Citrate

Do NOT use a heparinised syringe. Fill to line indicated on collection tube and mix specimen thoroughly by gentle inversion. Must arrive in the Core Laboratory within 1 hour of collection. LAB NOTES Spin specimen on arrival, aliquot plasma, freeze at -70°C

LAB NOTES: Add-On Tests - check with Haematology first (see CH-W-148)

Monthly - by consultation with lab