Home
HelpOrder Code FT4 T4 (Thyroxine) Free
Additional Codes
Epic Order ID LAB127
Sub activity Type
Chemistry
Collection tube (preferred)
Green Li PST
Specimen Type
Plasma/Serum
Minimum Volume
0.6 ml
Stability (days)
48 hours at 2-8°C
8 hours at room temp (20-23°C)
7 days at 2-8° C (Oelwein)
Transport temperature
Refrigerated
Transport Container
Plasma Separator Tube(PST) or Serum Separator tube (SST)
Rejection Criteria
Anticoagulants other than heparin
Acceptable collection tube
SST
Clinical Significance
For diagnosis of hypothyroidism and hyperthyroidism.
Reference Range
0.76 - 1.46 ng/dL