Protein C and S Panel #2

Test Code

CPT Codes
85302, 85305, 85306

Protein C Antigen
Protein S Antigen, Total and Free

Preferred Specimen
1.5 mL citrated plasma collected in each of two 3.2% sodium citrate (light blue-top) tubes, frozen (-70°C) immediately

Minimum Volume
1.4 mL (1 mL 1st tube; 0.4 mL 2nd tube)

Please submit a separate, frozen vial for each special coagulation assay ordered.
Please see the individual tests for specimen requirements, and stabilities.

Transport Container
Plastic screw-cap vial(s)

Transport Temperature

Specimen Stability
Frozen (-70°C): 30 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Enzyme Immunoassay • Turbidimetric

Setup Schedule
Set up: Tues, Thurs, Sat; Report available: Same day

Reference Range
See individual tests

Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153

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.