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Platelet Function Test

Centralized Core Laboratory - : Hematology

Test ID :
Test Workstation :
Specimen Type:
Tube Type:
Blue top (sodium citrate) tube
Collection Volume:
2.7 mL
Cause for Rejection:
Sample hemolyzed, clotted, diluted with IV fluid; contaminated with heparin; improperly filled; received on ice; received > 4 hrs after drawn
Daily, 24 hours
Test Cartridge System Simulating Platelet Adhesion and Aggregation
Special Instructions:
Specimens should be sent to the lab immediately. Specimens should NOT be sent on ice. Whole Blood Do Not Spin If collected at an offsite location, specimen is stable only 4 hours. Call a STAT Courier
1 hour
Additional Info:
Reference range:
  • COL/EPI = 80-184 sec
  • COL/ADP = 56-102 sec
  • NOTE: Platelet counts less than 50,000 will not give accurate results and may be rejected.
  • CPT Code:
    Panel Includes:
    Collagen/Epinephrine, Collagen/ADP
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