Quick Reference
- Full form
- Serum Prolactin
- Sample type
- Blood
- Fasting
- Not required
- Marker measured
- 1
- Report turnaround
- Same day
- Available at
- All locations
About Serum Prolactin
Prolactin is a hormone most known for its role in breastfeeding, but elevated levels outside of pregnancy or nursing can point to a pituitary gland issue, irregular periods, or fertility concerns.
No fasting is required, though morning testing is often preferred since levels can be affected by stress and activity. Results are available the same day.
How to Prepare
- No fasting required.
- Try to relax before your blood draw, since stress can temporarily raise levels.
Frequently Asked Questions
What is a prolactin test used for?
It helps investigate irregular periods, fertility concerns, or unexplained milk production outside of pregnancy or nursing.
Do I need to fast before this test?
No fasting is required, though a calm morning sample is often preferred.
Can stress affect my prolactin result?
Yes, stress and recent physical activity can temporarily raise prolactin, so try to stay relaxed before your blood draw.
What symptoms suggest prolactin testing?
Irregular periods, unexplained milk production, or fertility difficulties are common reasons for this test.
How soon will my report be ready?
Same day.
Is home sample collection available?
Yes, in all City Care Lab service areas.
This page provides general health information and is not a substitute for medical advice. Speak with your doctor about your specific results and treatment.