Viscosity, Serum

Message

This test is currently only available in BHS CPRS. If you are a Bedford provider and wish to see this test offered in Bedford CPRS- please contact the Bedford Laboratory.

Testing performed at Quest Diagnostics.

Test Code

VISCOSITY(O)

CPT Codes
85810

Preferred Specimen

2 mL serum

Minimum Volume

1.2 mL

Instructions

Centrifuge serum samples within 1 hour of collection. Transfer serum to clean, plastic, screw-capped vial.

Transport Container

Plastic screw-cap vial

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 7 days
Refrigerated: 14 days
Frozen: 6 months

Methodology
Kinematic Viscometer

FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Setup Schedule

Set up: Mon-Sat; Report available: 1-3 days

Reference Range

1.5-1.9 relative to H2O

Clinical Significance

High serum viscosity may be most commonly observed in patients with Waldenström's macroglobulinemia and multiple myeloma. Patients with high viscosity may have capillary occlusion, stasis hypoxia, and acidosis.

Last Updated: September 24, 2014

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.