Lupus Anticoagulant Evaluation (LAB002016; LAB002017) | ||
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Test Mnemonic: | Lupus Anticoagulant Evaluation
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Specimen Requirements: | ||
Test Included: |
Lupus Anticoagulant Evaluation
DRVVT
PTT-LA
Hexagonal Phospholipid Neutralization
Prothrombin Time/INR
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Collection: | Routine venipuncture; discard 1st mL of blood by collecting a discard tube prior to collecting the blue-topped (3.2% sodium-citrate) tube. For collections with butterfly blood collection sets, a discard tube should also be collected prior to collection of the blue top to ensure sufficient sample volume. Drawing a discard tube will displace the air from the blood collection set tubing to ensure proper blood draw volume.
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Container: | Blue-topped (3.2% sodium-citrate) tube |
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Minimum Volume: | 2.5 mL of Plasma |
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Storage/Transport: |
Shipping/Handling instructions:
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Specimen Preparation: |
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Stability: |
Ambient - 2 hours; Refrigerated - Unacceptable; Frozen -20oC – 2 weeks, at -70oC - 6 months
If the testing is not completed within 2 hours, platelet-poor plasma should be removed without disturbing the sedimented cells (buff-coat) and frozen at -20oC or below for short-term storage (up to 2 weeks), or -70oC for 6 months.
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Causes for Rejection: |
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Reference Range: | By report (reports may vary based on instrumentation, patient age and sex)
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Turnaround Time: |
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Methodology: | Electromechanical viscosity detection Optical Clot-Based
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Performed: | Samples are accepted 24 hours per day at Sample Management, 7.412 CSW Bldg.
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Lab: | Hematopathology |
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Synonyms: | Lupus Anticoagulant |
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Clinical Indication: | Useful for detection of the presence of Lupus Anticoagulant
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CPT 4 Code: | 85610 (PT); 85730 (APTT); 85598 (PTT-LA)85613 (DRVVT),85598 (Staclot LA)
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Note: | If applicable, state clinical information that is required to be provided with specimen.
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When ordering tests for which Medicare or Medicaid reimbursement will be sought, physicians should only order tests that are medically necessary for the diagnosis or treatment of the patient. Components of the organ or disease panels may be ordered individually. The diagnostic information must substantiate all tests ordered and must be in the form of an ICD-10 code or its verbal equivalent. |