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Test Code RMCT3TOTAL T3 Total*

Important Note

*This test is orderable in Cerner as T3 Total

For the quantitative determination of triiodothyronine (T3) in serum.

T3 Total is available as a separate order and may also be a reflex test in the Thyroid Cascade order.

Methodology

Direct Chemiluminescent Competitive Immunoassay

Performing Laboratory

Rutland Regional Medical Center Laboratory

Specimen Requirements

Specimen Type: Serum  

Container/Tube: SST Gold Top (Preferred) or Red Top (Acceptable)

Specimen Volume: Full tube

Specimen Minimum Volume: 0.5 mL serum Collection Instructions: If pre-processing before sending to the Lab: Allow to clot 30 minutes, (but not longer than 2 hours), centrifuge, refrigerate and return to the Lab.

Specimen Transport Temperature

Room temperature up to 8 hours

Refrigerated 48 hours

Only 1 freeze/thaw cycle allowed

Reference Values

Normal: 60 – 181 ng/dL

Reportable range: 10 – 800 ng/dL

Day(s) Performed

Daily

Analytical Time:

1 day

Available Stat

Test Coding

CPT: 84480

LOINC: 3053-6

Order Code: RMCT3TOTAL

Result Code: RMCL801924

Result Name: T3 Total (Centaur)