Test Overview

Test Methodology


Reference Range*

50 - 130 units

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

Test Details

Days Test Performed

Monday, Wednesday

Analytic Time

4 - 7 days

Soft Order Code





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Laboratory Reference

Mayo Wild 57 (ZW57) (Esoterix Coagulation 300056)

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Test FAQ

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Specimen Requirements

Offsite Collection Instructions

Collect specimen in a blue top (citrate) tube. Centrifuge, aliquot plasma into a plastic vial and freeze.


Blue Top Tube

Normal Volume

1 mL plasma

Minimum Volume

0.5 mL plasma

Additional Information

Test sent to Mayo Medical Laboratories; performed by Esoterix Coagulation.

Billing Information

Fee Codes

CPT Code


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