How does the Rapid Progesterone Test (PdG) work?

The Rapid Progesterone Test (PdG) detects PdG in the urine (the main metabolite of progesterone) and confirms that your ovulation has been successful. It also confirms that your uterus is capable of accommodating the fertilized egg.

Does the test check for progesterone or PdG?

The test checks PdG levels. Progesterone is secreted in the blood, while PdG is secreted in the urine. More specifically, after ovulation, the ovary secretes progesterone into the blood. It is metabolized in the liver and secreted in the urine as PdG. This is why the urine test detects PdG, the major metabolite of progesterone.

Why is it better to detect PdG in the urine?

After ovulation, the ovary secretes progesterone into the blood, but the secretion takes place in "waves". This means that there can be large discrepancies in the measurement of progesterone in the blood. With the Rapid Progesterone Test (PdG) however, you do the measurement every day and the result is clearly more reliable. You measure the levels of PdG in your urine for four days so you have a complete picture of your ovulation.

Why should I check PdG levels?

Using LH ovulation tests you detect the peak of the hormone and therefore you know your fertile days. With the Rapid Progesterone Test (PdG) however, you go one step further and check if your ovulation has been successful! If the PdG levels are not high, this indicates a problem in the luteal phase, as well as a problem in conception.

How can I combine LH ovulation tests with Rapid Progesterone Test (PdG)?

Ovulation tests detect the hormone LH which peaks before ovulation. PdG tests, on the other hand, are performed after ovulation to confirm its success.

How do I interpret the result when I see a second faint line and how when there is not a second line?

When there is a result line, the test is negative. When there is no result line the test is positive. (This is how most drug tests work.)

What is the sensitivity of Rapid Test Progesterone (PdG)?

When the result is positive, it means that PdG levels are equal to or higher than 5μg/ml.

Why in the positive result there is no result line while in the negative there is one?

The structure of the test is described in the "Principle" section in the instructions for use. Simply put, when no PdG is detected in the urine, the strip works in such a way as to form a visible line in the result area.

The result line is very faint. What does this mean?

When there is a result line - whether it is too faint or more visible - the test is considered negative.

Can I have a false positive test?

Yes, if you are taking formulas containing natural or synthetic progesterone. Consult your gynecologist before using Rapid Test Progesterone (PdG) if you are taking progesterone supplements.