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Lupus Anticoagulant, Plasma
Message"Off campus clinics must send the patient to Cox South Outpatient Laboratory. Send order to Centralized Scheduling.
Specimen must arrive within 1 hour of draw.
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Specimen must arrive within 1 hour of draw.
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Test Code
49
CPT Codes
85613 x 2
Preferred Specimen
Light blue-top (citrate) tube
Minimum Volume
Full tube
Instructions
" Blood to anticoagulant ratio is critical.
Note: 1. Results may be affected by hematocrit >55%.
2. Tube should remain stoppered.
3. Anticoagulant therapy will interfere with testing.
4. If there is a delay in transport of >1 hour, centrifuge specimen for 10 minutes at 1,500 G. Remove plasma to a plastic tube, centrifuge an additional 10 minutes, remove plasma to a second plastic tube, freeze, and send specimen frozen.
"
Note: 1. Results may be affected by hematocrit >55%.
2. Tube should remain stoppered.
3. Anticoagulant therapy will interfere with testing.
4. If there is a delay in transport of >1 hour, centrifuge specimen for 10 minutes at 1,500 G. Remove plasma to a plastic tube, centrifuge an additional 10 minutes, remove plasma to a second plastic tube, freeze, and send specimen frozen.
"
Transport Temperature
Refrigerate =1 hour/Frozen OK
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
"Grossly hemolyzed, clotted blood, or an insufficient specimen is not acceptable.
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Methodology
"Dilute Russell’s Viper Venom Test Useful for investigation of possible phospholipid antibody. "
Setup Schedule
One time per week
Reference Range
"Negative (reported as positive or negative based on LA1/LA2 ratio)
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Performed By
CoxHealth
