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HelpTest Code TSHR Thyroid Stimulating Hormone with Reflex to Free T4 and Free T3
Performing Location
Specimen Collection Information
| Specimen | Min. Test Volume | Collection Container | Special Handling |
|---|---|---|---|
| Blood | 0.1 mL | Light Green (lith. heparin) top Gold top Marble Red top |
Reference Ranges & Critical Values
| Assay | Gender | Age Range | Normal Range | Critical Values | Units |
|---|---|---|---|---|---|
| TSH | ALL | 0 Minutes – 150 Years | 0.27 - 4.20 | > 100 | uIU/mL |
| T4FREE | ALL | 0 Minutes – 150 Years | 0.9 - 1.7 | ng/dL | |
| T3FREE | ALL | 0 Minutes – 150 Years | 2.0 - 4.4 | pg/mL |
Specimen Stability
7 days at 2-8°C
Day(s) Performed
Monday - Sunday
LOINC
3016-3 - TSH
(3024-7 - T4 Free reflex)
(3051-0 - T3 Free reflex)
CPT
84443 - TSH
+ reflex Free T4 - 84439 as appropriate
+ reflex T3 Free - 84481 as appropriate