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Mint Green Top (Lithium Heparin Gel)
Specimen Requirements
Preferred:
Container/Tube: Mint Green Top (Lithium Heparin Gel)
Minimum Volume: 1.0 mL
Collection Instructions: Centrifuge within 2 hours
Also Acceptable:
Container/Tube: Gold Top (SST-Gel)
Specimen Stability
Ambient: 8 hours
Refrigerate: 10 days
Reference Range
BVH Lab:
0-7 Days: 8.2-21.5 ug/dL
8 Days – 3 months: 7.2-16.6 ug/dL
4 months – 2 years: 5.5-14.5 ug/dL
3+ yrs: 5.0-11.5 ug/dL
Methodology
Chemiluminescent Immunoassay
CPT
84436
Test Alias
Thyroxine