ADAMTS13 Activity


Sunquest Code:ADAMAT  
Epic Code:LAB6838Epic Name:ADAMTS13 Activity
Synonyms:VWF Cleaving Protease Activity
Methodology:Fret-based Kinetic Assay
Turnaround Time:Specimens are sent to the reference laboratory Mon-Fri; results are reported within 1-3 days.
Special Instructions:Send platelet-poor plasma for testing. See Specimen Collection and Processing for Special Coagulation Specimens Associated Link.
Associated Links:

Specimen Collection and Processing for Coagulation Specimens



Collection Instructions

Specimen:Blood
Optimal Volume:2.7 mL (in 3 mL tube) - filled to fill line on the tube
Minimum\Peds Volume:1.8 mL (in 2 mL tube) - filled to fill line on the tube
Container:Blue Na Citrate, 3.2% - fill to fill line on tube
Causes for Rejection:Over-filled or under-filled tubes. Hemolyzed or clotted specimens. EDTA plasma.


Processing and Shipping

Specimen Processing:See Special Coagulation processing instructions. Aliquot 0.5 mL, 0.2 mL minimum. Store in freezer.
Shipping Instructions:Ship on dry ice.
Stability:Up to 7 days at room temperature or refrigerated; indefinitely frozen (preferred).
Test Performed at or Referral Lab Lab Sendouts  (Versiti)
Referral Lab number:1298


Interpretive

Reference Range:ADAMTS13 Activity: Greater than or equal to 67%
Use:Diagnosis of congenital or idiopathic thrombotic thrombocytopenic purpura (TTP).


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