Methodology
Immunoturbidimetric
Synonyms
Protein S Ag, Free
Specimen Type
Plasma
Performing Lab
Quest Diagnostics San Juan Capistrano
Epic ID
LAB4316
Lab Test Days
Tuesday and Friday
Standard TAT
1-5 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
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 15 minutes at 1500 g within one hour 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(s). Freeze immediatley and send frozen.
CPT Codes
85306
Revised
06-14-20
Initials
SL