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Geisinger Medical Laboratories Test Catalog
PROLACTIN, TOTAL AND MONOMERIC |
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Geisinger Epic Procedure Code: LAB1036
Geisinger Epic ID: 52069
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SPECIMEN COLLECTION |
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Specimen type: |
Serum | |
Preferred collection container: |
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Alternate Collection Container: |
6 mL red-top (plain, non-serum separator) tube
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Specimen required: |
1 mL serum; minimum 0.4 mL | |
| SPECIMEN PROCESSING |
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Specimen processing instructions: |
Allow to clot. Centrifuge and aliquot. | |
Transport temperature: |
Room temperature. | |
Specimen stability: |
Room temperature: 7 days. Refrigerated: 7 days. Frozen: 6 months. | |
TEST DETAILS |
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CPT code(s): |
84146 x2 | |
| 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: |
Total Prolactin, Free Prolactin | |
Methodology: |
PEG Precipitation Immunoassay |
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Synonyms: |
Prolac Total, Quest test code 16122, Macroprolactin,Big-Big Prolactin
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Clinical significance: |
For some patients the level of Prolactin measured by immunoassay may be inaccurate with respect to the level of monomeric, biologically active Prolactin. The Macroprolactin by PEG Precipitation test can help to identify if a patient sample has elevated Prolactin due to mostly inactive protein-bound Prolactin (Macroprolactin). | |