Test name
- ქართულად
- პროლაქტინი
- English
- Prolactin
- Abbreviation
- PRL
What does the test measure?
Measures a pituitary hormone whose level can change with stress and time of day.
Why is it ordered?
To evaluate causes of raised prolactin, menstrual irregularities and milk discharge.
How should I prepare?
- Arrange a morning blood draw time in advance.
- Before the test, avoid strenuous exercise and breast stimulation.
- Rest quietly for 15–30 minutes before the blood draw.
- Tell your doctor about medicines, changes in sleep and any chance of pregnancy.
Do I need to fast?
Fasting is not always necessary, but a particular laboratory's protocol may require it. Avoid severe stress and strenuous exercise before the blood draw.
When should the test be done?
It is often best to have blood drawn about 2–3 hours after waking, in a calm setting. The time set by your doctor takes priority.
What can affect the result?
- Sleep, stress and fear of needles
- Breast stimulation and strenuous exercise
- Certain psychotropic and other medicines
Which sample is needed?
Venous blood — serum or plasma, depending on the method
How is the sample collected and stored?
The blood sample is collected by a qualified staff member. The tube type, required volume, and processing and storage conditions are set by the laboratory's specific method. You do not need to store the sample yourself.
What does the result mean?
Raised prolactin can be temporary (stress, sleep), medicine-related or hormonal; the test is repeated if needed.
When should I see a doctor?
See an endocrinologist or gynecologist for menstrual irregularities, milky nipple discharge, infertility or repeatedly raised prolactin. New severe headache and changes in vision need immediate evaluation.
Important warnings and recommendations
If prolactin is raised, your doctor may order a repeat test or a macroprolactin assessment.