Viscosity, Serum

Message

Centrifuge serum samples within 1 hour of collection.

Test Code

VISCS

Alias/See Also

LAB765

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: 30 days

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: Same day

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.

Performing Laboratory
Quest Diagnostics Nichols Institute 14225 Newbrook Drive Chantilly, VA 20153

Last Updated: June 20, 2021

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.