Test Code LAB129 Thyroid Stimulating Hormone (TSH)
Additional Codes
CPT Code: 84443
Performing Laboratory
TidalHealth Peninsula Regional - Core Laboratory: Chemistry
Specimen Requirements
Submit only 1 of the following specimens:
Plasma
Draw blood in a green-top (lithium heparin) tube. (Grossly hemolyzed specimen is not acceptable.) Spin down and send 2 mL of lithium heparin plasma.
Note: 1. Indicate plasma.
2. Label specimen appropriately (plasma).
Serum
Draw blood in a gold-top serum gel tube. (Grossly hemolyzed specimen is not acceptable.) Spin down and send 2 mL of serum.
Note: 1. Indicate serum.
2. Label specimen appropriately (serum).
Reference Values
0.270-4.200 uIU/mL
Methodology
Electrochemiluminescence immunoassay (ECLIA)