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Available Tests

  • Protein S Activity

Protein S Activity

Light Blue Top Tube

Tube Type

Test ID   LAB491
CPT Code(s)   85306
Group/Individual Test   Individual
Laboratory   Special Coagulation
Tube Station   30
Specimen Routine: 3.0 mL blood/1 light blue top tube;  see important Comments
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 Handling Instructions Platelet poor plasma. Aliquot and freeze within 4 hours.
Reference Range Normal: 64-147% of Normal
Comments Deliver Immediately
Heparin >1U/mL or Coumadin Interferes with Assay

Reviewed by jcayless on November 27, 2019

Note: Reference ranges provided on this web site are for guidance only, and may not reflect the most recent changes. Refer to laboratory reports for current reference data.

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