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HelpTest Code TSHRT4 TSH with reflexive Free T4
Additional Codes
| Hospital Ordering Code |
|---|
| LAB2754 TSH with T4 reflexive |
Specimen Requirements
Submit only 1 of the following specimens:
Specimen Type: Plasma
Container/Tube: Green top (lithium heparin)
Specimen Volume: 0.5 mL
Additional Information: Label specimen appropriately (plasma).
Specimen Type: Serum
Container/Tube: Serum gel
Specimen Volume: 0.5 mL
Additional Information: Label specimen appropriately (serum).
Performing Laboratory
Unity Point-Sioux City-Chemistry
CPT
84443 TSH
84439 T4 Free (if reflexes)
Methodology
Electrochemiluminescence
Specimen Transport Temperature
Ambient Stability:
8 days
Refrigerated Stability:
14 days
Frozen Stability:
24 months. ***Freeze only once***
Performance
Daily