Pathology Handbook

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Lupus anticoagulant

Alternative Names:

Lupus Inhibitor Screen
LA
LAS
LE
LAC

Laboratory:

Haematology

Test Code:

LUP

Medicare rebatable:

Registration Instructions:

Please collect 2 x 2.7 mL coagulation (blue top) when this is requested by itself.

Can be requested with AT, Protein C, Protein S and coagulation profile. Please collect total 4 x 2.7 mL tubes for this test combination.

Includes APTT Lupus Screen/Lupus Confirm and DRVVT Lupus Screen/Lupus Confirm.

Specimen Types:

Plasma

Container Types:

Sodium Citrate

Adults Volume or Mass:

2.7 mL

Minimum/Paediatric Volume or Mass:

1.7 mL

Collection & Request Instructions:

A separate container is required for this test.

Transport Instructions:

Room Temperature
Send to lab immediately

Processing Instructions:

Centrifuge

Double centrifugation required. Centrifuge immediately for 10 minutes at 2000-2500 g. Collect the plasma supernatant and repeat the centrifugation step. This step is performed by the coagulation department NPV.

Assay Frequency:

Weekly

USEFUL LINKS

Frozen Section Booking Form

Printable Pathology Request Form

Order of Draw - Blood Samples