Test Overview

Test Methodology

TOPRL: Electrochemiluminescent Immunoassay
PEGPR: Polyethylene Glycol (PEG) Precipitation Followed by Electrochemiluminescent Immunoassay

Reference Range*

< 18 years not established for males or females
Prolactin total > or = 18 years: Males 4.0-15.2 ng/mL Females 4.8-23.3 ng/mL
Prolactin unprecipitated > or = 18 years: Males 2.7-13.1 ng/mL Females 3.4-18.5 ng/mL

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

Test Limitations

Patient Preparation: For 12 hours before this test do not take multivitamins or dietary supplements containing biotin (vitamin B7), which is commonly found in hair, skin, and nail supplements and multivitamins

Test Details

Days Test Performed

Monday - Sunday

Analytic Time

3 - 4 days

Soft Order Code


MiChart Code




Laboratory Reference


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Specimen Requirements

Offsite Collection Instructions

Collect specimen in SST or red top tube. Spin and aliquot into a screw capped plastic tube. Send to Specimen Processing refrigerated


Yellow Top Tube
Red Top Tube

Normal Volume

1 mL serum

Minimum Volume

0.6 mL serum

Additional Information

Test performed by Mayo Clinic Laboratories

Billing Information

Fee Codes

CPT Code

84146 x 2

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