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General
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Clinical Use:
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Anti-Factor Xa activity is the measurement of choice in patients receiving therapeutic low molecular weight heparin due to its greater activity against FXa. It is also used to measure effectiveness of Rivaroxaban, Danaparoid, Fondaparinux and Apixaban. |
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Availability:
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Samples are tested routinely during the testing laboratory's hours of operation. |
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Aliases/Synonyms:
| Anti-Xa, Clexane, Factor 10A, Fragmin, LMWH, |
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Code:
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AFX |
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Handling Instructions (to laboratory):
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Send whole sample ambient.
Send separated sample frozen on dry ice. |
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Hyperlink:
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Reference Interval:
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Refer to report or laboratory
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Collection Requirements
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Container:
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Sodium Citrate-3.2% (BLUE), |
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Sample Type:
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See container |
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Minimum Collection Volume:
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2.7mL |
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Collection Instructions:
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If sample will not reach laboratory within 4 hours of collection, it must be double centrifuged, separated and frozen.
Document the dosage of the specific low molecular weight heparin administered. |
Processing Requirements
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Alternate Containers:
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Processing Instructions:
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Minimum Assay Volume:
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Stability:
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4 hours ambient |
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Transport Instructions (to testing laboratory):
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Send separated sample frozen on dry ice. |
Testing Locations
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Performed at:
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Section
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Department
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Site
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Contact Phone
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| Coagulation |
Haematology |
Fiona Stanley Hospital |
6152 8135 |
| Coagulation |
Haematology |
QEII Medical Centre |
6383 4006 |
| Coagulation |
Haematology |
Royal Perth Hospital |
9224 3998 |
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Last Updated : 01-10-2020 11:33 |