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EPIC CODE: LAB137 Triiodothyronine, Free

ADDITIONAL TEST CODE

Sunquest: FT3

REGIONAL HOSPITAL PERFORMING

UPH Methodist Hospital

Collect

One 6 mL Gold, >Red, or Green top tube.

Pediatric Requirements

0.2 mL serum at 2-8 C.

Storage/Transport Temperature

1 mL serum/plasma at 2-8°C.

Separate serum or plasma from cells ASAP or within 2 hours of collection

Stability (from collection to initiation)

After separation from cells:

Ambient (room temperature): 8 hours ; Refrigerated: 7 days; Frozen (-20o C) Stability: 3 months

Remarks

Separate serum from cells immediately after collection.

Days Performed

Sunday – Saturday

Methodology

Chemiluminescent Immunoassay Vista

Reference Interval

Age Value
1 day – 23 months 3.3 – 5.2 pg/mL
2 yrs – 12 yrs 3.3 – 4.9 pg/mL
13 yrs – 20 yrs 2.9 – 4.5 pg/mL
21 yrs – 999 yrs 2.2 – 4.0 pg/mL

2.2 – 4.0 pg/ml

CPT Codes

84481