Saint Luke's Regional Laboratories

Serum gel tube and light blue top (sodium citrate) tubes

Serum and sodium citrate plasma are required for this test.

2 mL serum and 6 mL plasma

1 mL serum and 3 mL plasma

Refer to Blue Top Tube (3.2% Sodium Citrate) Collection Instructions

1. For serum specimens, label the tube appropriately (serum for beta-2 glycoprotein 1 antibodies, IgG and IgM and cardiolipin antibodies, IgG and IgM.)
2. For plasma specimens, centrifuge specimen in a centrifuge validated to ensure platelet poor plasma. 
3. Immediately transfer the plasma to a stoppered, plastic tube and centrifuge again for 10 minutes. 
4. Transfer the supernatant plasma into 3 screw-capped, plastic vials (each containing 1 mL) and send frozen at ≤ -20 °C, if possible.
5. If unable to centrifuge sodium citrate tube, forward unprocessed sodium citrate whole blood (minimum volume: 3 mL) to the laboratory promptly at room temperature only.
6. Label the specimens appropriately.

Serum - refrigerated; Plasma - frozen

The unspun specimen must arrive within 2 hours of collection.

85610 - Protime APL (EAP 30022490)
85613 - DRVVT APL (EAP 30020442)
85730 - APTT APL (EAP 30022090)
86146 - Beta-2 glycoprotein 1 IgG (EAP 30020073)
86146 - Beta-2 glycoprotein 1 IgM (EAP 30020075)
86147 - ACA IgG (EAP 30010040)
86147 - ACA IgM (EAP 30010060)
85597 - Hexagonal phase phospholipid test (if appropriate)
85670 - Thrombin time (if appropriate)
85730 x 3 - APTT mixing studies (if appropriate)

See individual test listings.

Activated Partial Thromboplastin Time (APTT), Dilute Russell Viper Venom Time (dRVVT), Activated Partial Thromboplastin Time (APTT) Mixing Studies, Hexagonal Phase Phospholipid Test, Beta-2 Glycoprotein 1 Antibodies, IgG and IgM, Prothrombin Time (PT), Cardiolipin Antibodies, IgG and IgM, and Thrombin Time