Platelet factor 3 (PF3) availability
Last updated: Thursday, 25, March, 2004
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4.5 mL blood added to 0.5 mL citrate.
Platelets are substituted for phospholipid in tests based on either the APTT or the Stypven time.
Rarely indicated in the investigation of platelet function.
PF3 is platelet membrane phospholipid which becomes available as a surface for coagulation reactions after platelet aggregation.
Hardisty RM and Hutton RA. Br J Haematol 1966; 12: 764-767.
Chanarin I ed. Laboratory Haematology. Churchill Livingstone 1989.