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Geisinger Medical Laboratories Test Catalog
TESTOSTERONE, FREE (DIALYSIS) AND TOTAL, MS |
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Geisinger Epic Procedure Code: LAB3137
Geisinger Epic ID: 34071
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SPECIMEN COLLECTION |
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Specimen type: |
Serum (preferred) or plasma. | |
Preferred collection container: |
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Alternate Collection Container: |
4 mL green/green-top (sodium heparin) tube
3 mL green/black top lithium heparin tube
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Specimen required: |
1.8 mL aliquot serum or plasma; minimum 0.9 mL. | |
Special notes: |
Serum separator tubes are unacceptable. | |
| SPECIMEN PROCESSING |
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Specimen processing instructions: |
Allow serum to clot (10-15 minutes) at room temperature. Centrifuge and separate the serum from the cells. | |
Transport temperature: |
Refrigerated. | |
Specimen stability: |
Room temperature: 1 week. Refrigerated: 21 days. Frozen: 2 years (-20ºC). | |
Rejection criteria: |
Stability limits exceeded. Serum separator tubes unacceptable. Gross hemolysis. Gross lipemia. | |
TEST DETAILS |
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CPT code(s): |
84402, 84403 | |
| 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: |
Testosterone, Total, MS and Testosterone, Free (Dialysis). | |
Methodology: |
Calculation Equilibrium Dialysis Chromatography/Mass Spectrometry |
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Synonyms: |
Testosterone, Free and Total, MS Quest test code 36170 Free testosterone by equilibrium dialysis TESTEQ
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Clinical significance: |
Test is helpful in accessing testicular function in males and in managing hirsuitism and virilization in females. | |