Thrombin time Citrate (blue) 2.7 or Routine 4 4 hrs 4.5ml hours bottles cannot ========= be accepted, as Urgent 1 hour results are inaccurate. Coagulation Citrate (blue) 2.7 or Routine 4 4 hrs. screen: 4.5ml hours bottles cannot (PT, APTT, ========= be accepted, as Fibrinogen) Urgent 1 hour results are inaccurate. D-Dimer Citrate (blue) 2.7 or Routine 4 4 hrs. 4.5ml hours bottles cannot ========= be accepted as Urgent 1 hour results are inaccurate. Antiphospholipid These investigations require special collection procedures, 4 hrs. post antibodies screen contact laboratory for details draw (1 NB at CWH 3 x 4.5 ml Citrate (blue) required month if frozen) DRVVT Citrate 14 days Refer to 4 hrs. post (DRVVT is part of laboratory for draw (1 See lupus screen) comment sample bottle & month if volume frozen) Thrombophilia These investigations require special collection procedures, 4 hrs. post contact laboratory for details draw (1 NB at CWH 4 x 4.5 ml Citrate (blue) and 1 x 4.0 ml EDTA month if required frozen) Activated Protein Citrate 14 days Must be 4 hrs. post C 4.5 ml approved by draw (1 Haematology month if Registrar frozen) Antithrombin Citrate 14 days Must be 4 hrs. post approved by draw (1 4.5 ml Haematology month if Registrar frozen) Protein C Activity Citrate 14 days Must be 4 hrs. post approved by draw (1 4.5 ml Haematology month if Registrar frozen) Protein S Free Citrate 14 days Must be 4 hrs. post approved by draw (1 4.5 ml Haematology month if Registrar frozen) Prothrombin EDTA 4 ml 28 days Must be Indefinitely gene mutation approved by but routine Haematology samples Registrar may only be stored for 5days
Thrombin time Citrate (blue) 2.7 or 4.5ml Routine 4 hours ========= Urgent 1 hour bottles cannot be accepted, as results are inaccurate. 4 hrs Coagulation screen: (PT, APTT, Fibrinogen) Citrate (blue) 2.7 or 4.5ml Routine 4 hours ========= Urgent 1 hour bottles cannot be accepted, as results are inaccurate. 4 hrs. D-Dimer Citrate (blue) 2.7 or 4.5ml Routine 4 hours ========= Urgent 1 hour bottles cannot be accepted as results are inaccurate. 4 hrs. Antiphospholipid antibodies screen These investigations require special collection procedures, contact laboratory for details NB at CWH 3 x 4.5 ml Citrate (blue) required 4 hrs. post draw (1 month if frozen) DRVVT (DRVVT is part of lupus screen) Citrate See comment 14 days Refer to laboratory for sample bottle & volume 4 hrs. post draw (1 month if frozen) Thrombophilia These investigations require special collection procedures, contact laboratory for details NB at CWH 4 x 4.5 ml Citrate (blue) and 1 x 4.0 ml EDTA required 4 hrs. post draw (1 month if frozen) Activated Protein C Citrate 4.5 ml 14 days Must be approved by Haematology Registrar 4 hrs. post draw (1 month if frozen) Antithrombin Citrate 4.5 ml 14 days Must be approved by Haematology Registrar 4 hrs. post draw (1 month if frozen) Protein C Activity Citrate 4.5 ml 14 days Must be approved by Haematology Registrar 4 hrs. post draw (1 month if frozen) Protein S Free Citrate 4.5 ml 14 days Must be approved by Haematology Registrar 4 hrs. post draw (1 month if frozen) Prothrombin gene mutation EDTA 4 ml 28 days Must be approved by Haematology Registrar Indefinitely but routine samples may only be stored for 5days