Protein C, Functional (LABCORP)

Test Code

99901000421

Alias/See Also

LAB489: Protein C Activity
LAB7322: Hypercoaguable Profile | LABCORP EAP: 117705

CPT Codes
85303x1

Preferred Specimen

LABCORP LAB: LT BLUE TOP-CITRATE (Frozen) Min Vol: 1

Instructions

Preferred specimen: Plasma collected in Light blue top tube (sodium citrate)

Transport Temperature

NOTE: Double-centrifuged specimen is critical for accurate results as platelet contamination may cause spurious results. Specimen: Plasma, frozen Volume: 2 mL Minimum Volume: 1 mL (Note: This volume does not allow for repeat testing.) Transport Container: Plastic vial containing plasma from Light Blue top tube Specimen Collection: 1. Centrifuge, transfer all plasma into a plastic vial, and centrifuge plasma again. 2. Aliquot plasma into a plastic vial leaving 0.25 mL in the bottom of centrifuged vial. 3. Freeze plasma immediately (no longer than 4 hours after collection) at -20 degrees C or, ideally, at < or =-40 degrees Transport Temperature: Frozen Turn-around-time: 2-3 days Cause for Rejection: Severe hemolysis; improper labeling; clotted specimen; specimen diluted with IV fluids; samples thawed in transit; improper sample type; sample out of stability.

Report Available

LABCORP LAB
STAT: 4320 min
Routine: 4320 min
Extended TAT: No TAT min
Timed: 4320 min
Life or Death: 4320 min

Last Updated: March 6, 2023

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.