Test directory: Protein C Antigen

Ordering Code 101
Test Name Protein C Antigen
Preferred Specimen Plasma
Preferred Container Citrate, 3.2% (Lt Blue)
Other Specimen/Container None
Optimum Volume 1 mL
Collection Instructions Draw full tube
Avoid hemolysis.
Handling Instructions Double centrifuge coag plasma
Separate and freeze immediately.
Transport Requirements Oahu: Frozen
Airline: Frozen
Specimen Stability Ambient: Not Stable
Refrigerated: Not Stable
Frozen: 2 Weeks
Rejection Criteria Grossly hemolyzed, Received ambient at reference laboratory,
Received refrigerated at reference laboratory
Avail. Stat NO
Analytic Time Up to 5 Days
Methodology Enzyme Immunoassay (EIA)
Reference Lab  Quest Diagnostic Lab-NI

Reference range(s)

The reference ranges listed below are valid on this date of June 29, 2025.
Component Age Male Norm Male Critical Low Male Critical High Female Norm Female Critical High Female Critical Low Units Add'l info
Protein C Antigen ALL See report.