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Lab Test Dictionary

Protein C Antigen (4948)

Methodology

Enzyme Immunoassay (EIA)


Synonyms

PC Antigen; Antigen, Protein C; Protein C

Specimen Type

Plasma

Performing Lab

Quest Diagnostics San Juan Capistrano


Epic ID

LAB01040

Lab Test Days

Daily

Standard TAT

1-4 Days


Collection Information

Specimen Required

(one) 1.8 mL or (one) 2.7 mL Blood

Container Type

Light Blue (Sodium Citrate)

Collection Instructions

Please submit a separate, frozen vial for each special coagulation assay ordered. Draw blood in a light blue-top tube containing 3.2% sodium citrate, mix gently by inverting 3-4 times.


Processing Information - Lab Use Only

Transport Temperature

Frozen-Only

Specimen Stability

Room Temp: Unacceptable; Refrigerated: Unacceptable; Frozen: 30 Days

Rejection Criteria

Received room temperature; Received refrigerated; Gross hemolysis

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 immediately and transport frozen.


CPT Codes

85302


Revised

5/29/24

Initials

SA