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HelpTSH with Reflex Total T4
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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: 48 hours
Frozen: aliquot for longer storage
Reference Range
BVH Lab:
0-1 Day: 2.43-24.03 uIU/mL
1 days: 1.9 17.58 uIU/mL
2 days: 1.4 13.1 uIU/mL
3 days: 0.94- 9.65 uIU/mL
4 days – 1 wk: 0.6 – 6.82 uIU/mL
1 wk – 5yr: 0.57- 5.58 uIU/mL
5 yr – 8 yr: 0.56 5.41 uIU/mL
8 yr 12 yr: 0.55- 5.31 uIU/mL
12 yr – 15 yr: 0.53 – 5.16 uIU/mL
15yr – 18 yr: 0.52 – 5.05 uIU/mL
18 yr +: 0.45 – 5.33 uIU/mL
Methodology
Chemiluminescent Immunoassay
CPT
84443