Description
See Also Thyroxine (T4), Free, Serum
Indications
Sample Type, Quantity & Conditions
1 ml Serum 1 ml Li, Na, NH4+-Heparin, K3-EDTA, Sodium Citrate, or Sodium Fluoride/Potassium Oxalate Plasma Stability: 7 Days at 2-8 °C 1 Month at -20 °C
Special Precautions
If not assayed within 24 Hrs of collection, freezing of sample is recommended.
Normal Range
66-181 nmol/L
