Diagnostic test
Prolactin (PRL)
About test
What does Prolactin (PRL) measure?
The Prolactin (PRL) test measures the level of prolactin, a hormone involved in breast milk production and reproductive function. It may be used to help evaluate symptoms such as irregular or absent menstrual periods, difficulty becoming pregnant, unexpected milk discharge, reduced sexual desire, or erectile difficulties. Healthcare professionals may also order it when assessing possible pituitary gland or hormone-related conditions. Results are interpreted alongside symptoms, medical history, and other test findings.
This overview is educational. Use the recorded preparation, sample and lab-partner details below for collection guidance, and confirm any missing information before collection.
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Compare eligible lab partners
Prices, report times and availability are shown from the catalog records for each eligible partner.
Sagepath Labs
- Sample for analysis
- Serum (1 mL)
- Report time
- 11:00/18:00
Preparation and specimen requirements can vary by test and laboratory. Follow the instructions shown for your selected partner and any advice from your healthcare professional.