Free Thyroxine (T4) Build info

Synonyms

• FREE THYROXINE (T4)
• FT4
• THYROID
• LAB127

Short Name

T4 FREE

Procedure Master Number

LAB127

Procedure ID

902

Clinical Info

Specimen Type

Blood

Container

Gold Top Tube

Collection Instructions

Container/Tube: Gold-top tube(s)
Specimen: 1 mL of serum

Transport Instructions

Refrigerate

Specimen Stability

5 Days Room Temperature
7 Days Refrigerated
30 Days Frozen

Methodology

Electrochemiluminescence Immunoassay (ECLIA)

Days Performed

Monday through Sunday, Continuously

Performing Laboratory

Northwell Health Laboratories

CPT

84439

PDM

5300445

Results