Test Description

Why get tested?

The prolactin levels test is very frequently used to detect a prolactinoma tumor. This test also finds out the reason for infertility. The primary function of the prolactin hormone is lactation. During pregnancy and just after the birth of the child, the prolactin levels generally increase. The pituitary gland produces the prolactin hormone. 

• Women, men as well as infants may have abnormal prolactin level condition

• This lab test identifies lactation problems.

• It also detects if you have an abnormality in the pituitary gland.

• Abnormal prolactin levels may also result from an active disease condition. 

• This test uses the immunoassay method and blood samples.

• This test detects prolactinoma tumors, infertility, hyperprolactinemia, and hypogonadism. 

What is being tested?

The prolactin test’s purpose is to check the prolactin hormone quantity in the blood specimen and help diagnose conditions that cause abnormal levels of the prolactin hormone. Prolactin (PRL) is a significant hormone in the body that has many functions.

Preparation needed?

Sleep problems and high-stress levels can affect the results of the PRL test. Moreover, liver and kidney disease raise the PRL level. Indulging in heavy exercise also influences the results of this test. Also, you must avoid consuming alcohol for 24 hours before submitting the blood sample. It is also recommended to submit the sample in 3 to 4 hours after waking up, preferably before noon, as the prolactin level is generally more during the evening because of the circadian rhythm.

If you need to take a blood sample from an infant for testing, the lab worker guides you about its specific preparation and process. In newborns, a blood sample is taken from the umbilical cord. 

This test uses the immunoassay methodology. Immunoassay is a systematic method in medical diagnostic testing to measure or detect particular substances or proteins by analyzing their unique antibodies or antigens. 

Fasting required?

The prolactin test may require fasting overnight before specimen submission.