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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
0.550 – 4.780 µIU/mL (Adult population)
Infants (0 - 23 months) 0.870– 6.150
Children (2 - 12 years) 0.670 – 4.160
Adolescents (13 - 20 years) 0.480 – 4.170
Performed By
CoxHealth
