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Test Code T4T T4, Total, Serum

Performing Laboratory

Mary Washington Healthcare-Department of Pathology and Laboratory Medicine-Chemistry

Specimen Requirements



Container/Tube:  Plain, red-top tube(s) or serum gel tube(s)

Volume:  1 mL of serum

Transport Temperature:  Refrigerate

Collection Instructions:

Note:  Label specimen appropriately (serum). Turbidity may affect test results.


Reference Values

5.00-12.50 µg/dL

Day(s) Test Set Up

Monday through Sunday