CPT 4 Code: 85810

Test Order Mnemonic: VISCOSITY

Lab: Clinical Chemistry

Request Form: Clinical Immunology

Collection: Blood is collected by routine venipuncture, kept at body temperature, and tube delivered to the laboratory by hand within 30 minutes of collection.

Storage Instructions: Sample must be kept at body temperature (37°C); deliver to the laboratory within 30 minutes of collection. Lab must be notified prior to collection.

Causes for Rejection: Lipemia; improper sample collection, handling, and processing. Hemolysis should be avoided.

Availability: Samples are received 24 hours per day at Sample Management, Room 5.136 McCullough.

Turnaround Time: Routine: 24 hours; performed Monday-Friday

Special Instructions: Sample must be kept at body temperature and delivered within 30 minutes of collection directly to the Laboratory Medicine, Sample Management, Room 5.136 McCullough. Please notify Lab.

Specimen: Blood

Volume: 7 mL blood

Minimum Volume: 5 mL blood

Container: Preferred: SST (gel barrier) tube; Acceptable: Red-topped tube

Reference Ranges: 1.6 - 2.0 N.Rel.

Test Method: Viscometer

Reviewed/revised April 2007 by P. Harris