High Prolactin? Simple Steps to Get a Reliable Test Result (Video)

Transcript

Ever wonder why a stress test can show a high prolactin?

Ever wonder why a stress test can show a high prolactin?

Prolactin Test Explained

Here's the short, honest answer, and one tip most people miss.

What prolactin does

Prolactin is the hormone that makes milk after birth, and it also hits the pause button on ovulation. In men, a rise can dim the sex drive. That’s why high levels can stop periods and cause a milky nipple discharge, which can be alarming.

Reading the report

Your lab report usually shows just the test name, your number, the unit and the reference range. Look for the upper limit for non-pregnant women, often around 25 to 30 ng per milliliter. Some labs also note macroprolactin, a harmless clumped form. If the number sits just above the limit, doctors usually repeat the test after a rested, morning draw to rule out stress-related bumps.

Upper limit for women

Most labs set the high end for non-pregnant women at about thirty nanograms per milliliter. That’s roughly the point where doctors start to investigate further.

Why it can rise

Common triggers include stress, a rushed blood draw, poor sleep, or a hard workout. Certain meds, like some anti-nausea drugs, antipsychotics, and some blood pressure pills, can lift it. An underactive thyroid or pregnancy are also frequent culprits. Chest wall irritation from tight clothing or recent shingles can also nudge it up, so note any recent skin issues.

Preparing for the test

Book the draw for the morning, a few hours after waking, and get a normal night’s sleep. Avoid breast or nipple stimulation for a day, wear a comfortable bra, and sit quietly for fifteen minutes before the needle. If your clinic uses two draws through one cannula, they’ll take the lower number, which usually reflects your true level.

The one tip to avoid false high

The single most reliable way to dodge a falsely high reading is to have a relaxed, morning sample taken after a good night’s sleep and a few hours after waking. Skipping caffeine and heavy exercise right before the draw helps keep the reading steady.

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Read the full guide

The full guide is on thecareonline.com. General information only, so check with your doctor for your own case.