Free T4 Dialysis FT4DIAL

Synonyms

Allscripts (AEHR) Order Name

Free Thyroxine by Equilibrium Dialysis

Sunrise Clinical Manager (SCM) Order Name

Free Thyroxine by Equilibrium Dialysis

EPIC Order Name

Free Thyroxine by Equilibrium Dialysis

Clinical Info

Specimen Type

Blood

Container

Red Top Tube

Collection Instructions

Container/Tube:  Gold-top tube(s) or Red-to tube(s)
Specimen:  1 mL of serum ( 0.5 mL min)
Transport Temperature:  Freeze
-

Transport Instructions

Freeze

Specimen Stability

Methodology

Direct dialysis mass spectrometry; high-pressure liquid chromatography/mass spectrometry (HPLC/MS)
 

Days Performed

Tuesday, Friday

Performing Laboratory

Labcorp-Esoterix

CPT

84439

PDM

5910668

Result Interpretation

 

Age	Range ng/dL
Premature (0-4 wk)	0.86-4.46
Newborn (0-2 wk)	0.84-4.97
Newborn (2 wk to 12 mo)	0.81-2.12
1-11 y	0.65-1.9
Pubertal children and adults	0.8-1.7
Pregnant Females
First trimester (0-13.3 wk)	0.65-1.4
Second trimester (13.4-26.6 wk)	0.5-1.3
Third trimester (>26.6 wk)	0.5-1.1

 

Forms