Name: T4, Total
Test Name: T4, Total
Health Link Test Code: T4
LIS Test Code: T4
CPT Code(s): 84436
Methodology: Chemiluminescent Immunoassay
Days Performed: Daily, 24 hours.
In-Lab Turnaround Time: 4 hours.
Stat In-Lab Turnaround Time: 1 hour.
Collection Container: Green cap with yellow ring (PST)
Also Acceptable: Green top, Red cap with yellow ring (SST), Red top
Collection Volume: 2 mL
Pediatric Collection Volume: 0.4 mL
24 hours on gel
Sample Analyzed: Plasma or serum
Testing Volume: 1 mL
Pediatric Testing Volume: 0.2 mL
Centrifuge. If a complete barrier has not formed, transfer cell-free plasma/serum to clear plastic vial. Refrigerate.
Transport specimen to the laboratory. Transport with coolant pack if coming from clinic location.
|12 years and up||4.9-11.7|
Interpretation Type: Reference Interval