Analytic Time

7 - 10 days

Soft Order Code

Test Updated:


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All specimens should be accompanied by a requisition.

Submitting Specimens

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

Test FAQ

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Test Overview

Test Methodology

Radioimmunoassay (RIA) following hydrolysis and extraction.

Test Usage
Reference Range

Males: 3.0 - 8.0 mcg/24 hours; Females: 4.0 - 30.0 mcg/24 hours.

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

Specimen Requirements

Collection Offsite

Collect 24 hour urine specimen with no preservative. Aliquot 10 mL into a plastic urine container and freeze. Record total 24 hour urine volume and collection dates/times on request form. Patient should not be on any steroid, ACTH, gonadotropin or Estrogen medications, if possible, for at least 48 hours prior to collection of specimen. Oral contraceptives and estrogen replacement therapy may influence Estrone levels.

Normal Volume
10 mL aliquot of 24 hour urine collection
Minimum Volume
5 mL aliquot of 24 hour urine collection

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.