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Geisinger Medical Laboratories Test Catalog
CORTISOL, FREE, LC/MS, SERUM |
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ORDERING INFORMATION: |
Geisinger Epic Procedure Code: LAB1109 Geisinger Epic ID: 52361 | |
SPECIMEN COLLECTION |
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Specimen type: |
Serum (preferred) or plasma | |
Preferred collection container: |
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Alternate Collection Container: |
3 mL lavender-top (K2 EDTA) tube
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Specimen required: |
2 mL serum; minimum 0.7 mL | |
Special notes: |
Do not collect in tube containing gel. | |
| SPECIMEN PROCESSING |
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Specimen processing instructions: |
Centrifuge and aliquot. | |
Transport temperature: |
Refrigerated (cold packs). | |
Specimen stability: |
Room temperature: 48 hours. Refrigerated: 7 days. Frozen: 2 years. | |
Rejection criteria: |
Gross hemolysis • Serum Separator Tube (SST®) | |
TEST DETAILS |
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CPT code(s): |
82530 | |
| 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. | ||
Methodology: |
Chromatography/Mass Spectrometry |
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Synonyms: |
Quest test code 36423, Free CortSer
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Clinical significance: |
Free cortisol is useful in the detection of patients with Cushing's syndrome for whom free cortisol concentrations are elevated. | |