Platelet Function Scrn (PFS)

Department: Coagulation
Test Synonym(s): LAB318, PFS
CPT Codes: 85576
Methodology: Aperture closure
Reference Range: Collagen/ADP: 62-100 seconds Collagen/Epinephrine: 82 - 150 seconds
Tube Type: Light blue top (Sodium Citrate) - 2 tubes required. Samples must be hand delivered. Samples received via the pneumatic transport tube will be rejected.
Specimen: Citrated whole blood
Alternate Specimen: None
Pediatric Requirements: 2.7 mL (2 tubes required)
Volume: 5.0 mL whole blood
Minimum Volume: 5.0 mL whole blood
Temperature: Room Temperature
Stability: Room temperature: 4 hours
Reasons for Rejection: Clotted sample, incorrectly filled tube, sample transported to lab via pneumatic tube system, sample arriving into the lab after 4:00 PM, sample >4 hours old, sample refrigerated or sent on ice.
Days Performed: Daily
Times Performed: Continuous
TAT: 4 hours
Special Instructions: No ice. Deliver to lab immediately - tube must be full and not clotted. Sample can not be sent via pneumatic tube. Sample must be hand delivered. Do not expose samples to cold temperatures.

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