Days Set Up
Daily, 24 hours
Analytic Time

4 hours

MiChart Code
Apixaban (Eliquis), Anti-Xa
Soft Order Code
APIX

Test Updated:

Synonyms

Eliquis
Anti-Xa Apixaban
Anti-Xa Eliquis
Anti-10a Apixaban

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Find a Requisition

All specimens should be accompanied by a requisition.

Submitting Specimens

Learn about how to properly label and where to ship specimens.

Order Kits and Supplies

MLabs provides all the supplies necessary for the collection of specimens.

Test FAQ

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Test Overview

Test Methodology

Chromogenic Substrate Assay

Test Usage

The Apixaban assay is a chromogenic assay for the determination of the activity of Apixaban (Eliquis) in plasma and for the monitoring of Apixaban therapy.

Reference Range
 

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Specimen Requirements

Collection Offsite

<ul><li>Collect specimen in a 3.2% sodium citrate blue top Vacutainer® tube. Immediately mix by inversion. Specimen should arrive at lab within 3 hours of collection. Transport at room temperature.
</li><li>Alternatively, centrifuge and aliquot plasma into a plastic vial and freeze within 4 hours of collection.
</li><li>Transport on dry ice if frozen aliquot is submitted.
</li><li>Avoid collection of the blood through lines that have been previously flushed with heparin.
</li><liIf the blood must be drawn through a VAD (vascular access device), the line should be flushed with 5 mL of saline and the first 5 mL of blood or six dead space volumes of the VAD discarded.
</li></ul>

Blue Top Tube
Normal Volume
Full 2.7mL tube or 1mL plasma aliquot
Minimum Volume
Full 1.8mL tube or 1mL plasma aliquot

Billing Information

CPT Code
 
Pro Fee Code
 
LOINC
 

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Our High Standard

Quality that sets us apart

As the reference laboratory division of Michigan Medicine's Department of Pathology, MLabs shares the institution's commitment to applying established quality principles to clinical laboratory testing. Like other large organizations in complex, consequential fields, we rely on an established approach to monitor quality throughout the testing process.