Protein S Antigen, Free
Order Name
PROT S FRE
Test Number: 1507050
Revision Date 10/01/2022
Test Number: 1507050
Revision Date 10/01/2022
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Protein S Antigen, Free
|
Microlatex Particle-Mediated Immunoassay | 27821-8 |
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 1.5mL (1) | Whole Blood | Sodium Citrate 3.2% (Blue Top) | Ambient whole blood or frozen aliquots |
| Alternate 1 | 1.5mL (1) | Double Spun Plasma | Sodium Citrate 3.2% (Blue Top) | Ambient whole blood or frozen aliquots |
| Instructions | Please indicate anticoagulant therapy. Collect properly filled Sodium Citrate 3.2% (Blue Top) tube. Whole blood must reach Labcorp Oklahoma, Inc. Central Lab for processing within 4 hours of collection. If sending citrated plasma aliquots, they must be double spun then aliquot 1.5 ml plasma from each tube into individual plastic aliquot tubes and freeze. Do not pool aliquots together! Do not thaw. Hemolyzed specimens are not acceptable. Stability: Ambient: 4 hours; Refrigerated: Unacceptable; Frozen at -20'C: 3 months, at -70'C: 6 months |
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| GENERAL INFORMATION | |
|---|---|
| Testing Schedule | Mon-Sat |
| Expected TAT | 2-3 Days |
| Clinical Use | Free Protein S is intended for quantitative determination of free Protein S using an Immuno-turbidimetric method. |
| CPT Code(s) | 85306 |
| Lab Section | Coagulation |