Days Set Up
Wednesday, Saturday
Analytic Time

6 - 14 days

Soft Order Code

Test Updated:


PAI-1 Locus 4G/5G
4G/5G Genotyping
PAI-1 Polymorphism

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Find a Requisition

All specimens should be accompanied by a requisition.

Submitting Specimens

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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


Test Usage

Deep vein thrombosis (DVT) and coronary artery disease (CAD) are associated with increased PAI-1 levels. Elevated PAI-1 levels may help predict risk of reinfarction in survivors of myocardial infarction, particularly in young individuals. PAI-1 levels tend to be higher in individuals with the 4G/4G genotype.

Reference Range

Interpretive report provided.

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

Specimen Requirements

Collection Onsite

This test is not available to University of Michigan registered patients. This test is discontinued for in-house (UMHS patient) requests based on the recommendations of the UMMC Lab Formulary Committee.

Collection Offsite

Collect specimen in a lavender top or a yellow top (ACD) tube. Refrigerate and send intact specimen.

Normal Volume
5 mL EDTA or ACD whole blood
Minimum Volume
1 mL EDTA or ACD whole blood

Billing Information

CPT Code
Pro Fee Code

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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.