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HelpTest ID BLOD1482 Activated Protein C Reflex to Factor V Leiden
Specimen Type/Requirements
Blue top (Sodium Citrate) tube - Plasma, Double Spun Platelet Poor
and
Lavender top (EDTA) tube - Whole Blood
See Coagulation Testing and Platelet Poor Plasma Preparation
Note: EDTA specimen must not be used for any other testing to prevent contamination.
Test is affected by gross hemolysis. Test is not affected by lipemia.
Specimen Volume
Sodium Citrate Plasma:
| Preferred Volume | 2.0 mL |
|---|---|
| Minimum Volume | 0.7 mL |
EDTA Whole Blood:
| Preferred Volume | 2.0 mL |
|---|---|
| Minimum Volume | 2.0 mL |
Stability/Transport
Sodium Citrate Plasma:
| Room Temperature | 4 hours | |
|---|---|---|
| Refrigerated | Not Acceptable | |
| Frozen | 1 month | Preferred for transport |
EDTA Whole Blood:
| Room Temperature | Not Acceptable | |
|---|---|---|
| Refrigerated | 7 days | |
| Frozen | 12 months | Preferred for transport |
Performed Test Frequency
Wednesday
Methodology
APTT-Based Assay (Clot-Based)
Performing Lab
Sanford Laboratories Sioux Falls
CPT
85307