Recirculation Study

Specimen Plasma from venous, arterial and systemic sites
Container Type 3 Green Top Tubes


Stability 7 days
Turnaround Time 1 day
Methodology Urease/GLDH
Reference Range ≤10%
Transport Temp Refrigerate 2°-8°C
Instructions Identify each tube with the venous (GREEN VENOUS), arterial (GREEN ARTERIAL) and systemic (GREEN SYSTEMIC) bar code labels. Refer to “Specimen Collection and Handling” section of this manual.
Analytes Venous BUN, Arterial BUN, Systemic BUN
Calculations % Recirculation
CPT Code 84520×3