AnMed Laboratory Services

         

Lupus Type Anticoagulant  (LUP ANTI)

Synonyms:  Lupus Anticoagulant; Lupus Anticoagulant Screen
Specimen:  Blood; (3) Blue (sodium citrate) top vacutainer tubes. Patient preparation: Avoid warfarin (Coumadin®) therapy for two weeks and heparin therapy for two days prior to the test.
                        Volume:  Full primary tube
Minimum Volume:  2 mL plasma; separate into 3 tubes
Collection:  Citrated plasma samples should be collected by double centrifugation. Centrifuge for 10 minutes and carefully remove 2/3 of the plasma using a plastic transfer pipette, being careful not to disturb the cells.Transfer to a plastic transport tube, cap, and
Rejection Criteria:  QNS, hemolysis, clotted specimen, specimens contaminated with heparin; specimen received unfrozen or improper labeling.
Reference Range:  See report
Methodology:  PTT-LA (lupus-senstive APTT) and DRVVT screen, mixing study if screening tests are prolonged; confiramtion if the mixing study does not coorelate.
Test Use:  The qualitative detection of lupus anticoaulants in plasma
Additional Information:  Patient preparation: Avoid warfarin (Coumadin) therapy for 2 weeks and heparin therapy for 2 days prior to the test. If reflex testing is performed, additional charges/CPT code9s) may apply
Testing Includes:  Specimen sent to LabCorp. LabCorp test # 117892. Qualitative detection of lupus anticoagulants.
Testing Facility:  LabCorp