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Test ID: FLUPV    
Lupus Anticoagulant Evaluation with Reflex

Testing Algorithm Delineates situation(s) when tests are added to the initial order. This includes reflex and additional tests.

If the PTT-LA is >40, then the Hexagonal Phase Confirmation (FHEXC) will be performed at an additional charge.

If the Hexagonal Phase Confirm is positive or weakly positive, a Thrombin Clotting Time (FCLOT) will be performed at an additional charge.

If the DRVVT Screen is >45 then the DRVVT Confirmation (FDVTC) will be performed at an additional charge.

If the DRVVT Confirmation is positive, then the DRVVT 1:1 Mix (FDVTX) will be performed at an additional charge.

Specimen Type Describes the specimen type needed for testing

Plasma Na Cit

Specimen Required Defines the optimal specimen. This field describes the type of specimen required to perform the test and the preferred volume to complete testing. The volume allows automated processing, fastest throughput and, when indicated, repeat or reflex testing.

3 mL platelet-poor plasma, shipped frozen. Draw blood into a 3.2% sodium citrate (light blue-top) tube. Centrifuge for 15 minutes at 1500 g within 60 minutes of collection. Using a plastic pipette, remove plasma, taking care to avoid the WBC/platelet buffy layer and place into plastic vial. Centrifuge a second time and transfer platelet-poor plasma into a new plastic vial. Plasma must be free of platelets (<10,000/uL).

Freeze immediately.

Specimen Minimum Volume Defines the amount of specimen required to perform an assay once, including instrument and container dead space. Submitting the minimum specimen volume makes it impossible to repeat the test or perform confirmatory or perform reflex testing. In some situations, a minimum specimen volume may result in a QNS (quantity not sufficient) result, requiring a second specimen to be collected.

2 mL

Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected


Mild reject; Gross reject


Warm reject; Cold reject







Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the laboratory. Alternate acceptable temperature(s) are also included.

Specimen TypeTemperatureTime
Plasma Na CitFrozen90 days