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Test Code LUPUS Lupus Anticoagulant Profile, Blood

Important Note

For outpatients, this test must be collected at the Valley Health System- Ridgewood Campus Outpatient Laboratory only.

 

Specimen Requirements

Container/Tube: Three (3) Light blue-top (3.2% sodium citrate) tube

Specimen Volume: Full 4.5-mL tube of whole blood

Collection Instructions: Immediately invert tube and mix gently 8 times. Clotted blood is not acceptable. Avoid hemolysis.

Note: 1. Patient should not be receiving Coumadin® for at least 14 days and heparin for at least 48 hours prior to draw.

2. Label specimen appropriately.

Specimen Transport Temperature

Ambient

Performing Laboratory

The Valley Hospital

Methodology

Reflex Information:

Initial testing may include activated partial thromboplastin time (APTT) and dilute Russell’s viper venom time (DRVVT). If any of these results are significantly prolonged, additional testing may include thrombin time, factor VIII, DRVVT mixing, or confirmation studies.

Test Classification and CPT Coding

85613-DRVVT
85730-APTT
85240-Factor VIII (if appropriate)

85613-DRVVT confirmation (if appropriate)
85670-Thrombin time (if appropriate)

85732-DRVVT 1 hour mix (if appropriate)