiluminescence Immunoassay (ECLIA)
LABORATORY SECTION	:	Immunology
SPECIAL INSTRUCTIONS/PATIENT PREPARATIONS	:	• Samples should not be taken from patients receiving therapy with high biotin doses (i.e. > 5 mg/day) until at least 8 hours following the last biotin administration. • Patients treated with lipid-lowering agents (D-T4) should be discontinued 4-6 weeks of therapy prior to collection (please consult your doctor before following this preparation).
COLLECTION/SAMPLE CONTAINER	:	Red or Gold tube