Lupus anticoagulant assay :

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Lupus anticoagulant ( clot based assay)

&

Anti Beta -2 - Glycoprotein1

Deliver tubes immediately to the laboratory at room temperature

OR Separate plasma from cells as soon as possible.

Store frozen at -40°C  and transport frozen plasma on dried ice

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Platelet count must be < 10x 109/L in plasma prior to freezing