Also known as: LA; Lupus Anticoagulant Panel; Lupus Inhibitor; LA Sensitive PTT; PTT-LA; Dilute Russell Viper Venom Test; DRVVT; Modified Russell Viper Venom Test; MRVVT
Formal name: Lupus Anticoagulant
Related tests: Antiphospholipid Antibodies; Hexagonal phase phospholipid neutralization assay; Partial Thromboplastin Time (PTT); Thrombin Time; Cardiolipin Antibodies; Prothrombin Time (PT); Anti-beta2 glycoprotein-I; Kaolin Clotting Time; Platelet Neutralization Test
Why should I do it?
To help evaluate a prolonged partial thromboplastin time (PTT) and/or a thrombotic episode, to help determine the cause of recurrent miscarriages, and as part of an evaluation for antiphospholipid syndrome
When should I do it?
When you have a prolonged PTT test; when you have had a venous or arterial thrombosis and/or thromboembolism; when you have had recurrent miscarriages, especially in the second and third trimesters
What Kind of Sample is Needed?
A blood sample obtained by inserting a needle into a vein in the arm
Test Preparation Needed?