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Thyroid-Stimulating Hormone-Sensitive (s-TSH), Plasma or Serum
Test Code1248
CPT Codes
84443
Preferred Specimen
Submit only 1 of the following specimens:
Plasma
Container/Tube: Green-top (heparin) tube(s)
Specimen Volume: 3 mL (minimum volume: 0.5 mL) of plasma
Note: 1. For thyrotropin (TRH) stimulation, order TSH level to be drawn before administration of TRH (baseline level) and 30- and 60-minutes after administration. 2. Indicate plasma. 3. Label specimen appropriately (plasma).
Serum
Container/Tube: Serum gel tube(s)
Specimen Volume: 3 mL (minimum volume: 0.5 mL) of serum
Note: 1. For thyrotropin (TRH) stimulation, order TSH level to be drawn before administration of TRH (baseline level) and 30- and 60-minutes after administration. 2. Indicate serum. 3. Label specimen appropriately (serum).
Plasma
Container/Tube: Green-top (heparin) tube(s)
Specimen Volume: 3 mL (minimum volume: 0.5 mL) of plasma
Note: 1. For thyrotropin (TRH) stimulation, order TSH level to be drawn before administration of TRH (baseline level) and 30- and 60-minutes after administration. 2. Indicate plasma. 3. Label specimen appropriately (plasma).
Serum
Container/Tube: Serum gel tube(s)
Specimen Volume: 3 mL (minimum volume: 0.5 mL) of serum
Note: 1. For thyrotropin (TRH) stimulation, order TSH level to be drawn before administration of TRH (baseline level) and 30- and 60-minutes after administration. 2. Indicate serum. 3. Label specimen appropriately (serum).
Minimum Volume
Pediatric volume: 0.5 mL
Transport Temperature
Refrigerate
Methodology
Immunoassay
Setup Schedule
Monday through Sunday
Reference Range
s-TSH
1-30 days: 0.520-16.000 µIU/mL
31 days-5 years: 0.460-8.100 µIU/mL
6 years-18 years: 0.360-6.000 µIU/mL
Adults: 0.358-3.740 µIU/mL
Performed By
CoxHealth
