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Test & Collection Guide

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Lupus Anticoagulant Screen

Alternate names:
LA, LAC
Laboratory:
Coagulation
Test Code:
LAS
Specimen types:
Plasma
Container types:
Sodium CitrateSodium Citrate
Collection Instructions:

Notification of anticoagulant therapy is essential

One (1x) Sodium citrate tubes is required. Do not use 1 ml citrate tubes.

Filled to label marker and mixed by inversion

The patient must not be receiving heparin

Unspun sample is stable for up to 4 hours and must be transport to laboratory immediately. (Sample must be double spun, aliquoted and frozen within 4 hours from time of collection).

 

Tests performed:

INR, APTT, APTT Mix, Silica Clotting Time and Dilute Russell's Viper venom time (LA screen/Confirm).

 

Frequency:
Weekly
Result Turnaround Time:
2 weeks
Reference Interval:

LA screen   <1.2 Lupus anticoagulant not detected.

LA Confirm <1.2 Lupus anticoagulant not detected

                    1.2 - 1.5 L.A. weakly present

                    1.5 - 2.0 L.A. moderately present.

                     >2.0      L.A. strongly present

                                                

Laboratory Use Only

  

 

If EMR is not available, Pathology results are available from Auscare.  If you do not have an Auscare login,please complete attached form. https://pathology.easternhealth.org.au/handbook/downloads/Auscare%20access.pdf

Instruction on how to use Auscare - https://pathology.easternhealth.org.au/handbook/downloads/Auscare%20instructions.pdf

SPECIMEN COLLECTION MODULE (SCM) FAQs - CLICK HERE

CLICK HERE for a consent form to perform tests not covered by Medicare

TURN AROUND TIMES - When will my result be available?

CLICK HERE for Minimum Labelling Requirements

CLICK HERE for a printable Pathology request form

CLICK HERE for a Log sheet for recording Pathology results

"THE ART OF CCCCOLLECTION"

PLEASE CLICK HERE FOR THE PREFERRED ORDER OF DRAW