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Test Code FLUPV Lupus Anticoagulant Evaluation with Reflex

Reflex Tests

Test ID Reporting Name Available Separately Always Performed
FHEXC Hexagonal Phase Confirm No No
FDVTC DRVVT Confirm No No
FDVTX DRVVT 1:1 Mix No No
FCLOT Thrombin Clotting Time No No

Reporting Name

Lupus Anticoagulant Eval w/Reflexes

Specimen Type

Plasma Na Cit


Specimen Required


Collection Container/Tube: Light-blue top (3.2% sodium citrate)

Submission Container/Tube: Plastic vial

Specimen Volume: 3 mL platelet-poor plasma, in plastic vial

Collection Instructions: Draw blood into a 3.2% sodium citrate (light blue-top) tube. Centrifuge light blue-top tube 15 minutes at approx. 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 a plastic vial. Centrifuge a second time and transfer platelet-poor plasma into a new plastic vial. Plasma must be free of platelets (<10,000/mcl).

Freeze immediately and ship on dry ice.


Specimen Minimum Volume

2 mL

Specimen Stability Information

Specimen Type Temperature Time
Plasma Na Cit Frozen 30 days

Reject Due To

Hemolysis Mild reject; Gross reject
Lipemia NA
Icterus NA
Other NA

Reference Values

Lupus Anticoagulant                  Not Detected

 

    This interpretation is based on the following test results:

 

PTT-LA  Screen                      ≤ 40 seconds

DRVVT Screen                       ≤ 45 seconds

 

Day(s) Performed

Monday through Saturday

Report Available

2 to 8 days

Performing Laboratory

Quest Diagnostics Nichols Institute

CPT Code Information

85613/ Russell viper venom time (includes venom); diluted

85730/ Thromboplastin time, partial (PTT); plasma

85598/ Platelet neutralization (Hexagonal Phase Confirm)-(if appropriate)

85597/ Platelet neutralization (dRVVT Confirm)-(if appropriate)

85613/dRVVT 1:1 Dilution (if appropriate)

85670/Thrombin Clotting Time (if appropriate)

 

Method Name

Clot Detection