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Lab Test Dictionary

ADAMTS13 Activity with Reflex to Inhibitor (14532)

Methodology

Immunoassay (IA)


Synonyms

VWF Cleaving Protease (vWF-CP); vWF Protease Activity (ADAMTS-13); VWF Cleaving Protease (vWF-CP) (ADAMTS-13); von Willebrand Factor Protease Activity (ADAMTS-13)

Specimen Type

Plasma

Performing Lab

Quest Diagnostics San Juan Capistrano


Epic ID

LAB08080

Lab Test Days

Sunday-Thursday

Standard TAT

2-4 Days


Collection Information

Specimen Required

(one) 1.8 mL or 2.7 mL Blood

Container Type

Light Blue (Sodium Citrate)


Processing Information - Lab Use Only

Transport Temperature

Frozen-Only

Specimen Stability

Room Temp: Unacceptable; Refrigerated: Unacceptable; Frozen: 6 Months

Rejection Criteria

EDTA Plasma

Test Volume Required

1 mL Platelet-Poor Plasma

Minimum Test Volume

0.5 mL Platelet-Poor Plasma

Processing Instructions

Platelet Poor Plasma: Centrifuge light blue-top tube 15 minutes at approx. 1500 g within 60 minutes of collection. Using a plastic pipette, remove plasma, taking care to avoid the WBC/platelet buffy layer and place into a plastic vial. Centrifuge a second time and transfer platelet-poor plasma into a new plastic vial. Plasma must be free of platelets (<10,000/mcl). Freeze immediately and send frozen.


CPT Codes

85397; 85335


Revised

05-09-18

Initials

SL