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Platelet Function Time
MessagePerforming Lab: Lakeview, Regions
Test Code
3685
Alias/See Also
Sunquest: PFCT; Platelet Function Closure Time, Collagen and Epinephrine
Includes
Reflex to Collagen/ADP aka PFCTA, Platelet Function Time B
Preferred Specimen
2.7 mL (in 3 mL tube) 3.2% Sodium Citrate Plasma (light blue-top) tube filled to fill line on the tube
Minimum Volume
2.7 mL
Instructions
Do NOT centrifuge specimen
HP Clinics: Send to RH within 8 hours
Sartell: Send to St. Cloud Hospital - STAT
Lakeview: Do not send in pneumatic tube station
Note: recommend collecting two tubes for repeat/reflex testing
HP Clinics: Send to RH within 8 hours
Sartell: Send to St. Cloud Hospital - STAT
Lakeview: Do not send in pneumatic tube station
Note: recommend collecting two tubes for repeat/reflex testing
Transport Temperature
Room Temperature
Specimen Stability
Room Temperature: 8 hours
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Refrigerated or Frozen
Methodology
Platelet aggregation
Setup Schedule
Daily
Report Available
Same Day
Reference Range
<185 seconds
Clinical Significance
The Collagen/Epinephrine (COL/EPI) Test Cartridge is the primary cartridge used to detect platelet dysfunction induced by intrinsic platelet defects, von Willebrand disease or exposure to platelet inhibiting agents. The Collagen/ADP (COL/ADP) Test Cartridge is used to indicate if an abnormal result obtained with the COL/EPI Test Cartridge may have been caused by the effect of acetyl salicylic acid (ASA) or medications containing ASA.
