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HelpTest Code LAB4207 THYROID STIMULATING HORMONE (TSH)
Additional Codes
TSH and Total T4 - LAB4033
TSH and Free T4 - LAB4031
Specimen Type
Preferred Sample: Lithium Heparin Plasma (Green/Mint Top)
Alternative Sample: Serum (SST, Gold, Tiger, Red Top NO GEL)
Specimen Volume
1 mL
Minimum Volume
0.5 mL
Microtainer - 0.2 mL
Turnaround Time
STAT: 1 hour
Routine: 4 hours
Test Schedule
Daily
Sample Stability
Refrigerated: 7 Days
Frozen: 6 Months
Method
immunoassay
Reference Ranges
TSH (Reflex) µIU/mL
4 Days to 6 Months: 0.73 - 4.77
6 Months to 14 Years: 0.7 - 4.17
14 Years to 19 Years: 0.47 - 3.41
19 Years to adult: 0.35 - 4.94
Reporting Limit
Measuring Range: 0.0083-100.0 µIU/mL
Reporting Range: 0.0083-500.0 µIU/mL (1:5 dilution)
Synonyms
THYROID STIMULATING HORMONE, LAB4207, THIRD-GENERATION TSH, THYROTROPIN
CPT Codes
84443