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Lab Test Dictionary

Protein C, Activity (1777)

Methodology

Clotting Assay

Synonyms

Protein C Chromogenic; Protein C Functional; Functional Protein C

Specimen Type

Plasma

Performing Lab

Quest Diagnostics San Juan Capistrano

Epic ID

LAB01039

Lab Test Days

Sunday-Friday

Standard TAT

2-3 Days

Collection Information

Specimen Required

(one)1.8 mL or (one) 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=1 Year

Rejection Criteria

Hemolysis; Received thawed; Received room temp; Received refrigerated

Test Volume Required

1 mL Platelet-Poor Plasma

Minimum Test Volume

0.5 mL Platelet-Poor Plasma

Processing Instructions

Centrifuge light blue-top tube for 15 minutes at approximately 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.