Yale New Haven Hospital

Department of Laboratory Medicine
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Viscosity, serum

Lab Section: 



Lab Location: 

Main Lab

Test ID: 




Quantitative Cone-Plate Viscometer


Monday, Wednesday, Friday


3 days

Specimen Requirements: 

Collection: 10.0 mL Blood in a Red Top Tube - Warmed.
Pediatric volume: 4 mL.
Transport: Warm Water (37C) - Inpatient only.
Handling: Immediately place red top tube in WARM WATER (body temperature), NOT HOT WATER. Deliver to lab immediately.
Unacceptable conditions: Samples collected in Gel Barrier Tubes
Stability: After separation from cells: Ambient: 24 hours: Refrigerated: 4 days; Frozen: 1 month



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

Reference Interval: 

1.1 - 1.8 cP

CPT Code(s): 


Last Changed: 

10/09/2016 22:07:07

Last Reviewed: 

8/18/2017 2:16:57 PM