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Test Name:ADAMTS13 activity and inhibitor
Test Number:994
Collect:2.0 mL Na Citrate plasma - lt blue
Container:Mayo Screw Cap Transfer Vial
Processing:Double spin, separate and freeze
Transport/Stability:Frozen - 14 days
Alternate Names:Von Willebrand Cleaving Protease
Adamts 13 inhibitor
Adamts 13 Activity
Metalloprotease
MSO
LAB994
Performing Lab:Mayo Clinic Laboratories (ADM13); R
Days Set Up:Mo - Su (varies)
Expected TAT:4 - 5 days
Ref. Ranges:Activity Assay: ≥ 70%
Inhibitor Screen: Negative
Bethesda Titer: <0.4 BU
Collection/
Processing Details:
Collection Instructions:
1. Specimen must be drawn prior to replacement therapy.
2. Spin down, remove plasma, and spin plasma again.
3. Freeze specimens immediately at ≤ - 40 °C, if possible, placing 1.0 mL plasma in two separate vials (1.0 mL in each)
Method:Activity: Fluorescence Resonance Energy Transfer (FRET )
Screen and Titer: Mixing Studies
CPT Codes:85397 - Activity
85335 - Inhibitor Screen (if appropriate)
85335 -Titer (if appropriate)
Additional Information: Proper Na Citrate Tube Filling
Date Created:07/19/2005
Revised Date:11/08/2018