Protein S Panel

Tube Type = Light Blue Top

Tube Type

(Includes: Free Protein S Antigen and Protein S Activity

Test ID LAB9685
EPIC Order PROTEIN S PANEL
CPT Code(s)

See individual tests: Protein S Activity and Free Protein S Antigen.
Group/Individual Test Group
Laboratory Special Coagulation
Tube Station 30
Specimen Routine: 3.0 mL blood/light blue sodium citrate tube; See Comments 
Stability
Unspun - 4 hrs
Room Temp - 4 hrs
Refrigerated - NO
Frozen - 6 months
Availability Routine: 2 runs/week: Monday and Thursday
Turnaround Time 3-5 Business Days
Internal Reference Testing & Outreach Specimen
Handling Instructions
Platelet Poor Plasma (double spun). Aliquot and freeze within
4 hours.
Comments Deliver immediately

Reviewed by J. Carr on January 14, 2026

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514