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Test Code FRT4 T4, Free

Important Note

Biotin, Vitamin B7, may interfere with this assay. If you obtain results that appear to be erroneous, and your patient is taking biotin supplements, we recommend repeating the test after the patient has stopped taking Biotin for a minimum of eight hours.

Clinical Indications

N/A

Additional Test Codes

Epic Order Name: Free T4 (Free Thyroxine) Only
Sunquest Order Code: FRT4
Px Order Code: LAB2242

Specimen Collection Type

Preferred: Mint
Acceptable: Gold

Minimum Collection Volume

1 mL

Reference Range

0.6 – 1.6 ng/dL

Critical Value

N/A

Interpretation

N/A

Rejection Criteria

N/A

Specimen Availability for Add-on Testing

2 Days

Specimen Stability

2 Days Refrigerated

Day(s) Performed

Monday through Sunday

Performing Lab- Department

TUKHS-BH-Chemistry

CPT Code

84439

LOINC Code

3024-7

Test Alias

N/A

Additional Information / Notes

N/A