Test ID: T3
CPT code: 84480
LOINC: 3053-6
Specimen Type: PST
Frequency: Setup: daily; TAT <24 hrs
Instructions: >0.3mL plasma or serum from red or green top. Gel or nongel ok.
Text: Second order test in evaluation of patients with suspected
hyperthyroidism.
Methodology: CHEMILUMINESCENCE