Antithrombin III ActivityMain Content
Test code: 216
CPT code(s): 85301
Clinical Significance: Aids in the detection of hypercoagulable states associated with venous thrombotic episodes. May be useful in patients who apprear to be hyporeponsive to heparin.
Includes: Antithrombin III Activity
Alternative Name(s): Antithrombin III Functional; AT-3 Activity; AT3
Supply: 38445 Light Blue 4.5mL 3.2% SODIUM CITRATE
A completely filled tube is necessary because the correct ratio of blood to citrate is critical (9:1). Mix by gentle inversion 3-4 times.
Preferred Specimen: Platelet Poor 3.2% Sodium Citrate-antigcoagulated Plasma
Preferred Volume: 1mL
Instructions: A completely filled tube is necessary because the correct ratio of blood to citrate is critical (9:1). Mix by gentle inversion 3-4 times. Centrifuge to separate plasma from cells. Remove plasma immediately and freeze
Special Instructions: DO NOT REFREEZE SAMPLES
Transport Container: Pour off Tube
Transport Temperature: Frozen
Specimen Stability: Frozen: 1 week
- Short Draws
- Clotted Samples
For additional supply or collection device information, please contact DLO's Customer Service at (800) 891-2917, option 2.
The CPT codes provided 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.