Thyroxine, Free
Orderable EAP code:
LAB00153
Billable EAP Codes:
80002053 x 1
CPT Codes:
84439 x 1
Lab Section:
Core Lab
Turnaround Time:
Routine: 2 Hours
Urgent: 1 Hour
Test Schedule:
24 hours, 7 days a week.
Units:
ng/dL
Specimen Requirements:
4 ml blood in a GREEN top, lithium heparin tube or in a RED top tube.
Pediatric Specimen Requirements:
0.5 mL in a 1.0 mL GREEN top, lithium heparin tube or in a RED top tube.
Reference Range:
0.6 to 1.2 ng/dL
Synonyms:
Free T4