Protein C & S Screen

Specimen:

Test Code

YPROTCS

Specimen Name

Protein C & S Screen

Collect

2-Blue Top (Na Citrate)

Submit

2 mLs (Min: 1 mL) Plasma CRITICAL FROZEN

Special Handling

Transfer 2 mL platelet-poor plasma to a standard transport tube.

Rejection Criteria

Serum. EDTA plasma, clotted or hemolyzed specimens.

Stability

Ambient: 4 hours; Refrigerated: Unacceptable; Frozen: 3 months

Methodology

Electromagnetic Mechanical Clot Detection

Performed

Sunday - Saturday

Reported

3-5 days

CPT Codes

  • 85303
  • 85306

Components

Additional Information

Acceptable panel to detect protein C and S deficiencies. Preferred test for detecting protein S deficiency is Protein S Free, Antigen. Do not order if the individual has been on warfarin therapy in the previous 2-4 weeks.

Disclaimer:

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Test Information

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Common Lab Definitions

  • Serum 
  • Plasma 
  • STT