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Geisinger Medical Laboratories Test Catalog
VISCOSITY |
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ORDERING INFORMATION: |
Geisinger Epic Procedure Code: LAB3252 Geisinger Epic ID: 7233 | |
SPECIMEN COLLECTION |
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Specimen type: |
Serum. | |
Preferred collection container: |
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Specimen required: |
2 mL aliquot of serum; minimum 1.5 mL. | |
| SPECIMEN PROCESSING |
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Specimen processing instructions: |
Incubate at 37°C for 30 minutes. Centrifuge immediately after incubation at designated time and speed to obtain platelet-poor serum (<10,000/µL). Do not freeze sample. | |
Transport temperature: |
Room temperature. Do not freeze sample. | |
Specimen stability: |
Stable 24 hours at 20°C. | |
Rejection criteria: |
Stability limits exceeded. | |
TEST DETAILS |
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Reference interval: |
1.4 - 1.8. | |
Additional information: |
Turnaround Times: Routine - 4 hours, STAT - 1 Hours, Extended TAT - 3 Days, Timed - 60 minutes, Pending Discharge - 45 minutes. | |
CPT code(s): |
85810 | |
| 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: |
Ratio of serum to water. | |
Methodology: |
Capillary viscometer |
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Synonyms: |
Serum Viscosity, VISC
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Clinical significance: |
Increased serum viscosity is most commonly seen in patients with multiple myeloma and Waldenstrom macroglobulinemia. Capillary occlusion and stasis hypoxia may be observed in patients with increased serum viscosity. | |
Doctoral Director(s:) |
Mary Dhesi MD | |
| Review Date: | 01/03/2023 | |