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Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog
FREE T4, DIRECT DIALYSIS |
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ORDERING INFORMATION: |
Geisinger Epic Procedure Code: LAB2311 Geisinger Epic ID: 44051 | |
SPECIMEN COLLECTION |
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Specimen type: |
Serum | |
Preferred collection container: |
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Specimen required: |
1 mL aliquot of serum; minimum 0.8 mL. | |
| SPECIMEN PROCESSING |
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Specimen processing instructions: |
Allow to clot. Centrifuge and transfer serum specimens to clean, plastic, screw-capped vial(s). Transport on refrigerant coolant. | |
Transport temperature: |
Refrigerated (preferred) or frozen. | |
Specimen stability: |
Room Temperature: 4 days. Refrigerated: 14 days. Frozen: 35 days (-20°C). | |
Rejection criteria: |
Stability limits exceeded. | |
TEST DETAILS |
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CPT code(s): |
84439 | |
| Note: The billing party has sole responsibility for CPT coding. Any questions regarding coding should be directed to the payer being billed. The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only. | ||
Test includes: |
Free T4 by Equilibrium Dialysis Including Total T4 | |
Methodology: |
Equilibrium Dialysis |
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Synonyms: |
Free T4 by Equilibrium Dialysis Quest test code 35167 FT4
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