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HelpTest Code LAB127 T4 Free
Intended Use
Evaluation of suspected thyroid function disorders
Methodology
Immunoenzymatic assay, Chemiluminescence
Performing Laboratory
RCH-SPH-STH-LDH
Specimen Requirements
Preferred: Plasma (heparinized)
Container/Tube: Lt Green/Mint top (lithium heparin) tube
Acceptable: Serum
Container/Tube: Plain, Red-top or Gold, serum gel tube
Specimen Volume: 1.0 mL (minimum volume: 0.54 mL)
Collection Instructions: Forward promptly.
Specimen Stability
Ambient: 8 hours
Refrigerated: 48 hours
Frozen: -20 C > 48 hours
Day(s) Test Set Up
Monday through Sunday
Test Classification and CPT Coding
84439