Antithrombin Activity (MAYO)

Test Code

1230400061

Alias/See Also

LAB311: Antithrombin III
LAB7322: Hypercoaguable Profile | MAYO EAP: ATTF

CPT Codes
85300x1

Preferred Specimen

MAYO LAB: LT BLUE TOP-CITRATE (Frozen) Min Vol: .5

Instructions

Adults: 1 Na Citrate tube (2.7 mL Light blue tube)* *Pediatric minimum: 1 Na Citrate tube (2.7 mL Light blue tube)*

Transport Temperature

See Coagulation Studies in Special Instructions. Specimen Type: Platelet-poor plasma Collection Container/Tube: Light-blue top (citrate) Submission Container/Tube: Plastic vial Specimen Volume: 1 mL Collection Instructions: 1. Spin down, remove plasma, and spin plasma again. 2. Freeze specimen immediately at < or =-40 degrees C, if possible. Additional Information: 1. Double-centrifuged specimen is critical for accurate results as platelet contamination may cause spurious results. 2. Each coagulation assay requested should have its own vial. 3. Heparin treatment may lower plasma antithrombin. 4. Coagulation testing is highly complex, often requiring the performance of multiple assays and correlation with clinical information. For that reason, we suggest ordering THRMP / Thrombophilia Profile.

Report Available

MAYO LAB
STAT: 5760 min
Routine: 5760 min
Extended TAT: No TAT min
Timed: 5760 min
Life or Death: 5760 min

Last Updated: March 6, 2023

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.