Anti-factor xa test

Diagnostic method for control/monitoring of therapy with unfractionated heparin (UF) and low molecular weight heparin (LMW), especially in

• serious damage to the liver or kidneys
• high body weight (> 150 kg)
• low body weight (< 40 kg)
• during pregnancy
• for children and newborns

Sample material: 1 ml citrate plasma

Removal instructions: The blood sample should be taken 2 - 4 h after the last administration of heparin. For longer transport, centrifuge citrate blood after collection, pipette the plasma into a separate tube (without additives) and freeze (approx. - 20°C)

Sample transport Postal shipment possible: Sample transport cooled (+ 2°C - + 8°C) or deep-frozen (approx. - 20°C)

Reference value: For adults the reference value is: 0,4 - 1 IU/ml. This range corresponds to the therapeutic range and is to be adapted individually. The prophylactic range is 0.2 - 0.4 IU/ml for orientation and must be adapted individually.

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