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ADAMTS13 Evaluation

Order Code: 1295 Get Requisition Form
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Test Information
ADAMTS13 Evaluation is a reflexive testing algorithm for evaluation of TTP. Activity is always performed. If result is <= 30%, the inhibitor assay (1297) is performed. If inhibitor result is <= 0.7 Inhibitor Units, the antibody assay (1299) is performed
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Also Known As
  • ADAMTS13
  • ADAMTS13 Activity
  • ADAMTS13 Inhibitor
  • VWF Cleaving Protease
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Disease State
Thrombotic Thrombocytopenic Purpura
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Test Type
Functional/Serologic Test
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Sample Notes
Citrated Plasma (light blue top), serum (red tube)
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Requested Volume
Three 0.5 ml aliquots
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Minimum / Pediatric Volume
Two 0.4 ml aliquots
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Shipping Information
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CPT Codes
  • 85397
  • 85335 (if inhibitor is performed)
  • 83520 (if antibody is performed)
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See Individual Tests
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Turnaround Time
Activity: 1-3 days; Inhibitor: 2-4 days; Antibody: 7 days
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New York State Approval
For panels or algorithms, refer to each individual component assay for approval status
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DEX Z-Code™
Diagnostic Laboratories
Diagnostic laboratory services including HLA testing, donor testing, immunohematology reference lab testing, hematology testing and more.
Hematology Testing
Versiti provides von Willebrand factor tests, aHUS diagnosis, hemophilia lab tests and other laboratory diagnosis of bleeding and clotting disorders.
Our Experts
Research investigators, postdoctoral fellows and laboratory staff at Versiti Blood Research Institute and Diagnostic Laboratories.
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