Viscosity, Serum

Message

For Specimen Integrity during Extreme Weather see the “Lockbox Usage in Extreme Weather” document at the top of this page.

Test Code

VISCSR

Alias/See Also

918

CPT Codes
85810

Preferred Specimen

2 mL serum

Minimum Volume

1.2 mL

Instructions

Centrifuge serum samples within 1 hour of collection.

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

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 10, 2024

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.