Test Details
Mnemonic
PRSF
Ordering Code
3005100
CPT-4 Code(s)
85306
Specimen Information
Collect
Light blue 3.2% sodium citrate
Specimen Preparation
For complete instructions, see Coagulation Test Collection Guide found under Resources/Interpretation Guides and Forms.
Send 1.0 mL platelet-poor plasma in a screw capped plastic vial. CRITICAL FROZEN.
Send 1.0 mL platelet-poor plasma in a screw capped plastic vial. CRITICAL FROZEN.
Minimum Volume
0.5 mL
Transport Temperature
CRITICAL FROZEN
Rejection Criteria
Refrigerated, thawed, refrozen specimens, serum
Stability
Room temperature: 4 hours
Refrigerated: Unacceptable
Frozen (-20°C): 30 days
Refrigerated: Unacceptable
Frozen (-20°C): 30 days
Methodology
Immunoturbidimetric
Reference Range
Male: 57 - 171% normal
Female: 50 - 147% normal
Female: 50 - 147% normal
Performing Laboratory
Warde Medical Laboratory
New York DOH Approval Status
Yes