Free Thyroxine (T4) by Dialysis/Mass Spectrometry
15 days
Direct dialysis mass spectrometry, high-pressure liquid chromatography/mass spectrometry (HPLC/MS)
Accredited Laboratory Partner
Contact Technical Support
Aurate measurement of free T4 hormone.
Serum or Plasma
1 mL
Red-top tube or lavender-top (EDTA) tube
No special preparation is required for this test. You may eat, drink, and take your medications as normal, unless instructed otherwise by your healthcare provider.
This test does not require any special collection or pre-analytical handling. Follow routine specimen collection protocols.
| Temperature | Period |
|---|---|
| Refrigerated | 5 days |
| Frozen | 453 days |