Casandra
Casandra Test Code QD87288Version 1 (DRAFT)
Performing Lab
Protein S Antigen, Total
Clinical Use
Order TestUse
Not provided.
Special Instructions
Not provided.
Limitations
Limitations: Information not provided explicitly on source.
Test Details
Methodology
Immunoassay (Immunoturbidimetric Immunoassay)
Biomarkers
Protein S Antigen, Total
AnalyteProtein S Antigen, Total
Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
Result Turnaround Time
1-4 days
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Plasma
Volume
Not provided
Minimum Volume
0.5 mL
Container
plastic vial
Collection Instructions
Draw blood in a light blue-top tube containing 3.2% sodium citrate; centrifuge 15 minutes at 1500 g within one hour of collection, remove platelet‑poor plasma avoiding buffy layer, centrifuge a second time and transfer to new plastic vial; plasma must be free of platelets (<10,000/uL); freeze immediately and transport on dry ice.
Causes for Rejection
Hemolysis; received thawed
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Unacceptable |
| Refrigerated | Unacceptable |
| Frozen | 30 days |
Similar Tests
Other tests from different labs that may be relevant
Protein S, Total Antigen
ARUP Laboratories
Protein S Antigen:Factor VII Antigen Ratio
Labcorp
Protein S Antigen
Labcorp
Protein S Antigen, Plasma
Mayo Clinic Lab
Protein S, Free Antigen with Reflex to Protein S, Total Antigen
ARUP Laboratories
Protein S Antigen, Total, Plasma
Mayo Clinic Lab
Protein S Free, Antigen
ARUP Laboratories
Protein C and S Panel, Total, Antigen
ARUP Laboratories
Protein S Antigen, Free, Plasma
Mayo Clinic Lab
Protein S Deficiency Profile
Labcorp