Euglobulin Clot Lysis Time

*Take to processing after collection to be spun down and froze within 30 minutes.

Test Code

Alias/See Also

CPT Codes

Preferred Specimen
2 mL frozen plasma collected in a 3.2% sodium citrate (light blue-top) tube

Minimum Volume
1 mL

Specimen collection container is blue-top (3.2% sodium citrate) tube. To avoid release of plasminogen activator, do not massage vein vigorously, pump fist excessively or leave tourniquet in place for a prolonged period. Centrifuge within 30 minutes after collection to get platelet-poor plasma and freeze on dry ice.
Ship specimens frozen on dry ice. Keep samples in a -60° to -80° C freezer if they cannot be shipped promptly. Prohibit exercise prior to drawing sample.

Transport Container
Transport tube

Transport Temperature

Specimen Stability
Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 21 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Lipemia • Icteric • Received room temperature • Received refrigerated

Clot Dissolution

Setup Schedule

Report Available
3 days

Reference Range
>60 min

Clinical Significance
Euglobulin clot lysis time (ECLT) provides an overall assessment of the fibrinolysis system by measuring the time for an in vitro clot to dissolve in the absence of the normal plasmin inhibitors. ECLT is useful in assessing the fibrinolytic system and monitoring patients on urokinase or streptokinase fibrinolytic therapy.

Performing Laboratory
Quest Diagnostics Nichols Institute-San Juan Capistrano, CA
33608 Ortega Highway
San Juan Capistrano, CA 92675-2042

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.